Merge branch 'hotfix/5.0.2'

The bundler cache is also disabled because the tag name is always changing

.github/CONTRIBUTING.md

@@ -1,16 +1,43 @@
 # How to Contribute
 
-I want to thank you for sparing a time to improve this project! Here are some guidelines for contributing：
+We want to thank you for sparing time to improve this project! Here are some guidelines for contributing：
 
-To ensure that the blog design is not confused, this project does not accept suggestions for design changes, such as color scheme, fonts, typography, etc. If your request is about an enhancement, it is recommended to first submit a [`Feature Request`](https://github.com/cotes2020/jekyll-theme-chirpy/issues/new?labels=enhancement&template=feature_request.md) issue to discuss whether your idea fits the project. 
+To ensure that the blog design is not confused, this project does not accept suggestions for design changes, such as color scheme, fonts, typography, etc. If your request is about an enhancement, it is recommended to first submit a [_Feature Request_](https://github.com/cotes2020/jekyll-theme-chirpy/issues/new?labels=enhancement&template=feature_request.md) issue to discuss whether your idea fits the project.
+
+## Basic Process
 
 Generally, contribute to the project by:
 
 1. Fork this project on GitHub and clone it locally.
-2. Create a new branch from `master` and give it a descriptive name (e.g., `my-new-feature`, `fix-a-bug`).
-3. After completing the development, commit and push to remote.
-4. Submit a new pull request.
+2. Create a new branch from the default branch and give it a descriptive name (e.g., `my-new-feature`, `fix-a-bug`).
+3. After completing the development, submit a new _Pull Request_.
+
+## Modifying JavaScript
+
+If your contribution involves JS modification, please read the following sections.
+
+### Inline Scripts
+
+If you need to add comments to the inline JS (the JS code between the tags `<script>` and `</script>`), please use `/**/` instead of two slashes `//`. Because the HTML will be compressed by [jekyll-compress-html](https://github.com/penibelst/jekyll-compress-html) during deployment, but it cannot handle the `//` properly. And this will disrupt the structure of the compressed HTML.
+
+### External Scripts
+
+If you need to add or modify JavaScripts in the directory `_javascript`, you need to install [Gulp.js](https://gulpjs.com/docs/en/getting-started/quick-start).
+
+During development, real-time debugging can be performed through the following commands:
+
+```console
+$ bash tools/run.sh
+```
+
+Open another terminal tab and run:
+
+```console
+$ gulp dev # Type 'Ctrl + C' to stop
+```
+
+After debugging, run the command `gulp` (without any argument) will automatically output the compressed files to the directory `assests/js/dist/`.
 
 ---
 
-:tada: Your volunteering will make the open source world more beautiful, thanks again! :tada:
+:tada: Your volunteering will make the open-source world more beautiful, thanks again! :tada:

.github/FUNDING.yml

@@ -1,3 +1,2 @@
-custom:
-  - https://www.buymeacoffee.com/coteschung
-  - https://cotes.gitee.io/alipay-wechat-donation
+ko_fi: coteschung
+custom: https://cotes.gitee.io/alipay-wechat-donation

.github/ISSUE_TEMPLATE/bug_report.md

@@ -6,12 +6,15 @@ about: Create a report to help us improve
 <!-- NOTE: Please maintain all sections, otherwise the issue will be automatically closed :) -->
 
 ## Checklist
-<!-- Please complete the following list of tasks, and then check it by change the "[ ]" to "[x]" -->
-- [ ] I have read the [tutorials](https://chirpy.cotes.info/categories/tutorial/) and know the correct effect of the functional design.
-- [ ] There are no similar reports on existing issues (including closed ones).
-- [ ] I found the bug on the latest code of `master` branch.
+
+<!-- Please complete the following list of tasks, and then check it by changing the "[ ]" to "[x]" -->
+
+- [ ] I have read the [tutorials](https://cotes2020.github.io/chirpy-demo/categories/tutorial/) and know the correct effect of the functional design.
+- [ ] There are no similar reports on [existing issues](https://github.com/cotes2020/jekyll-theme-chirpy/issues?q=is%3Aissue) (including closed ones).
+- [ ] I found the bug on the latest code of the `master` branch.
 
 ## Describe the bug
+
 <!-- A clear and concise description of what the bug is. -->
 
 ### To Reproduce
@@ -25,25 +28,31 @@ Steps to reproduce the behavior:
 -->
 
 ### Expected behavior
+
 <!-- A clear and concise description of what you expected to happen. -->
 
 ### Screenshots
+
 <!-- If applicable, add screenshots to help explain your problem. -->
 
 ### Software
+
 <!-- Please complete the following information -->
 - Ruby version: <!-- by running: `ruby -v` -->
 - Gem version: <!-- by running: `gem -v`-->
 - Bundler version: <!-- by running: `bundle -v`-->
 - Jekyll version: <!-- by running: `bundle list | grep " jekyll "` -->
+- Theme version: <!-- by running: `gem list | grep jekyll-theme-chirpy` -->
 
 ### Desktop
+
 <!-- If necessary, uncomment and fill in the following list:
 - OS: [e.g. macOS 10.15.6]
 - Browser: [e.g. Chrome 85.0.4183.83 (64-bit)]
 -->
 
 ### Smartphone
+
 <!-- If necessary, uncomment and fill in the following list:
 - Device: [e.g. iPhone 6]
 - OS: [e.g. iOS 13.6.1]
@@ -51,4 +60,5 @@ Steps to reproduce the behavior:
 -->
 
 ### Additional context
+
 <!-- Add any other context about the problem here. -->

.github/ISSUE_TEMPLATE/feature_request.md

@@ -7,24 +7,29 @@ labels: enhancement
 <!-- NOTE: Please maintain all sections, otherwise the issue will be automatically closed :) -->
 
 ## Checklist
-<!-- Please complete the following list of tasks, and then check it by change the "[ ]" to "[x]" -->
+
+<!-- Please complete the following list of tasks, and then check it by changing the "[ ]" to "[x]" -->
 - [ ] I have read the [contributing guidelines](https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/.github/CONTRIBUTING.md).
-- [ ] There are no similar request on existing issues (including closed ones).
+- [ ] There is no similar request on [existing issues](https://github.com/cotes2020/jekyll-theme-chirpy/issues?q=is%3Aissue) (including closed ones).
 - [ ] I have read the [project progress](https://github.com/cotes2020/jekyll-theme-chirpy/projects) and know the current progress of the project.
 - [ ] I was in the `master` branch of the latest code.
 
 
 ## Is your feature request related to a problem? Please describe
+
 <!-- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] -->
 
 
 ## Describe the solution you'd like
+
 <!-- A clear and concise description of what you want to happen. -->
 
 
 ## Describe alternatives you've considered
+
 <!-- A clear and concise description of any alternative solutions or features you've considered. -->
 
 
 ## Additional context
+
 <!-- Add any other context or screenshots about the feature request here. -->

.github/ISSUE_TEMPLATE/question.md

@@ -1,6 +1,6 @@
 ---
 name: Question
-about: Ask what ever you want
+about: Ask whatever you want
 labels: question
 ---
 
@@ -8,12 +8,13 @@ labels: question
 
 ## Checklist
 
-<!-- Please complete the following list of tasks, and then check it by change the "[ ]" to "[x]" -->
+<!-- Please complete the following list of tasks, and then check it by changing the "[ ]" to "[x]" -->
 
-- [ ] I have read the [tutorials](https://chirpy.cotes.info/categories/tutorial/) and know the correct effect of the functional design.
-- [ ] There are no similar question on existing issues (including closed ones).
-- [ ] I searched the Internet for related problems, but still couldn't solve it.
-- [ ] My question is based on the latest code of `master` branch.
+- [ ] I have read the [newlest tutorials](https://cotes2020.github.io/chirpy-demo/categories/tutorial/) and know the correct effect of the functional design.
+- [ ] There is no similar question on [existing issues](https://github.com/cotes2020/jekyll-theme-chirpy/issues?q=is%3Aissue) (including closed ones).
+- [ ] I have tried to find the answer on [Jekyll Forum](https://talk.jekyllrb.com/) and [StackOverflow](https://stackoverflow.com/questions/tagged/jekyll).
+- [ ] My question is based on the latest code of the `master` branch.
 
 ## Description
+
 <!-- Please describe your question in detail. -->

.github/PULL_REQUEST_TEMPLATE.md

@@ -2,9 +2,9 @@
 
 <!-- 
 Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.
--->
 
 e.g. Fixes #(issue)
+-->
 
 ## Type of change
 
@@ -22,23 +22,21 @@ Please select the desired item checkbox and change it to "[x]", then delete opti
 Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration
 -->
 
-- [ ] I have run `bash ./tools/test.sh --build` (at the root of the project) locally and passed
+- [ ] I have run `bash ./tools/deploy.sh --dry-run` (at the root of the project) locally and passed
 - [ ] I have tested this feature in the browser
 
 ### Test Configuration
 
 - Browser type & version:
 - Operating system:
-- Bundler version:
-- Ruby version:
-- Jekyll version:
+- Ruby version: <!-- by running: `ruby -v` -->
+- Bundler version: <!-- by running: `bundle -v`-->
+- Jekyll version: <!-- by running: `bundle list | grep " jekyll "` -->
 
 ### Checklist
+
 <!-- Select checkboxes by change the "[ ]" to "[x]" -->
-- [ ] My code follows the [Google style guidelines](https://google.github.io/styleguide/)
-- [ ] I have performed a self-review of my own code
-- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have performed a self-review of my code
+- [ ] I have commented on my code, particularly in hard-to-understand areas
 - [ ] I have made corresponding changes to the documentation
 - [ ] My changes generate no new warnings
-- [ ] I have added tests that prove my fix is effective or that my feature works
-- [ ] Any dependent changes have been merged and published in downstream modules

.github/workflows/ci.yml

@@ -36,12 +36,5 @@ jobs:
           ruby-version: 2.7
           bundler-cache: true
 
-      - name: Build Site
-        env:
-          JEKYLL_ENV: production
-        run: |
-          bundle exec jekyll b
-
       - name: Test Site
-        run: |
-          bash tools/test.sh
+        run: bash tools/deploy.sh --dry-run

.github/workflows/pages-deploy.yml.hook

@@ -25,29 +25,5 @@ jobs:
           ruby-version: 2.7
           bundler-cache: true
 
-      - name: Check baseurl
-        run: |
-          baseurl="$(grep '^baseurl:' _config.yml | sed "s/.*: *//;s/['\"]//g;s/#.*//")"
-          if [[ -n $baseurl ]]; then
-            echo "BASE_URL=$baseurl" >> $GITHUB_ENV
-          fi
-
-      - name: Build Site
-        env:
-          JEKYLL_ENV: production
-        run: |
-          bundle exec jekyll b -d "_site$BASE_URL"
-
-      - name: Test Site
-        run: |
-          bash tools/test.sh
-
       - name: Deploy
-        run: |
-          if [[ -n $BASE_URL ]]; then
-            mv _site$BASE_URL _site-rename
-            rm -rf _site
-            mv _site-rename _site
-          fi
-
-          bash tools/deploy.sh
+        run: bash tools/deploy.sh

.nojekyll

@@ -0,0 +1 @@
+

.travis.yml

@@ -3,48 +3,31 @@ dist: bionic
 
 language: minimal
 
+# only run on tags
+if: branch =~ /^v(\d)+(\.(\d)+){2}$/ OR tag IS present
+
 jobs:
   include:
-
-    - name: CD
+    - name: Deploy
       language: ruby
       rvm: 2.7.0
-
       addons:
         apt:
           packages:
-            # required to avoid SSL error (for htmlproofer)
-            - libcurl4-openssl-dev
-
-      cache:
-        directories:
-          - $TRAVIS_BUILD_DIR/vendor/bundle
-
-      before_install:
-        # match the Gemfile.lock, travis' bundler is 2.1.2
-        - gem install bundler:2.2.4
-        - bundle config path 'vendor/bundle'
-
+            - libcurl4-openssl-dev  # to avoid SSL error (for htmlproofer)
       install:
-        # overriding to drop the travis `--development` flag
-        - bundle install --jobs=3 --retry=3
-
+        - bundle install --jobs=3 --retry=3  # overriding to drop the travis `--development` flag
       script:
         - eval "$BUILD_CMD"
-
       git:
-        depth: false # for posts' lastmod
+        depth: false  # for posts' lastmod
 
     - name: Flush Starter
-      script:
-        - eval "$FLUSH_STARTER"
+      script: eval "$FLUSH_STARTER"
 
 before_script:
   - git -C "$HOME" clone "$BUILDER_REPO" --depth=1 -q
 
-branches:
-  only: /.*-stable$/
-
 notifications:
   email:
     recipients:

Gemfile

@@ -17,3 +17,6 @@ end
 
 # Performance-booster for watching directories on Windows
 gem "wdm", "~> 0.1.1", :install_if => Gem.win_platform?
+
+# Jekyll <= 4.2.0 compatibility with Ruby 3.0
+gem "webrick", "~> 1.7"

README.md

@@ -1,230 +1,89 @@
-<div align="right">
-  <a href="https://github.com/cotes2020/jekyll-theme-chirpy#readme">EN</a> |
-  <a href="https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/docs/README.zh-CN.md">中文 (简体)</a>
-</div>
-
 <div align="center">
-  <h1>Chirpy Jekyll Theme</h1>
-  <p>
-    <a href="https://rubygems.org/gems/jekyll-theme-chirpy">
-    <img alt="Gem Version" src="https://img.shields.io/gem/v/jekyll-theme-chirpy?color=brightgreen"></img>
-  </a>
-    <a href="https://github.com/cotes2020/jekyll-theme-chirpy/actions?query=branch%3Amaster+event%3Apush">
-    <img alt="Build Status" src="https://github.com/cotes2020/jekyll-theme-chirpy/workflows/build/badge.svg?branch=master&event=push"></img>
-  </a>
-    <a href="https://app.codacy.com/manual/cotes2020/jekyll-theme-chirpy?utm_source=github.com&utm_medium=referral&utm_content=cotes2020/jekyll-theme-chirpy&utm_campaign=Badge_Grade_Dashboard">
-    <img alt="Codacy Badge" src="https://api.codacy.com/project/badge/Grade/8220b926db514f13afc3f02b7f884f4b"></img>
-  </a>
-    <a href="https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/LICENSE">
-    <img alt="GitHub license" src="https://img.shields.io/github/license/cotes2020/jekyll-theme-chirpy.svg"></img>
-  </a>
-    <a href="https://996.icu">
-    <img alt="996.icu" src="https://img.shields.io/badge/link-996.icu-%23FF4D5B.svg"></img>
-  </a>
-  </p>
+
+  # Chirpy Jekyll Theme
+
+  A minimal, responsive, and powerful Jekyll theme for presenting professional writing.
+
+  [![Gem Version](https://img.shields.io/gem/v/jekyll-theme-chirpy?color=brightgreen)](https://rubygems.org/gems/jekyll-theme-chirpy)
+  [![Build Status](https://github.com/cotes2020/jekyll-theme-chirpy/workflows/build/badge.svg?branch=master&event=push)](https://github.com/cotes2020/jekyll-theme-chirpy/actions?query=branch%3Amaster+event%3Apush)
+  [![Codacy Badge](https://app.codacy.com/project/badge/Grade/4e556876a3c54d5e8f2d2857c4f43894)](https://www.codacy.com/gh/cotes2020/jekyll-theme-chirpy/dashboard?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=cotes2020/jekyll-theme-chirpy&amp;utm_campaign=Badge_Grade)
+  [![GitHub license](https://img.shields.io/github/license/cotes2020/jekyll-theme-chirpy.svg)](https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/LICENSE)
+  [![996.icu](https://img.shields.io/badge/link-996.icu-%23FF4D5B.svg)](https://996.icu)
+
+  [**Live Demo →**](https://cotes2020.github.io/chirpy-demo)
+
+  [![Devices Mockup](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images@f4e0354b674f65a53b8917f0f786ed2956898cc1/commons/devices-mockup.png)](https://cotes2020.github.io/chirpy-demo)
+
 </div>
 
-A minimal, sidebar, responsive web design Jekyll theme that focuses on text presentation. Designed to help you easily record and share your knowledge.
-
-[Live Demo »](https://chirpy.cotes.info)
-
-<p align="center">
-  <a href="https://chirpy.cotes.info">
-    <img alt="Devices Mockup" src="https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/commons/devices-mockup.png"></img>
-  </a>
-</p>
-
 ## Features
 
 - Localized Layout
-- Configurable Theme Mode
+- Dark/Light Theme Mode
 - Pinned Posts
 - Hierarchical Categories
 - Last Modified Date for Posts
 - Table of Contents
-- Automatically Recommend Related Posts
+- Auto-generated Related Posts
 - Syntax Highlighting
 - Mathematical Expressions
 - Mermaid Diagram & Flowchart
+- Disqus/Utterances Comments
 - Search
 - Atom Feeds
-- Disqus Comments
 - Google Analytics
-- GA Pageviews Reporting (Advanced)
+- GA Pageviews Reporting
 - SEO & Performance Optimization
 
-## Prerequisites
 
-Follow the [Jekyll Docs](https://jekyllrb.com/docs/installation/) to complete the installation of `Ruby`, `RubyGems`, `Jekyll` and `Bundler`. Please note that the version of `Ruby` must meet the requirements of the theme on [RubyGems.org](https://rubygems.org/gems/jekyll-theme-chirpy).
+## Quick Start
 
-## Installation
+Before starting, please follow the instructions in the [Jekyll Docs](https://jekyllrb.com/docs/installation/) to complete the installation of `Ruby`, `RubyGems`, `Jekyll`, and `Bundler`.
 
-There are two ways to get the theme:
+### Step 1. Creating a New Site
 
-- **[Install from RubyGems](#install-from-rubygems)** - Easy to update, isolate irrelevant project files so you can focus on writing.
-- **[Fork on GitHub](#fork-on-github)** - Convenient for custom development, but difficult to update, only suitable for web developers.
+Create a new repository from the [**Chirpy Starter**](https://github.com/cotes2020/chirpy-starter/generate) and name it `<GH_USERNAME>.github.io`, where `GH_USERNAME` represents your GitHub username.
 
-### Install from RubyGems
+### Step 2. Installing Dependencies
 
-Add this line to your Jekyll site's `Gemfile`:
-
-```ruby
-gem "jekyll-theme-chirpy"
-```
-
-And add this line to your Jekyll site's `_config.yml`:
-
-```yaml
-theme: jekyll-theme-chirpy
-```
-
-And then execute:
+Before running for the first time, go to the root directory of your site, and install dependencies as follows:
 
 ```console
 $ bundle
 ```
 
-Next, go to the installed local theme path:
+### Step 3. Running Local Server
 
-```console
-$ cd "$(bundle info --path jekyll-theme-chirpy)"
-```
-
-And then copy the critical files (for details, see [starter project][starter]) from the theme's gem to your Jekyll site.
-
-> ⚠️ **Watch out for duplicate files!**
->
-If your Jekyll site is created by the `jekyll new` command, there will be `index.markdown` and `about.markdown` in the root directory of your site. Please be sure to remove them, otherwise they will overwrite the `index.html` and `_tabs/about.html` from this project, resulting in blank or messy pages.
-
-As an alternative, which we recommend, you can create a Jekyll site [**using the starter template**][use-starter] to save time copying files from the theme's gem. We've prepared everything you need there!
-
-### Fork on GitHub
-
-[Fork **Chirpy**](https://github.com/cotes2020/jekyll-theme-chirpy/fork) on GitHub and then clone your fork to local. (Please note that the default branch code is in development.  If you want the blog to be stable, please switch to the [latest tag](https://github.com/cotes2020/jekyll-theme-chirpy/tags) and start writing.)
-
-Install gem dependencies by:
-
-```console
-$ bundle
-```
-
-And then execute:
-
-```console
-$ bash tools/init.sh
-```
-
-> **Note**: If you don't plan to deploy your site on GitHub Pages, append parameter option `--no-gh` at the end of the above command.
-
-What it does is:
-
-1. Remove some files or directories from your repository:
-    - `.travis.yml`
-    - files under `_posts`
-    - folder `docs`
-
-2. If you use the `--no-gh` option, the directory `.github` will be deleted. Otherwise, setup the GitHub Action workflow by removing the extension `.hook` of `.github/workflows/pages-deploy.yml.hook`, and then remove the other files and directories in the folder `.github`.
-
-3. Automatically create a commit to save the changes.
-
-## Usage
-
-### Configuration
-
-Update the variables of `_config.yml` as needed. Some of them are typical options:
-
-- `url`
-- `avatar`
-- `timezone`
-- `lang`
-
-### Customing Stylesheet
-
-If you need to customize stylesheet, copy the theme's `assets/css/style.scss` to the same path on your Jekyll site, and then add the custom style at the end of the style file.
-
-Starting from `v4.1.0`, if you want to overwrite the SASS variables defined in `_sass/addon/variables.scss`, create a new file `_sass/variables-hook.scss` and assign new values to the target variable in it.
-
-### Running Local Server
-
-You may want to preview the site contents before publishing, so just run it by:
+Run the following command in the root directory of the site:
 
 ```console
 $ bundle exec jekyll s
 ```
 
-Or run the site on Docker with the following command:
+Or run with Docker:
 
-```terminal
+```console
 $ docker run -it --rm \
     --volume="$PWD:/srv/jekyll" \
     -p 4000:4000 jekyll/jekyll \
     jekyll serve
 ```
 
-Open a browser and visit to _<http://localhost:4000>_.
-
-### Deployment
-
-Before the deployment begins, checkout the file `_config.yml` and make sure the `url` is configured correctly. Furthermore, if you prefer the [**project site**](https://help.github.com/en/github/working-with-github-pages/about-github-pages#types-of-github-pages-sites) and don't use a custom domain, or you want to visit your website with a base URL on a web server other than **GitHub Pages**, remember to change the `baseurl` to your project name that starting with a slash, e.g, `/project-name`.
-
-Now you can choose ONE of the following methods to deploy your Jekyll site.
-
-#### Deploy on GitHub Pages
-
-For security reasons, GitHub Pages build runs on `safe` mode, which restricts us from using plugins to generate additional page files. Therefore, we can use **GitHub Actions** to build the site, store the built site files on a new branch, and use that branch as the source of the GH Pages service.
-
-Quickly check the files needed for GitHub Actions build:
-
-- Ensure your Jekyll site has the file `.github/workflows/pages-deploy.yml`. Otherwise, create a new one and fill in the contents of the [workflow file][workflow], and the value of the `on.push.branches` should be the same as your repo's default branch name.
-- Ensure your Jekyll site has file `tools/test.sh` and `tools/deploy.sh`. Otherwise, copy them from this repo to your Jekyll site.
-
-And then rename your repository to `<GH-USERNAME>.github.io` on GitHub.
-
-Now publish your Jekyll site by:
-
-1. Push any commit to remote to trigger the GitHub Actions workflow. Once the build is complete and successful, a new remote branch named `gh-pages` will appear to store the built site files.
-
-2. Browse to your repo's landing page on GitHub and select the branch `gh-pages` as the [publishing source](https://docs.github.com/en/github/working-with-github-pages/configuring-a-publishing-source-for-your-github-pages-site) through _Settings_ → _Options_ → _GitHub Pages_:
-
-    ![gh-pages-sources](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190809/gh-pages-sources.png)
-
-3. Visit your website at the address indicated by GitHub.
-
-#### Deploy on Other Platforms
-
-On platforms other than GitHub, we cannot enjoy the convenience of **GitHub Actions**. Therefore, we should build the site locally (or on some other 3rd-party CI platform) and then put the site files on the server.
-
-Go to the root of the source project, build your site by:
-
-```console
-$ JEKYLL_ENV=production bundle exec jekyll b
-```
-
-Or build the site with Docker by:
-
-```terminal
-$ docker run -it --rm \
-    --env JEKYLL_ENV=production \
-    --volume="$PWD:/srv/jekyll" \
-    jekyll/jekyll \
-    jekyll build
-```
-
-Unless you specified the output path, the generated site files will be placed in folder `_site` of the project's root directory. Now you should upload those files to your web server.
+After a while, the local service will be published at _<http://127.0.0.1:4000>_.
 
 ## Documentation
 
-For more details and a better reading experience, please check out the [tutorials on the demo site](https://chirpy.cotes.info/categories/tutorial/). In the meanwhile, a copy of the tutorial is also available on the [Wiki](https://github.com/cotes2020/jekyll-theme-chirpy/wiki). Please note that the tutorials on the demo website or Wiki are based on the latest release, and the features of `master` branch usually ahead of the documentation.
+For more details on usage, please refer to the tutorial on the [demo website](https://cotes2020.github.io/chirpy-demo/). At the same time, a copy of the tutorial is also available on the [Wiki](https://github.com/cotes2020/jekyll-theme-chirpy/wiki). Please note that the tutorial is based on the [latest release](https://github.com/cotes2020/jekyll-theme-chirpy/releases), and the features of the default branch are usually ahead of the documentation.
 
 ## Contributing
 
-The old saying, "Two heads are better than one." Consequently, welcome to report bugs, improve code quality or submit a new feature. For more information, see [contributing guidelines](.github/CONTRIBUTING.md).
+Welcome to report bugs, improve code quality or submit a new feature. For more information, see [contributing guidelines](.github/CONTRIBUTING.md).
 
 ## Credits
 
-This theme is mainly built with [Jekyll](https://jekyllrb.com/) ecosystem, [Bootstrap](https://getbootstrap.com/), [Font Awesome](https://fontawesome.com/) and some other wonderful tools (their copyright information can be found in the relevant files). The avatar and favicon design comes from [Clipart Max](https://www.clipartmax.com/middle/m2i8b1m2K9Z5m2K9_ant-clipart-childrens-ant-cute/).
+This theme is mainly built with [Jekyll](https://jekyllrb.com/) ecosystem, [Bootstrap](https://getbootstrap.com/), [Font Awesome](https://fontawesome.com/) and some other wonderful tools (their copyright information can be found in the relevant files). The avatar and favicon design come from [Clipart Max](https://www.clipartmax.com/middle/m2i8b1m2K9Z5m2K9_ant-clipart-childrens-ant-cute/).
 
-:tada: Thanks to all the volunteers who contributed to this project, their GitHub IDs are on [this list](https://github.com/cotes2020/jekyll-theme-chirpy/graphs/contributors). Also, I won't forget those guys who submitted the issues or unmerged PR because they reported bugs, shared ideas, or inspired me to write more readable documentation.
+:tada: Thanks to all the volunteers who contributed to this project, their GitHub IDs are on [this list](https://github.com/cotes2020/jekyll-theme-chirpy/graphs/contributors). Also, I won't forget those guys who submitted the issues or unmerged PR because they reported bugs, shared ideas or inspired me to write more readable documentation.
 
 Last but not least, thank [JetBrains][jb] for providing the open source license.
 
@@ -232,7 +91,7 @@ Last but not least, thank [JetBrains][jb] for providing the open source license.
 
 If you like this theme or find it helpful, please consider sponsoring me, because it will encourage and help me better maintain the project, I will be very grateful!
 
-[![Buy Me a Coffee](https://img.shields.io/badge/-Buy%20Me%20a%20Coffee-ff813f?logo=buy-me-a-coffee&logoColor=white)](https://www.buymeacoffee.com/coteschung)
+[![Ko-fi](https://img.shields.io/badge/-Buy%20Me%20a%20Coffee-ff5f5f?logo=ko-fi&logoColor=white)](https://ko-fi.com/coteschung)
 [![Wechat Pay](https://img.shields.io/badge/-Tip%20Me%20on%20WeChat-brightgreen?logo=wechat&logoColor=white)][cn-donation]
 [![Alipay](https://img.shields.io/badge/-Tip%20Me%20on%20Alipay-blue?logo=alipay&logoColor=white)][cn-donation]
 
@@ -240,10 +99,6 @@ If you like this theme or find it helpful, please consider sponsoring me, becaus
 
 This work is published under [MIT](https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/LICENSE) License.
 
-[starter]: https://github.com/cotes2020/chirpy-starter
-[use-starter]: https://github.com/cotes2020/chirpy-starter/generate
-[workflow]: https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/.github/workflows/pages-deploy.yml.hook
-
 <!-- ReadMe links -->
 
 [jb]: https://www.jetbrains.com/?from=jekyll-theme-chirpy

_config.yml

@@ -3,19 +3,15 @@
 # Import the theme
 theme: jekyll-theme-chirpy
 
-# Only if your site type is GitHub Project sites and doesn't have a custom domain,
-# change below value to '/projectname'.
+# Change the following value to '/PROJECT_NAME' ONLY IF your site type is GitHub Pages Project sites
+# and doesn't have a custom domain.
 baseurl: ''
 
-# The language of the site layout › http://www.lingoes.net/en/translator/langcode.htm
-# Go to folder '_data/locales' to check the available language options
+# The language of the webpage › http://www.lingoes.net/en/translator/langcode.htm
+# If it has the same name as one of the files in folder `_data/locales`, the layout language will also be changed,
+# otherwise, the layout language will use the default value of 'en'.
 lang: en
 
-# The lang attribute of HTML › http://www.lingoes.net/en/translator/langcode.htm
-# We can specify a language different from the layout of the content.
-# If it is not assigned, the site will use the value of 'lang' instead.
-content_lang: ''
-
 # Change to your timezone › http://www.timezoneconverter.com/cgi-bin/findzone/findzone
 timezone: Asia/Shanghai
 
@@ -83,17 +79,23 @@ theme_mode:   # [light|dark]
 # will be added to all image (site avatar & posts' images) paths starting with '/'
 #
 # e.g. 'https://cdn.com'
-img_cdn: ''
+img_cdn: 'https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images@f4e0354b674f65a53b8917f0f786ed2956898cc1'
 
 # the avatar on sidebar, support local or CORS resources
-avatar: https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/commons/avatar.jpg
+avatar: '/commons/avatar.jpg'
 
 # boolean type, the global switch for ToC in posts.
 toc: true
 
-disqus:
-  comments: false  # boolean type, the global switch for posts comments.
-  shortname: ''    # Fill with your Disqus shortname. › https://help.disqus.com/en/articles/1717111-what-s-a-shortname
+comments:
+  active:         # The global switch for posts comments, e.g., 'disqus'.  Keep it empty means disable
+  # The active options are as follows:
+  disqus:
+    shortname:    # fill with the Disqus shortname. › https://help.disqus.com/en/articles/1717111-what-s-a-shortname
+  # utterances settings › https://utteranc.es/
+  utterances:
+    repo:         # <gh-username>/<repo>
+    issue_term:   # < url | pathname | title | ...>
 
 paginate: 10
 
@@ -115,7 +117,6 @@ collections:
     output: true
     sort_by: order
 
-
 defaults:
   -
     scope:
@@ -140,7 +141,6 @@ defaults:
     values:
       layout: page
       permalink: /:title/
-      dynamic_title: true    # Hide title in mobile screens.
 
 sass:
   style: compressed
@@ -163,7 +163,7 @@ exclude:
   - LICENSE
   - gulpfile.js
   - node_modules
-  - '*.json'
+  - package*.json
 
 jekyll-archives:
   enabled: [categories, tags]
@@ -173,6 +173,3 @@ jekyll-archives:
   permalinks:
     tag: /tags/:name/
     category: /categories/:name/
-
-# Outdated configuration warning
-outdated: '-- Missing configuration options! --'

_data/contact.yml

@@ -2,7 +2,7 @@
 
 -
   type: github
-  icon: 'fab fa-github-alt'
+  icon: 'fab fa-github'
 -
   type: twitter
   icon: 'fab fa-twitter'

_data/locales/en.yml

@@ -16,10 +16,11 @@ tabs:
   archives: Archives
   about: About
 
-# text displayed in the search bar
+# the text displayed in the search bar & search results
 search:
   hint: search
   cancel: Cancel
+  no_results: Oops! No result founds.
 
 panel:
   lastmod: Recent Update
@@ -58,12 +59,13 @@ not_found:
 # ----- Posts related labels -----
 
 post:
-  published: 'on'
+  written_by: By
+  posted: Posted
   updated: Updated
   timeago:
-    day: d ago
-    hour: hr ago
-    minute: min ago
+    day: days ago
+    hour: hours ago
+    minute: minutes ago
     just_now: just now
   words: words
   pageview_measure: views
@@ -75,7 +77,9 @@ post:
   button:
     next: Newer
     previous: Older
-    copy:
+    copy_code:
+      succeed: Copied!
+    share_link:
       title: Copy link
       succeed: Link copied successfully!
   # pinned prompt of posts list on homepage

_data/locales/id-ID.yml

@@ -0,0 +1,91 @@
+# The layout text of site
+
+# ----- Commons label -----
+
+layout:
+  post: Postingan
+  category: Kategori
+  tag: Tagar
+
+# The tabs of sidebar
+tabs:
+  # format: <filename_without_extension>: <value>
+  home: Beranda
+  categories: Kategori
+  tags: Tagar
+  archives: Arsip
+  about: Tentang
+
+# the text displayed in the search bar & search results
+search:
+  hint: Cari
+  cancel: Batal
+  no_results: Ups! Tidak ada hasil yang ditemukan.
+
+panel:
+  lastmod: Postingan Terbaru
+  trending_tags: Tagar Terpopuler
+  toc: Konten
+
+#  The liquid date format › http://strftime.net/
+date_format:
+  tooltip: "%a, %e %b, %Y, %l:%M %p"
+  post:
+    long: "%e %b, %Y"
+    short: "%e %b"
+    archive_month: "%b"
+
+copyright:
+  # Shown at the bottom of the post
+  license:
+    template: Postingan ini dilisensikan di bawah :LICENSE_NAME oleh penulis.
+    name: CC BY 4.0
+    link: https://creativecommons.org/licenses/by/4.0/
+
+  # Displayed in the footer
+  brief: Sebagian konten dilindungi.
+  verbose: >-
+    Kecuali jika dinyatakan, Postingan blog di situs ini dilisensikan
+    di bawah Lisensi Creative Commons Attribution 4.0 International (CC BY 4.0) oleh penulis.
+
+meta: Didukung oleh :PLATFORM dengan tema :THEME.
+
+not_found:
+  statment: Maaf, kami gagal menemukan URL itu atau memang mengarah ke sesuatu yang tidak ada.
+  hint_template: :HEAD_BAK untuk mencoba mencari kembali, atau cari di :ARCHIVES_PAGE.
+  head_back: Kembali ke Beranda
+  archives_page: Halaman Arsip
+
+# ----- Posts related labels -----
+
+post:
+  written_by: Oleh
+  posted: Diterbitkan
+  updated: Diperbarui
+  timeago:
+    day: hari yang lalu
+    hour: jam yang lalu
+    minute: menit yang lalu
+    just_now: baru saja
+  words: kata
+  pageview_measure: dilihat
+  read_time:
+    unit: menit
+    prompt: baca
+  relate_posts: Postingan Lainya
+  share: Bagikan
+  button:
+    next: Terbaru
+    previous: Terlama
+    copy_code:
+      succeed: Disalin!
+    share_link:
+      title: Salin tautan
+      succeed: Tautan berhasil disalin!
+  # pinned prompt of posts list on homepage
+  pin_prompt: Disematkan
+
+# categories page
+categories:
+  category_measure: kategori
+  post_measure: Postingan

_data/locales/ko-KR.yml

@@ -0,0 +1,91 @@
+# The layout text of site
+
+# ----- Commons label -----
+
+layout:
+  post: 포스트
+  category: 카테고리
+  tag: 태그
+
+# The tabs of sidebar
+tabs:
+  # format: <filename_without_extension>: <value>
+  home: 홈
+  categories: 카테고리
+  tags: 태그
+  archives: 아카이브
+  about: 정보
+
+# the text displayed in the search bar & search results
+search:
+  hint: 검색
+  cancel: 취소
+  no_results: 검색 결과가 없습니다.
+
+panel:
+  lastmod: 최근 업데이트
+  trending_tags: 인기 태그
+  toc: 바로가기
+
+#  The liquid date format › http://strftime.net/
+date_format:
+  tooltip: '%F, %R %z'
+  post:
+    long: '%Y년 %m월 %d일'
+    short: '%m월 %d일'
+    archive_month: '%b월'
+
+copyright:
+  # Shown at the bottom of the post
+  license:
+    template: 이 기사는 저작권자의 :LICENSE_NAME 라이센스를 따릅니다.
+    name: CC BY 4.0
+    link: https://creativecommons.org/licenses/by/4.0/
+
+  # Displayed in the footer
+  brief: 일부 권리 보유
+  verbose: >-
+    명시되지 않는 한 이 사이트의 블로그 게시물은 작성자의
+    Creative Commons Attribution 4.0 International(CC BY 4.0) 라이선스에 따라 사용이 허가되었습니다.
+
+meta: Powered by :PLATFORM with :THEME theme.
+
+not_found:
+  statment: 해당 URL은 존재하지 않습니다.
+  hint_template: :HEAD_BAK을 눌러 다시 찾거나 :ARCHIVES_PAGE에서 검색해 주세요.
+  head_back: 홈으로 돌아가기
+  archives_page: 아카이브 페이지
+
+# ----- Posts related labels -----
+
+post:
+  written_by: By
+  posted: 게시
+  updated: 업데이트
+  timeago:
+    day: 일 전
+    hour: 시간 전
+    minute: 분 전
+    just_now: 방금
+  words: 단어
+  pageview_measure: 조회
+  read_time:
+    unit: 분
+    prompt: 읽는 시간
+  relate_posts: 관련된 글
+  share: 공유하기
+  button:
+    next: 다음 글
+    previous: 이전 글
+    copy_code:
+      succeed: 복사되었습니다!
+    share_link:
+      title: 링크 복사하기
+      succeed: 링크가 복사되었습니다!
+  # pinned prompt of posts list on homepage
+  pin_prompt: 핀
+
+# categories page
+categories:
+  category_measure: 카테고리
+  post_measure: 포스트

_data/locales/zh-CN.yml

@@ -16,19 +16,20 @@ tabs:
   archives: 归档
   about: 关于
 
-# text displayed in the search bar
+# the text displayed in the search bar & search results
 search:
   hint: 搜索
   cancel: 取消
+  no_results: 搜索结果为空
 
 panel:
   lastmod: 最近更新
   trending_tags: 热门标签
-  toc: 目录
+  toc: 文章内容
 
 #  The liquid date format › http://strftime.net/
 date_format:
-  tooltip: '%a, %F, %R %z'
+  tooltip: '%F, %R %z'
   post:
     long: '%F'
     short: '%m-%d'
@@ -57,7 +58,8 @@ not_found:
 # ----- Posts related labels -----
 
 post:
-  published: 发表于
+  written_by: 作者
+  posted: 发表于
   updated: 更新于
   timeago:
     day: 天前
@@ -74,8 +76,10 @@ post:
   button:
     next: 下一篇
     previous: 上一篇
-    copy:
-      title: 分享链接
+    copy_code:
+      succeed: 已复制！
+    share_link:
+      title:  分享链接
       succeed: 链接已复制！
   # pinned prompt of posts list on homepage
   pin_prompt: 顶置

_includes/comments.html

@@ -0,0 +1,5 @@
+<!--  The comments switcher -->
+{% if page.comments and site.comments.active %}
+  {% capture path %}comments/{{ site.comments.active }}.html{% endcapture %}
+  {% include {{ path }} %}
+{% endif %}

_includes/comments/disqus.html

@@ -0,0 +1,54 @@
+<!--
+  The Disqus lazy loading.
+-->
+<div id="disqus_thread" class="pt-2 pb-2">
+  <p class="text-center text-muted small">
+    Comments powered by <a href="https://disqus.com/">Disqus</a>.
+  </p>
+</div>
+
+<script type="text/javascript">
+
+  var disqus_config = function () {
+    this.page.url = '{{ page.url | absolute_url }}';
+    this.page.identifier = '{{ page.url }}';
+  };
+
+  /* Lazy loading */
+
+  var disqus_observer = new IntersectionObserver(function (entries) {
+    if(entries[0].isIntersecting) {
+        (function () {
+            var d = document, s = d.createElement('script');
+            s.src = 'https://{{ site.comments.disqus.shortname }}.disqus.com/embed.js';
+            s.setAttribute('data-timestamp', +new Date());
+            (d.head || d.body).appendChild(s);
+        })();
+
+        disqus_observer.disconnect();
+    }
+  }, { threshold: [0] });
+
+  disqus_observer.observe(document.querySelector('#disqus_thread'));
+
+  /* Auto switch theme */
+
+  function reloadDisqus() {
+    /* Disqus hasn't been loaded */
+    if (typeof DISQUS === "undefined") {
+      return;
+    }
+
+    if (document.readyState == 'complete') {
+      DISQUS.reset({ reload: true, config: disqus_config });
+    }
+  }
+
+  const modeToggle = document.querySelector(".mode-toggle");
+
+  if (typeof modeToggle !== "undefined") {
+    /*  modeToggle.addEventListener('click', reloadDisqus); // not pretty for 'color-scheme'  */
+    window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', reloadDisqus);
+  }
+
+</script>

_includes/comments/utterances.html

@@ -0,0 +1,51 @@
+<!-- https://utteranc.es/ -->
+<script src="https://utteranc.es/client.js"
+        repo="{{ site.comments.utterances.repo }}"
+        issue-term="{{ site.comments.utterances.issue_term }}"
+        crossorigin="anonymous"
+        async>
+</script>
+
+<script type="text/javascript">
+  $(function() {
+    const origin = "https://utteranc.es";
+    const iframe = "iframe.utterances-frame";
+    const lightTheme = "github-light";
+    const darkTheme = "github-dark";
+    let initTheme = lightTheme;
+
+    if ($("html[mode=dark]").length > 0
+        || ($("html[mode]").length == 0
+            && window.matchMedia("(prefers-color-scheme: dark)").matches)) {
+      initTheme = darkTheme;
+    }
+
+    addEventListener("message", (event) => {
+      let theme;
+
+      /* credit to <https://github.com/utterance/utterances/issues/170#issuecomment-594036347> */
+      if (event.origin === origin) {
+        /* page initial */
+        theme = initTheme;
+
+      } else if (event.source === window && event.data &&
+            event.data.direction === ModeToggle.ID) {
+        /* global theme mode changed */
+        const mode = event.data.message;
+        theme = (mode === ModeToggle.DARK_MODE ? darkTheme : lightTheme);
+
+      } else {
+        return;
+      }
+
+      const message = {
+        type: "set-theme",
+        theme: theme
+      };
+
+      const utterances = document.querySelector(iframe).contentWindow;
+      utterances.postMessage(message, origin);
+    });
+
+  });
+</script>

_includes/disqus.html

@@ -1,25 +0,0 @@
-<!--
-  The Disqus lazy loading.
-  Powered by: <https://github.com/osvaldasvalutis/disqusLoader.js>
--->
-
-<div id="disqus" class="pt-2 pb-2">
-  <p class="text-center text-muted small pb-5">
-    Comments powered by <a href="https://disqus.com/">Disqus</a>.
-  </p>
-</div>
-
-<script src="{{ '/assets/js/lib/jquery.disqusloader.min.js' | relative_url }}"></script>
-<script>
-  const options = {
-    scriptUrl: '//{{ site.disqus.shortname }}.disqus.com/embed.js',
-
-    disqusConfig: function() {
-      this.page.title = '{{ page.title }}';
-      this.page.url = '{{ page.url | absolute_url }}';
-      this.page.identifier = '{{ page.url }}';
-    }
-  };
-
-  $.disqusLoader('#disqus', options);
-</script>

_includes/footer.html

@@ -3,16 +3,14 @@
 -->
 
 <footer class="d-flex w-100 justify-content-center">
-  <div class="d-flex justify-content-between align-items-center">
+  <div class="d-flex justify-content-between align-items-center text-muted">
     <div class="footer-left">
       <p class="mb-0">
         © {{ 'now' | date: "%Y" }}
         <a href="{{ site.social.links[0] }}">{{ site.social.name }}</a>.
-        {% if site.data.locales[site.lang].copyright.brief %}
+        {% if site.data.locales[lang].copyright.brief %}
         <span data-toggle="tooltip" data-placement="top"
-          title="{{ site.data.locales[site.lang].copyright.verbose }}">{{ site.data.locales[site.lang].copyright.brief }}</span>
-        {% else %}
-        <span class="text-muted">{{ site.outdated }}</span>
+          title="{{ site.data.locales[lang].copyright.verbose }}">{{ site.data.locales[lang].copyright.brief }}</span>
         {% endif %}
       </p>
     </div>
@@ -27,7 +25,7 @@
           <a href="https://github.com/cotes2020/jekyll-theme-chirpy" target="_blank" rel="noopener">Chirpy</a>
         {% endcapture %}
 
-        {{ site.data.locales[site.lang].meta
+        {{ site.data.locales[lang].meta
           | default: 'Powered by :PLATFORM with :THEME theme.'
           | replace: ':PLATFORM', _platform | replace: ':THEME', _theme
         }}

_includes/head.html

@@ -8,12 +8,11 @@
 
   {% if page.layout == 'home' or page.layout == 'post' %}
 
-    <!-- i18n for timeago.js -->
-    <meta name="layout-lang" content="{{ site.lang | default: "en" }}">
-    <meta name="day-prompt" content="{{ site.data.locales[site.lang].post.timeago.day | default: "d ago" }}">
-    <meta name="hour-prompt" content="{{ site.data.locales[site.lang].post.timeago.hour | default: "hr ago" }}">
-    <meta name="minute-prompt" content="{{ site.data.locales[site.lang].post.timeago.minute | default: "min ago" }}">
-    <meta name="justnow-prompt" content="{{ site.data.locales[site.lang].post.timeago.just_now | default: "just now" }}">
+    <!-- i18n for `_javascript/utils/timeago.js` -->
+    <meta name="day-prompt" content="{{ site.data.locales[lang].post.timeago.day }}">
+    <meta name="hour-prompt" content="{{ site.data.locales[lang].post.timeago.hour }}">
+    <meta name="minute-prompt" content="{{ site.data.locales[lang].post.timeago.minute }}">
+    <meta name="justnow-prompt" content="{{ site.data.locales[lang].post.timeago.just_now }}">
 
     {% if site.google_analytics.pv.proxy_endpoint %}
       <meta name="pv-proxy-endpoint" content="{{ site.google_analytics.pv.proxy_endpoint }}">

_includes/js-selector.html

@@ -4,7 +4,7 @@
 
 <!-- layout specified -->
 
-{% if page.layout == 'home' or page.layout == 'post' %}
+{% if page.layout == 'post' %}
   {% if site.google_analytics.pv.proxy_endpoint or site.google_analytics.pv.cache_path %}
     <!-- pv-report needs countup.js -->
     <script async src="https://cdn.jsdelivr.net/npm/countup.js@1.9.3/dist/countUp.min.js"></script>
@@ -14,7 +14,7 @@
 
 {% if page.layout == 'post' or page.layout == 'page' %}
   <!-- image lazy-loading & popup -->
-  <script src="https://cdn.jsdelivr.net/combine/npm/lozad/dist/lozad.min.js,npm/magnific-popup@1/dist/jquery.magnific-popup.min.js"></script>
+  <script src="https://cdn.jsdelivr.net/combine/npm/lozad/dist/lozad.min.js,npm/magnific-popup@1/dist/jquery.magnific-popup.min.js,npm/clipboard@2/dist/clipboard.min.js"></script>
 {% endif %}
 
 {% if page.layout == 'home'

_includes/lang.html

@@ -0,0 +1,8 @@
+{% comment %}
+Detect appearance language and return it through variable "lang"
+{% endcomment %}
+{% if site.data.locales[site.lang] %}
+  {% assign lang = site.lang %}
+{% else %}
+  {% assign lang = 'en' %}
+{% endif %}

_includes/language-alias.html

@@ -0,0 +1,70 @@
+{% comment %}
+
+  Convert the alias of the syntax language to the official name
+
+  See: <https://github.com/rouge-ruby/rouge/wiki/List-of-supported-languages-and-lexers>
+
+{% endcomment %}
+
+{% assign _lang = include.language | default: '' %}
+
+{% case _lang %}
+  {% when 'actionscript', 'as', 'as3' %}
+    {{ 'ActionScript' }}
+  {% when 'applescript' %}
+    {{ 'AppleScript' }}
+  {% when 'brightscript', 'bs', 'brs' %}
+    {{ 'BrightScript' }}
+  {% when 'cfscript', 'cfc' %}
+    {{ 'CFScript' }}
+  {% when 'coffeescript', 'coffee', 'coffee-script' %}
+    {{ 'CoffeeScript' }}
+  {% when 'cs', 'csharp' %}
+   {{ 'C#' }}
+  {% when 'erl' %}
+    {{ 'Erlang' }}
+  {% when 'graphql' %}
+   {{ 'GraphQL' }}
+  {% when 'haskell', 'hs' %}
+   {{ 'Haskell' }}
+  {% when 'javascript', 'js' %}
+    {{ 'JavaScript' }}
+  {% when 'make', 'mf', 'gnumake', 'bsdmake' %}
+    {{ 'Makefile' }}
+  {% when 'md', 'mkd' %}
+    {{ 'Markdown' }}
+  {% when 'm' %}
+    {{ 'Matlab' }}
+  {% when 'objective_c', 'objc', 'obj-c', 'obj_c', 'objectivec' %}
+    {{ 'Objective-C' }}
+  {% when 'perl', 'pl' %}
+    {{ 'Perl' }}
+  {% when 'php','php3','php4','php5' %}
+    {{ 'PHP' }}
+  {% when 'py' %}
+    {{ 'Python' }}
+  {% when 'rb' %}
+    {{ 'Ruby' }}
+  {% when 'rs','no_run','ignore','should_panic' %}
+    {{ 'Rust' }}
+  {% when 'bash', 'zsh', 'ksh', 'sh' %}
+    {{ 'Shell' }}
+  {% when 'st', 'squeak' %}
+    {{ 'Smalltalk' }}
+  {% when 'tex'%}
+    {{ 'TeX' }}
+  {% when 'latex' %}
+    {{ 'LaTex' }}
+  {% when 'ts', 'typescript' %}
+    {{ 'TypeScript' }}
+  {% when 'vb', 'visualbasic' %}
+    {{ 'Visual Basic' }}
+  {% when 'vue', 'vuejs' %}
+    {{ 'Vue.js' }}
+  {% when 'yml' %}
+    {{ 'YAML' }}
+  {% when 'css', 'html', 'scss', 'ssh', 'toml', 'xml', 'yaml', 'json' %}
+    {{ _lang | upcase }}
+  {% else %}
+    {{ _lang | capitalize }}
+{% endcase %}

_includes/mermaid.html

@@ -3,8 +3,34 @@
 -->
 
 <script src="https://cdn.jsdelivr.net/npm/mermaid@8/dist/mermaid.min.js"></script>
+
 <script>
   $(function() {
+    function updateMermaid(event) {
+      if (event.source === window && event.data &&
+            event.data.direction === ModeToggle.ID) {
+
+        const mode = event.data.message;
+
+        if (typeof mermaid === "undefined") {
+          return;
+        }
+
+        let expectedTheme = (mode === ModeToggle.DARK_MODE? "dark" : "default");
+        let config = { theme: expectedTheme };
+
+        /* Re-render the SVG › <https://github.com/mermaid-js/mermaid/issues/311#issuecomment-332557344> */
+        $(".mermaid").each(function() {
+          let svgCode = $(this).prev().children().html();
+          $(this).removeAttr("data-processed");
+          $(this).html(svgCode);
+        });
+
+        mermaid.initialize(config);
+        mermaid.init(undefined, ".mermaid");
+      }
+    }
+
     let initTheme = "default";
 
     if ($("html[mode=dark]").length > 0
@@ -25,5 +51,7 @@
     });
 
     mermaid.initialize(mermaidConf);
+
+    window.addEventListener("message", updateMermaid);
   });
 </script>

_includes/mode-toggle.html

@@ -2,14 +2,12 @@
   Switch the mode between dark and light.
 -->
 
-<i class="mode-toggle fas fa-adjust"></i>
-
 <script type="text/javascript">
-
   class ModeToggle {
     static get MODE_KEY() { return "mode"; }
     static get DARK_MODE() { return "dark"; }
     static get LIGHT_MODE() { return "light"; }
+    static get ID() { return "mode-toggle"; }
 
     constructor() {
       if (this.hasMode) {
@@ -24,10 +22,10 @@
         }
       }
 
-      var self = this;
+      let self = this;
 
       /* always follow the system prefers */
-      this.sysDarkPrefers.addListener(function() {
+      this.sysDarkPrefers.addEventListener("change", () => {
         if (self.hasMode) {
           if (self.isDarkMode) {
             if (!self.isSysDarkPrefer) {
@@ -43,11 +41,33 @@
           self.clearMode();
         }
 
-        self.updateMermaid();
+        self.notify();
+
       });
 
     } /* constructor() */
 
+    get sysDarkPrefers() { return window.matchMedia("(prefers-color-scheme: dark)"); }
+
+    get isSysDarkPrefer() { return this.sysDarkPrefers.matches; }
+
+    get isDarkMode() { return this.mode === ModeToggle.DARK_MODE; }
+
+    get isLightMode() { return this.mode === ModeToggle.LIGHT_MODE; }
+
+    get hasMode() { return this.mode != null; }
+
+    get mode() { return sessionStorage.getItem(ModeToggle.MODE_KEY); }
+
+    /* get the current mode on screen */
+    get modeStatus() {
+      if (this.isDarkMode
+        || (!this.hasMode && this.isSysDarkPrefer)) {
+        return ModeToggle.DARK_MODE;
+      } else {
+        return ModeToggle.LIGHT_MODE;
+      }
+    }
 
     setDark() {
       $('html').attr(ModeToggle.MODE_KEY, ModeToggle.DARK_MODE);
@@ -64,82 +84,45 @@
       sessionStorage.removeItem(ModeToggle.MODE_KEY);
     }
 
-    get sysDarkPrefers() { return window.matchMedia("(prefers-color-scheme: dark)"); }
-
-    get isSysDarkPrefer() { return this.sysDarkPrefers.matches; }
-
-    get isDarkMode() { return this.mode == ModeToggle.DARK_MODE; }
-
-    get isLightMode() { return this.mode == ModeToggle.LIGHT_MODE; }
-
-    get hasMode() { return this.mode != null; }
-
-    get mode() { return sessionStorage.getItem(ModeToggle.MODE_KEY); }
-
-    /* get the current mode on screen */
-    get modeStatus() {
-      if (this.isDarkMode
-        || (!this.hasMode && this.isSysDarkPrefer) ) {
-        return ModeToggle.DARK_MODE;
-      } else {
-        return ModeToggle.LIGHT_MODE;
-      }
+    /* Notify another plugins that the theme mode has changed */
+    notify() {
+      window.postMessage({
+        direction: ModeToggle.ID,
+        message: this.modeStatus
+      }, "*");
     }
 
-    updateMermaid() {
-      if (typeof mermaid !== "undefined") {
-        let expectedTheme = (this.modeStatus === ModeToggle.DARK_MODE? "dark" : "default");
-        let config = { theme: expectedTheme };
-
-        /* re-render the SVG › <https://github.com/mermaid-js/mermaid/issues/311#issuecomment-332557344> */
-        $(".mermaid").each(function() {
-          let svgCode = $(this).prev().children().html();
-          $(this).removeAttr("data-processed");
-          $(this).html(svgCode);
-        });
-
-        mermaid.initialize(config);
-        mermaid.init(undefined, ".mermaid");
-      }
-    }
-
-    flipMode() {
-      if (this.hasMode) {
-        if (this.isSysDarkPrefer) {
-          if (this.isLightMode) {
-            this.clearMode();
-          } else {
-            this.setLight();
-          }
-
-        } else {
-          if (this.isDarkMode) {
-            this.clearMode();
-          } else {
-            this.setDark();
-          }
-        }
-
-      } else {
-        if (this.isSysDarkPrefer) {
-          this.setLight();
-        } else {
-          this.setDark();
-        }
-      }
-
-      this.updateMermaid();
-
-    } /* flipMode() */
-
   } /* ModeToggle */
 
-  let toggle = new ModeToggle();
+  const toggle = new ModeToggle();
 
-  $(".mode-toggle").click(function() {
+  function flipMode() {
+    if (toggle.hasMode) {
+      if (toggle.isSysDarkPrefer) {
+        if (toggle.isLightMode) {
+          toggle.clearMode();
+        } else {
+          toggle.setLight();
+        }
 
-    toggle.flipMode();
+      } else {
+        if (toggle.isDarkMode) {
+          toggle.clearMode();
+        } else {
+          toggle.setDark();
+        }
+      }
 
-  });
+    } else {
+      if (toggle.isSysDarkPrefer) {
+        toggle.setLight();
+      } else {
+        toggle.setDark();
+      }
+    }
+
+    toggle.notify();
+
+  } /* flipMode() */
 
 </script>

_includes/panel.html

@@ -1,57 +0,0 @@
-<!--
-  The Pannel on right side (Desktop views)
--->
-
-<div id="panel-wrapper" class="col-xl-3 pl-2 text-muted topbar-down">
-
-  <div class="access">
-
-  {% include update-list.html %}
-
-  {% if update_list.size > 0 %}
-
-    <div id="access-lastmod" class="post">
-      <span>{{- site.data.locales[site.lang].panel.lastmod | default: 'Recent Update' -}}</span>
-      <ul class="post-content pl-0 pb-1 ml-1 mt-2">
-
-      {% for item in update_list %}
-        {% assign index = item | split: "::" | last | plus: 0 %}
-        {% assign post = site.posts[index] %}
-        {% assign url = post.url | relative_url %}
-        <li><a href="{{ url }}">{{ post.title }}</a></li>
-      {% endfor %}
-
-      </ul>
-    </div> <!-- #access-lastmod -->
-
-  {% endif %}
-
-  {% include trending-tags.html %}
-
-  {% if trending_tags.size > 0 %}
-    <div id="access-tags">
-      <span>{{- site.data.locales[site.lang].panel.trending_tags | default: 'Trending Tags' -}}</span>
-      <div class="d-flex flex-wrap mt-3 mb-1 mr-3">
-
-      {% for tag_name in trending_tags %}
-        {% assign url = tag_name | slugify | url_encode | prepend: "/tags/" | append: "/" %}
-        <a class="post-tag" href="{{ url | relative_url }}">{{ tag_name }}</a>
-      {% endfor %}
-
-      </div>
-    </div>
-  {% endif %}
-  </div> <!-- .access -->
-
-  {% if include.toc %}
-    <!-- BS-toc.js will be loaded at medium priority -->
-    <script src="https://cdn.jsdelivr.net/gh/afeld/bootstrap-toc@1.0.1/dist/bootstrap-toc.min.js"></script>
-    <div id="toc-wrapper" class="pl-0 pr-4 mb-5">
-      <span class="pl-3 pt-2 mb-2">
-      {{- site.data.locales[site.lang].panel.toc | default: 'Contents' -}}
-      </span>
-      <nav id="toc" data-toggle="toc"></nav>
-    </div>
-  {% endif %}
-
-</div> <!-- #panel-wrapper -->

_includes/post-nav.html

@@ -5,24 +5,24 @@
 <div class="post-navigation d-flex justify-content-between">
   {% if page.previous.url %}
   <a href="{{ site.baseurl }}{{ page.previous.url }}" class="btn btn-outline-primary"
-    prompt="{{ site.data.locales[site.lang].post.button.previous | default: 'previous' }}">
+    prompt="{{ site.data.locales[lang].post.button.previous }}">
     <p>{{ page.previous.title }}</p>
   </a>
   {% else %}
   <span class="btn btn-outline-primary disabled"
-    prompt="{{ site.data.locales[site.lang].post.button.previous | default: 'previous' }}">
+    prompt="{{ site.data.locales[lang].post.button.previous }}">
     <p>-</p>
   </span>
   {% endif %}
 
   {% if page.next.url %}
   <a href="{{ site.baseurl }}{{page.next.url}}" class="btn btn-outline-primary"
-    prompt="{{ site.data.locales[site.lang].post.button.next | default: 'next' }}">
+    prompt="{{ site.data.locales[lang].post.button.next }}">
     <p>{{ page.next.title }}</p>
   </a>
   {% else %}
   <span class="btn btn-outline-primary disabled"
-    prompt="{{ site.data.locales[site.lang].post.button.next | default: 'next' }}">
+    prompt="{{ site.data.locales[lang].post.button.next }}">
     <p>-</p>
   </span>
   {% endif %}

_includes/post-sharing.html

@@ -3,7 +3,7 @@
 -->
 
 <div class="share-wrapper">
-  <span class="share-label text-muted mr-1">{{ site.data.locales[site.lang].post.share | default: 'Share' }}</span>
+  <span class="share-label text-muted mr-1">{{ site.data.locales[lang].post.share }}</span>
   <span class="share-icons">
     {% capture title %}{{ page.title }} - {{ site.title }}{% endcapture %}
     {% assign url = page.url | absolute_url %}
@@ -16,9 +16,10 @@
         </a>
     {% endfor %}
 
-    <i class="fa-fw fas fa-link small" onclick="copyLink('', '{{ site.data.locales[site.lang].post.button.copy.succeed }}')"
+    <i id="copy-link" class="fa-fw fas fa-link small"
         data-toggle="tooltip" data-placement="top"
-        title="{{ site.data.locales[site.lang].post.button.copy.title }}">
+        title="{{ site.data.locales[lang].post.button.share_link.title }}"
+        title-succeed="{{ site.data.locales[lang].post.button.share_link.succeed }}">
     </i>
 
   </span>

_includes/read-time.html

@@ -16,14 +16,15 @@
 {% endunless %}
 
 {% capture read_prompt %}
-  {{- site.data.locales[site.lang].post.read_time.prompt | default: "read" -}}
+  {{- site.data.locales[lang].post.read_time.prompt -}}
 {% endcapture %}
 
 <!-- return element -->
 <span class="readtime" data-toggle="tooltip" data-placement="bottom"
-  title="{{ words }} {{ site.data.locales[site.lang].post.words | default: "words" }}">
-  {{- read_time -}}{{" "}}{{- site.data.locales[site.lang].post.read_time.unit | default: "min" -}}
+  title="{{ words }} {{ site.data.locales[lang].post.words }}">
+  <em>{{- read_time -}}{{" "}}{{- site.data.locales[lang].post.read_time.unit -}}</em>
   {%- if include.prompt -%}
-    {% unless site.lang contains 'zh' %}{{" "}}{% endunless %}{{ read_prompt }}
+    {%- assign _prompt_words = read_prompt | number_of_words: 'auto' -%}
+    {%- unless _prompt_words > 1 -%}{{ " " }}{%- endunless -%}{{ read_prompt }}
   {%- endif -%}
 </span>

_includes/refactor-content.html

@@ -38,63 +38,101 @@
   %}
 {% endif %}
 
-
 <!-- images -->
 
-{% if _content contains '<img src="' %}
-
-  <!-- add CDN prefix if it exists -->
-
-  {% if site.img_cdn != '' %}
-    {% assign img_path_replacement = '<img src="' | append: site.img_cdn | append: '/' %}
-  {% else %}
-    {% assign img_path_replacement = '<img src="' | append: site.baseurl | append: '/' %}
-  {% endif %}
-
-  {% assign _content = _content | replace: '<img src="/', img_path_replacement %}
-
-  <!-- lazy-load images <https://github.com/ApoorvSaxena/lozad.js#usage> -->
-
-  {% assign _content = _content | replace: '<img src="', '<img data-proofer-ignore data-src="' %}
-
-  <!-- add image placehoder to prevent layout reflow -->
+{% assign IMG_TAG = '<img ' %}
 
+{% if _content contains IMG_TAG %}
   {% assign _img_content = nil %}
+  {% assign _img_snippets = _content | split: IMG_TAG %}
 
-  {% assign _images = _content | split: '<img ' %}
-
-  {% for _img in _images %}
+  {% for _img_snippet in _img_snippets %}
     {% if forloop.first %}
-      {% assign _img_content = _img %}
+      {% assign _img_content = _img_snippet %}
       {% continue %}
     {% endif %}
 
     {% assign _width = nil %}
     {% assign _height = nil %}
-    {% assign _attrs = _img | split: '>' | first | split: ' ' %}
+    {% assign _src = nil %}
+
+    {% assign _left = _img_snippet | split: '>' | first %}
+    {% assign _right = _img_snippet | remove: _left %}
+
+    {% assign _left = _left | remove: ' /' %}
+    {% assign _left = _left | replace: ' w=', ' width=' | replace: ' h=', ' height=' %}
+    {% assign _attrs = _left | split: ' ' %}
 
     {% for _attr in _attrs %}
-      {% capture _key %}{{ _attr | split: '=' | first }}{% endcapture %}
-      {% capture _value %}{{ _attr | split: '=' | last | replace: '"', '' }}{% endcapture %}
+      {% assign _pair = _attr | split: '=' %}
+      {% if _pair.size < 2 %}
+        {% continue %}
+      {% endif %}
+
+      {% capture _key %}{{ _pair | first }}{% endcapture %}
+      {% capture _value %}{{ _pair | last | replace: '"', '' }}{% endcapture %}
 
       {% case _key %}
         {% when 'width' %}
           {% assign _width = _value %}
         {% when 'height' %}
           {% assign _height = _value %}
+        {% when 'src' %}
+          {% assign _src = _value %}
       {% endcase %}
 
-      {% if _width and _height %}
-        {% capture _svg %}data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 {{_width}} {{_height}}'%3E%3C/svg%3E{% endcapture %}
-        {% assign _img_content = _img_content | append: '<img src="' | append: _svg | append: '" ' | append: _img %}
+      {% if _width and _height and _src %}
         {% break %}
       {% endif %}
-
     {% endfor %}
 
-    {% unless _width and _height %}
-      {% assign _img_content = _img_content | append: '<img ' | append: _img %}
-    {% endunless %}
+    {% if _src %}
+      {% unless _src contains '://' %}
+
+        <!-- Add CDN URL -->
+        {% if site.img_cdn %}
+          {% assign _src_prefix = site.img_cdn %}
+        {% else %}
+          {% assign _src_prefix = site.baseurl %}
+        {% endif %}
+
+        <!-- Add image path -->
+        {% if page.img_path %}
+          {% assign _path = page.img_path %}
+          {% assign last_char = _path | slice: -1 %}
+
+          {% unless last_char == '/' %}
+            {% assign _path = _path | append: '/' %}
+          {% endunless %}
+
+          {% assign _src_prefix = _src_prefix | append: _path %}
+        {% endif %}
+
+        {% assign _final_src = _src_prefix | append: _src %}
+        {% assign _left = _left | replace: _src, _final_src %}
+
+      {% endunless %}
+
+      <!-- lazy-load images <https://github.com/ApoorvSaxena/lozad.js#usage> -->
+
+      {% assign _left = _left | replace: 'src=', 'data-src=' %}
+
+    {% endif %}
+
+    <!-- Add SVG placehoder to prevent layout reflow -->
+
+    {% if _width and _height %}
+      {%- capture _svg -%}
+        src="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 {{ _width }} {{ _height }}'%3E%3C/svg%3E"
+      {%- endcapture -%}
+
+      {% assign _left =  _svg | append: ' ' | append: _left %}
+    {% endif %}
+
+    <!-- Bypass the HTML-proofer test -->
+    {% assign _left = _left | append: ' data-proofer-ignore' %}
+
+    {% assign _img_content = _img_content | append: IMG_TAG | append: _left | append: _right %}
 
   {% endfor %}
 
@@ -102,28 +140,90 @@
 
 {% endif %}
 
-<!-- Add lang-badge for code snippets -->
+<!-- Add header for code snippets -->
 
-{% if _content contains '<div class="language-' %}
-  {% assign _code_splits = _content | split: '<div class="language-' %}
-  {% assign _new_content = nil %}
+{% if _content contains '<div class="highlight"><code>' %}
+  {% assign _code_spippets = _content | split: '<div class="highlight"><code>' %}
+  {% assign _new_content = '' %}
+
+  {% for _snippet in _code_spippets %}
+
+    {% if forloop.last %}
+      {% assign _new_content = _new_content | append: _snippet %}
 
-  {% for _snippet in _code_splits %}
-    {% if forloop.first %}
-      {% assign _new_content = _snippet %}
     {% else %}
-      {% assign _lang = _snippet | split: ' ' | first %}
-      {% capture _tag_head %}<div lang="{{_lang}}" class="language-{% endcapture %}
-      {% assign _new_content = _new_content | append: _tag_head | append: _snippet %}
+
+      {% assign _left = _snippet | split: '><' | last%}
+
+      {% if _left contains 'file="' %}
+        {% assign _label_text = _left | split: 'file="' | last | split: '"' | first %}
+        {% assign _label_icon = 'far fa-file-code' %}
+      {% else %}
+        {% assign _lang = _left | split: 'language-' | last | split: ' ' | first %}
+        {% capture _label_text %}{% include language-alias.html language=_lang %}{% endcapture %}
+        {% assign _label_icon = 'fas fa-code small' %}
+      {% endif %}
+
+      {% capture _label %}
+        <span label-text="{{ _label_text | strip }}"><i class="{{ _label_icon }}"></i></span>
+      {% endcapture %}
+
+      {% assign _new_content = _new_content | append: _snippet
+          | append: '<div class="code-header">'
+          | append: _label
+          | append: '<button aria-label="copy" title-succeed="'
+          | append: site.data.locales[lang].post.button.copy_code.succeed
+          | append: '"><i class="far fa-clipboard"></i></button></div>'
+          | append: '<div class="highlight"><code>'
+      %}
+
     {% endif %}
+
   {% endfor %}
 
-  {% if _new_content %}
-    {% assign _content = _new_content %}
-  {% endif %}
+  {% assign _content = _new_content %}
 
 {% endif %}
 
+<!-- Create heading anchors -->
+
+{% assign heading_levels = '2,3,4,5' | split: ',' %}
+{% assign _heading_content = _content %}
+
+{% for level in heading_levels %}
+  {% capture mark_start %}<h{{ level }} id="{% endcapture %}
+  {% capture mark_end %}</h{{ level }}>{% endcapture %}
+
+  {% if _heading_content contains mark_start %}
+    {% assign _new_content = nil %}
+    {% assign heading_snippets = _heading_content | split: mark_start %}
+
+    {% for snippet in heading_snippets %}
+      {% if forloop.first %}
+        {% assign _new_content = snippet %}
+        {% continue %}
+      {% endif %}
+
+      {% assign id = snippet | split: '"' | first %}
+      {% capture anchor %}<a href="#{{ id }}" class="anchor"><i class="fas fa-hashtag"></i></a>{% endcapture %}
+
+      {% assign left = snippet | split: mark_end | first %}
+      {% assign _start_index = left | size %}
+      {% assign _end_index = snippet | size | minus: 1 %}
+      {% assign right = snippet | slice: _start_index, _end_index %}
+
+      {% assign _new_content = _new_content | append: mark_start
+          | append: left | append: anchor | append: mark_end | append: right
+      %}
+
+    {% endfor %}
+
+    {% assign _heading_content = _new_content %}
+
+  {% endif %}
+{% endfor %}
+
+{% assign _content = _heading_content %}
 
 <!-- return -->
 

_includes/related-posts.html

@@ -81,7 +81,7 @@
 {% if index_list.size > 0 %}
   <div id="related-posts" class="mt-5 mb-2 mb-sm-4">
     <h3 class="pt-2 mt-1 mb-4 ml-1"
-      data-toc-skip>{{ site.data.locales[site.lang].post.relate_posts | default: 'Further Reading' }}</h3>
+      data-toc-skip>{{ site.data.locales[lang].post.relate_posts }}</h3>
     <div class="card-deck mb-4">
     {% for entry in index_list %}
       {% assign index = entry | plus: 0 %}
@@ -94,7 +94,7 @@
             <div class="text-muted small">
               <p>
                 {% include no-linenos.html content=post.content %}
-                {{ content | markdownify | strip_html | truncate: 200 }}
+                {{ content | markdownify | strip_html | truncate: 200 | escape }}
               </p>
             </div>
           </div>

_includes/search-loader.html

@@ -5,7 +5,7 @@
 
 {% capture result_elem %}
 <div class="pl-1 pr-1 pl-sm-2 pr-sm-2 pl-lg-4 pr-lg-4 pl-xl-0 pr-xl-0">
-  <a href="{{ site.url }}{url}">{title}</a>
+  <a href="{url}">{title}</a>
   <div class="post-meta d-flex flex-column flex-sm-row text-muted mt-1 mb-1">
     {categories}
     {tags}
@@ -14,9 +14,9 @@
 </div>
 {% endcapture %}
 
-{% capture not_found %}<p class="mt-5">Oops! No result founds.</p>{% endcapture %}
+{% capture not_found %}<p class="mt-5">{{ site.data.locales[lang].search.no_results }}</p>{% endcapture %}
 
-<script src="https://cdn.jsdelivr.net/npm/simple-jekyll-search@1.7.3/dest/simple-jekyll-search.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/simple-jekyll-search@1.10.0/dest/simple-jekyll-search.min.js"></script>
 
 <script>
 SimpleJekyllSearch({

_includes/search-results.html

@@ -4,15 +4,7 @@
 <div id="search-result-wrapper" class="d-flex justify-content-center unloaded">
   <div class="col-12 col-sm-11 post-content">
     <div id="search-hints">
-      <h4 class="text-muted mb-4">{{ site.data.locales[site.lang].panel.trending_tags | default: 'Trending Tags' }}</h4>
-
       {% include trending-tags.html %}
-
-      {% for tag in trending_tags %}
-        {% capture url %}/tags/{{ tag | slugify | url_encode }}/{% endcapture %}
-        <a class="post-tag" href="{{ url | relative_url }}">{{ tag | replace: '-', ' ' }}</a>
-      {% endfor %}
-
     </div>
     <div id="search-results" class="d-flex flex-wrap justify-content-center text-muted mt-3"></div>
   </div>

_includes/sidebar.html

@@ -6,16 +6,18 @@
   <div class="profile-wrapper text-center">
     <div id="avatar">
       <a href="{{ '/' | relative_url }}" alt="avatar" class="mx-auto">
-        {% capture avatar_url %}
-          {%- if site.avatar contains '://' -%}
-            {{ site.avatar }}
-          {%- elsif site.img_cdn != '' and site.img_cdn -%}
-            {{ site.avatar | prepend: site.img_cdn }}
-          {%- else -%}
-            {{ site.avatar | relative_url }}
-          {%- endif -%}
-        {% endcapture %}
-        <img src="{{ avatar_url }}" alt="avatar" onerror="this.style.display='none'">
+        {% if site.avatar != '' and site.avatar %}
+          {% capture avatar_url %}
+            {%- if site.avatar contains '://' -%}
+              {{ site.avatar }}
+            {%- elsif site.img_cdn != '' and site.img_cdn -%}
+              {{ site.avatar | prepend: site.img_cdn }}
+            {%- else -%}
+              {{ site.avatar | relative_url }}
+            {%- endif -%}
+          {% endcapture %}
+          <img src="{{ avatar_url }}" alt="avatar" onerror="this.style.display='none'">
+        {% endif %}
       </a>
     </div>
 
@@ -32,7 +34,7 @@
     <li class="nav-item{% if page.layout == 'home' %}{{ " active" }}{% endif %}">
       <a href="{{ '/' | relative_url }}" class="nav-link">
         <i class="fa-fw fas fa-home ml-xl-3 mr-xl-3 unloaded"></i>
-        <span>{{ site.data.locales[site.lang].tabs.home | default: "home" | upcase }}</span>
+        <span>{{ site.data.locales[lang].tabs.home | upcase }}</span>
       </a>
     </li>
     <!-- the real tabs -->
@@ -42,14 +44,24 @@
         <i class="fa-fw {{ tab.icon }} ml-xl-3 mr-xl-3 unloaded"></i>
         {% capture tab_name %}{{ tab.url | split: '/' }}{% endcapture %}
 
-        <span>{{ site.data.locales[site.lang].tabs.[tab_name] | default: tab_name | upcase }}</span>
+        <span>{{ site.data.locales[lang].tabs.[tab_name] | default: tab.title | upcase }}</span>
       </a>
     </li> <!-- .nav-item -->
     {% endfor %}
 
   </ul> <!-- ul.nav.flex-column -->
 
-  <div class="sidebar-bottom mt-auto d-flex flex-wrap justify-content-center">
+  <div class="sidebar-bottom mt-auto d-flex flex-wrap justify-content-center align-items-center">
+
+    {% unless site.theme_mode %}
+      <button class="mode-toggle btn" aria-label="Switch Mode">
+        <i class="fas fa-adjust"></i>
+      </button>
+
+      {% if site.data.contact.size > 0 %}
+        <span class="icon-border"></span>
+      {% endif %}
+    {% endunless %}
 
     {% for entry in site.data.contact %}
       {% capture url %}
@@ -69,7 +81,6 @@
 
       {% if url %}
       <a href="{{ url }}" aria-label="{{ entry.type }}"
-        {% unless site.theme_mode %}class="order-{{ forloop.index | plus: 2 }}"{% endunless %}
         {% unless entry.noblank %}target="_blank" rel="noopener"{% endunless %}>
         <i class="{{ entry.icon }}"></i>
       </a>
@@ -77,16 +88,6 @@
 
     {% endfor %}
 
-    {% unless site.theme_mode %}
-      {% if site.data.contact.size > 0 %}
-        <span class="icon-border order-2"></span>
-      {% endif %}
-
-      <span id="mode-toggle-wrapper" class="order-1">
-        {% include mode-toggle.html %}
-      </span>
-    {% endunless %}
-
   </div> <!-- .sidebar-bottom -->
 
 </div><!-- #sidebar -->

_includes/timeago.html

@@ -1,27 +1,26 @@
 <!--
   Date format snippet
-  See: /assets/js/_utils/timeage.js
+  See: ${JS_ROOT}/utils/timeago.js
 -->
 
-{% assign tooltip_df = site.data.locales[site.lang].date_format.tooltip | default: '%a, %b %e, %Y, %l:%M %p %z' %}
-{% assign post_long_df = site.data.locales[site.lang].date_format.post.long | default: '%b %e, %Y' %}
-{% assign post_short_df = site.data.locales[site.lang].date_format.post.short | default: '%b %e' %}
+{% assign tooltip_df = site.data.locales[lang].date_format.tooltip %}
+{% assign post_long_df = site.data.locales[lang].date_format.post.long %}
+{% assign post_short_df = site.data.locales[lang].date_format.post.short %}
+
+<em class="timeago{% if include.class %} {{ include.class }}{% endif %}"
+    date="{{ include.date }}"
+    {% if include.tooltip %}
+      data-toggle="tooltip"
+      data-placement="bottom"
+      title="{{ include.date | date: tooltip_df }}"
+    {% endif %}>
 
-{% if include.preposition %}
-  {{ include.preposition }}
-{% endif %}
-<span class="timeago {% if include.class %}{{ include.class }}{% endif %}"
-  {% if include.tooltip %}
-    data-toggle="tooltip"
-    data-placement="bottom"
-    title="{{ include.date | date: tooltip_df }}"
-  {% endif %}>
   {%- assign this_year = site.time | date: "%Y" -%}
   {%- assign post_year = include.date | date: "%Y" -%}
+
   {%- if post_year == this_year -%}
     {{ include.date | date: post_short_df }}
   {%- else -%}
     {{ include.date | date: post_long_df }}
   {%- endif -%}
-  <i class="unloaded">{{ include.date | date_to_xmlschema }}</i>
-</span>
+</em>

_includes/toc.html

@@ -0,0 +1,16 @@
+{% assign enable_toc = false %}
+{% if site.toc and page.toc %}
+  {% if page.content contains '<h2' or page.content contains '<h3' %}
+    {% assign enable_toc = true %}
+  {% endif %}
+{% endif %}
+
+{% if enable_toc %}
+<!-- BS-toc.js will be loaded at medium priority -->
+<script src="https://cdn.jsdelivr.net/gh/afeld/bootstrap-toc@1.0.1/dist/bootstrap-toc.min.js"></script>
+
+<div id="toc-wrapper" class="pl-0 pr-4 mb-5">
+  <div class="panel-heading pl-3 pt-2 mb-2">{{- site.data.locales[lang].panel.toc -}}</div>
+  <nav id="toc" data-toggle="toc"></nav>
+</div>
+{% endif %}

_includes/topbar.html

@@ -10,7 +10,7 @@
 
     {% if paths.size == 0 or page.layout == 'home' %}
       <!-- index page -->
-      <span>{{ site.data.locales[site.lang].tabs.home | default: 'home' | capitalize }}</span>
+      <span>{{ site.data.locales[lang].tabs.home | capitalize }}</span>
 
     {% else %}
 
@@ -19,28 +19,24 @@
         {% if forloop.first %}
           <span>
             <a href="{{ '/' | relative_url }}">
-              {{ site.data.locales[site.lang].tabs.home | default: 'home' | capitalize }}
+              {{ site.data.locales[lang].tabs.home | capitalize }}
             </a>
           </span>
 
         {% elsif forloop.last %}
 
           {% if page.collection == 'tabs' %}
-            <span>{{ site.data.locales[site.lang].tabs[item] | default: page.title }}</span>
+            <span>{{ site.data.locales[lang].tabs[item] | default: page.title }}</span>
           {% else %}
             <span>{{ page.title }}</span>
           {% endif %}
 
-        {% else %}
-
-          {% unless page.layout == 'post' %}
-            <span>
-              <a href="{{ item | relative_url }}">
-                {{ site.data.locales[site.lang].tabs[item] | default: page.title }}
-              </a>
-            </span>
-          {% endunless %}
-
+        {% elsif page.layout == 'category' or page.layout == 'tag' %}
+          <span>
+            <a href="{{ item | relative_url }}">
+              {{ site.data.locales[lang].tabs[item] | default: page.title }}
+            </a>
+          </span>
         {% endif %}
 
       {% endfor %}
@@ -53,12 +49,12 @@
 
     <div id="topbar-title">
       {% if page.layout == 'home' %}
-        {{- site.data.locales[site.lang].title | default: site.title -}}
-      {% elsif page.collection == 'tabs' %}
+        {{- site.data.locales[lang].title | default: site.title -}}
+      {% elsif page.collection == 'tabs' or page.dynamic_title %}
         {%- capture tab_key -%}{{ page.url | split: '/' }}{%- endcapture -%}
-        {{- site.data.locales[site.lang].tabs[tab_key] | default: page.title -}}
+        {{- site.data.locales[lang].tabs[tab_key] | default: page.title -}}
       {% else %}
-        {{- site.data.locales[site.lang].layout[page.layout] | default: page.layout | capitalize -}}
+        {{- site.data.locales[lang].layout[page.layout] | default: page.layout | capitalize -}}
       {% endif %}
     </div>
 
@@ -66,10 +62,10 @@
     <span id="search-wrapper" class="align-items-center">
       <i class="fas fa-search fa-fw"></i>
       <input class="form-control" id="search-input" type="search"
-        aria-label="search" autocomplete="off" placeholder="{{ site.data.locales[site.lang].search.hint | default: 'Search' | capitalize }}...">
+        aria-label="search" autocomplete="off" placeholder="{{ site.data.locales[lang].search.hint | capitalize }}...">
       <i class="fa fa-times-circle fa-fw" id="search-cleaner"></i>
     </span>
-    <span id="search-cancel" >{{ site.data.locales[site.lang].search.cancel | default: 'Cancel' }}</span>
+    <span id="search-cancel" >{{ site.data.locales[lang].search.cancel }}</span>
   </div>
 
 </div>

_includes/trending-tags.html

@@ -34,3 +34,17 @@
     {% endif %}
   {% endfor %}
 {% endfor %}
+
+{% if trending_tags.size > 0 %}
+  <div id="access-tags">
+    <div class="panel-heading">{{- site.data.locales[lang].panel.trending_tags -}}</div>
+    <div class="d-flex flex-wrap mt-3 mb-1 mr-3">
+
+    {% for tag_name in trending_tags %}
+      {% assign url = tag_name | slugify | url_encode | prepend: "/tags/" | append: "/" %}
+      <a class="post-tag" href="{{ url | relative_url }}">{{ tag_name }}</a>
+    {% endfor %}
+
+    </div>
+  </div>
+{% endif %}

_includes/update-list.html

@@ -22,3 +22,19 @@
 {% for entry in all_list limit:MAX_SIZE %}
   {% assign update_list = update_list | push: entry %}
 {% endfor %}
+
+{% if update_list.size > 0 %}
+
+  <div id="access-lastmod" class="post">
+    <div class="panel-heading">{{- site.data.locales[lang].panel.lastmod -}}</div>
+    <ul class="post-content pl-0 pb-1 ml-1 mt-2">
+      {% for item in update_list %}
+        {% assign index = item | split: "::" | last | plus: 0 %}
+        {% assign post = site.posts[index] %}
+        {% assign url = post.url | relative_url %}
+      <li><a href="{{ url }}">{{ post.title }}</a></li>
+      {% endfor %}
+    </ul>
+  </div> <!-- #access-lastmod -->
+
+{% endif %}

_javascript/commons/mode-toggle.js

@@ -0,0 +1,13 @@
+/*
+ * Listener for theme mode toggle
+ */
+$(function() {
+  $(".mode-toggle").click((e) => {
+    const $target = $(e.target);
+    let $btn = ($target.prop("tagName") === "button".toUpperCase() ?
+      $target : $target.parent());
+
+    $btn.blur(); // remove the clicking outline
+    flipMode();
+  });
+});

_javascript/commons/topbar-switch.js

@@ -3,50 +3,51 @@
  */
 
 $(function() {
+  const $topbarWrapper = $("#topbar-wrapper");
+  const $topbarTitle = $("#topbar-title");
+  const $panel = $("#panel-wrapper");
+  const $searchInput = $("#search-input");
 
-  const topbarWrapper = $("#topbar-wrapper");
-  const toc = $("#toc-wrapper");
-  const access = $(".access");
-  const searchInput = $("#search-input");
+  const CLASS_TOPBAR_UP = "topbar-up";
+  const CLASS_TOPBAR_DOWN = "topbar-down";
+  const ATTR_TOC_SCROLLING_UP = "toc-scrolling-up"; // topbar locked
 
   let didScroll;
   let lastScrollTop = 0;
 
-  const delta = 5;
-  const topbarHeight = topbarWrapper.outerHeight();
+  const delta = $topbarWrapper.outerHeight();
+  const topbarHeight = $topbarWrapper.outerHeight();
 
   function hasScrolled() {
-    var st = $(this).scrollTop();
+    let st = $(this).scrollTop();
 
     /* Make sure they scroll more than delta */
     if (Math.abs(lastScrollTop - st) <= delta) {
       return;
     }
 
-    if (st > lastScrollTop && st > topbarHeight) {
-      /* Scroll Down */
-      topbarWrapper.removeClass("topbar-down").addClass("topbar-up");
+    if (st > lastScrollTop ) { // Scroll Down
+      if (st > topbarHeight) {
+        $topbarWrapper.removeClass(CLASS_TOPBAR_DOWN).addClass(CLASS_TOPBAR_UP);
+        $panel.removeClass(CLASS_TOPBAR_DOWN);
 
-      if (toc.length > 0) {
-        toc.removeClass("topbar-down");
+        if ($searchInput.is(":focus")) {
+          $searchInput.blur(); /* remove focus */
+        }
       }
+    } else  {// Scroll up
+      // did not reach the bottom of the document, i.e., still have space to scroll up
+      if (st + $(window).height() < $(document).height()) {
+        let tocScrollingUp = $topbarWrapper.attr(ATTR_TOC_SCROLLING_UP);
+        if (typeof tocScrollingUp !== "undefined") {
+          if (tocScrollingUp === "false") {
+            $topbarWrapper.removeAttr(ATTR_TOC_SCROLLING_UP);
+          }
 
-      if (access.length > 0) {
-        access.removeClass("topbar-down");
-      }
-
-      if (searchInput.is(":focus")) {
-        searchInput.blur(); /* remove focus */
-      }
-
-    } else if (st + $(window).height() < $(document).height()) {
-      /* Scroll Up */
-      topbarWrapper.removeClass("topbar-up").addClass("topbar-down");
-      if (toc.length > 0) {
-        toc.addClass("topbar-down");
-      }
-      if (access.length > 0) {
-        access.addClass("topbar-down");
+        } else {
+          $topbarWrapper.removeClass(CLASS_TOPBAR_UP).addClass(CLASS_TOPBAR_DOWN);
+          $panel.addClass(CLASS_TOPBAR_DOWN);
+        }
       }
     }
 
@@ -54,7 +55,7 @@ $(function() {
   }
 
   $(window).scroll(function(event) {
-    if ($("#topbar-title").is(":hidden")) { /* Not in small screens */
+    if ($topbarTitle.is(":hidden")) {
       didScroll = true;
     }
   });

_javascript/commons/topbar-title.js

@@ -1,46 +1,61 @@
 /*
- * Top bar title auto change while scrolling in mobile screens.
+ * Top bar title auto change while scrolling up/down in mobile screens.
 */
 
 $(function() {
+  const titleSelector = "div.post>h1:first-of-type";
+  const $pageTitle = $(titleSelector);
+  const $topbarTitle = $("#topbar-title");
 
-  const topbarTitle = $("#topbar-title");
-  const postTitle = $("div.post>h1");
+  if ($pageTitle.length === 0 /* on Home page */
+      || $pageTitle.hasClass("dynamic-title")
+      || $topbarTitle.is(":hidden")) {/* not in mobile views */
+    return;
+  }
 
-  const DEFAULT = topbarTitle.text().trim();
-
-  let title = (postTitle.length > 0) ?
-    postTitle.text().trim() : $("h1").text().trim();
+  const defaultTitleText = $topbarTitle.text().trim();
+  let titleText = $pageTitle.text().trim();
+  let hasScrolled = false;
+  let lastScrollTop = 0;
 
   if ($("#page-category").length || $("#page-tag").length) {
     /* The title in Category or Tag page will be "<title> <count_of_posts>" */
-    if (/\s/.test(title)) {
-      title = title.replace(/[0-9]/g, "").trim();
+    if (/\s/.test(titleText)) {
+      titleText = titleText.replace(/[0-9]/g, "").trim();
     }
   }
 
-  /* Replace topbar title while scroll screens. */
-  $(window).scroll(function () {
-    if ($("#post-list").length /* in Home page */
-      || postTitle.is(":hidden") /* is tab pages */
-      || topbarTitle.is(":hidden") /* not mobile screens */
-      || $("#sidebar.sidebar-expand").length) { /* when the sidebar trigger is clicked */
-      return false;
+  let options = {
+    rootMargin: '-48px 0px 0px 0px', // 48px equals to the topbar height (3rem)
+    threshold: [0, 1]
+  };
+
+  let observer = new IntersectionObserver((entries) => {
+    if (!hasScrolled) {
+      hasScrolled = true;
+      return;
     }
 
-    if ($(this).scrollTop() >= 95) {
-      if (topbarTitle.text() !== title) {
-        topbarTitle.text(title);
+    let curScrollTop = $(window).scrollTop();
+    let isScrollDown = lastScrollTop < curScrollTop;
+    lastScrollTop = curScrollTop;
+    let heading = entries[0];
+
+    if (isScrollDown) {
+      if (heading.intersectionRatio === 0) {
+        $topbarTitle.text(titleText);
       }
     } else {
-      if (topbarTitle.text() !== DEFAULT) {
-        topbarTitle.text(DEFAULT);
+      if (heading.intersectionRatio === 1) {
+        $topbarTitle.text(defaultTitleText);
       }
     }
-  });
+  }, options);
 
-  /* Click title remove hover effect. */
-  topbarTitle.click(function() {
+  observer.observe(document.querySelector(titleSelector));
+
+  /* Click title will scroll to top */
+  $topbarTitle.click(function() {
     $("body,html").animate({scrollTop: 0}, 800);
   });
 

_javascript/copyright

@@ -1,5 +1,5 @@
 /*!
- * Chirpy v4.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v5.0.2 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */

_javascript/utils/clipboard.js

@@ -0,0 +1,131 @@
+/*
+ * Clipboard functions
+ *
+ * Dependencies:
+ *   - popper.js (https://github.com/popperjs/popper-core)
+ *   - clipboard.js (https://github.com/zenorocha/clipboard.js)
+ */
+
+$(function() {
+  const btnSelector = '.code-header>button';
+  const ICON_SUCCESS = 'fas fa-check';
+  const ATTR_TIMEOUT = 'timeout';
+  const TIMEOUT = 2000; // in milliseconds
+
+  function isLocked(node) {
+    if ($(node)[0].hasAttribute(ATTR_TIMEOUT)) {
+      let timeout = $(node).attr(ATTR_TIMEOUT);
+      if (Number(timeout) > Date.now()) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  function lock(node) {
+    $(node).attr(ATTR_TIMEOUT, Date.now() + TIMEOUT);
+  }
+
+  function unlock(node) {
+    $(node).removeAttr(ATTR_TIMEOUT);
+  }
+
+  /* --- Copy code block --- */
+
+  // Initial the clipboard.js object
+  const clipboard = new ClipboardJS(btnSelector, {
+    target(trigger) {
+      let codeBlock = trigger.parentNode.nextElementSibling;
+      return codeBlock.querySelector('code .rouge-code');
+    }
+  });
+
+  $(btnSelector).tooltip({
+    trigger: 'hover',
+    placement: 'left'
+  });
+
+  function getIcon(btn) {
+    let iconNode = $(btn).children();
+    return iconNode.attr('class');
+  }
+
+  const ICON_DEFAULT = getIcon(btnSelector);
+
+  function showTooltip(btn) {
+    const succeedTitle = $(btn).attr('title-succeed');
+    $(btn).attr('data-original-title', succeedTitle).tooltip('show');
+  }
+
+  function hideTooltip(btn) {
+    $(btn).tooltip('hide').removeAttr('data-original-title');
+  }
+
+  function setSuccessIcon(btn) {
+    let btnNode = $(btn);
+    let iconNode = btnNode.children();
+    iconNode.attr('class', ICON_SUCCESS);
+  }
+
+  function resumeIcon(btn) {
+    let btnNode = $(btn);
+    let iconNode = btnNode.children();
+    iconNode.attr('class', ICON_DEFAULT);
+  }
+
+  clipboard.on('success', (e) => {
+    e.clearSelection();
+
+    const trigger = e.trigger;
+    if (isLocked(trigger)) {
+      return;
+    }
+
+    setSuccessIcon(trigger);
+    showTooltip(trigger);
+    lock(trigger);
+
+    setTimeout(() => {
+      hideTooltip(trigger);
+      resumeIcon(trigger);
+      unlock(trigger);
+    }, TIMEOUT);
+
+  });
+
+  /* --- Post link sharing --- */
+
+  $('#copy-link').click((e) => {
+
+    let target = $(e.target);
+
+    if (isLocked(target)) {
+      return;
+    }
+
+    // Copy URL to clipboard
+
+    const url = window.location.href;
+    const $temp = $("<input>");
+
+    $("body").append($temp);
+    $temp.val(url).select();
+    document.execCommand("copy");
+    $temp.remove();
+
+    // Switch tooltip title
+
+    const defaultTitle = target.attr('data-original-title');
+    const succeedTitle = target.attr('title-succeed');
+
+    target.attr('data-original-title', succeedTitle).tooltip('show');
+    lock(target);
+
+    setTimeout(() => {
+      target.attr('data-original-title', defaultTitle);
+      unlock(target);
+    }, TIMEOUT);
+
+  });
+
+});

_javascript/utils/copy-link.js

@@ -1,22 +0,0 @@
-/*
- * Copy current page url to clipboard.
- */
-
-function copyLink(url, msg) {
-  if (!url || 0 === url.length) {
-    url = window.location.href;
-  }
-
-  const $temp = $("<input>");
-  $("body").append($temp);
-  $temp.val(url).select();
-  document.execCommand("copy");
-  $temp.remove();
-
-  let feedback = "Link copied successfully!";
-  if (msg && msg.length > 0) {
-    feedback = msg;
-  }
-
-  alert(feedback);
-}

_javascript/utils/smooth-scroll.js

@@ -8,74 +8,105 @@
 */
 
 $(function() {
+  const $topbarWrapper = $("#topbar-wrapper");
+  const topbarHeight = $topbarWrapper.outerHeight();
+  const $topbarTitle = $("#topbar-title");
+
+  const ATTR_TOC_SCROLLING = "toc-scrolling-up";
+  const SCROLL_MARK = "scroll-focus";
+  const REM = 16; // in pixels
+  let tocScrollUpCount = 0;
+
   $("a[href*='#']")
     .not("[href='#']")
     .not("[href='#0']")
     .click(function(event) {
 
-      if (this.pathname.replace(/^\//, "") === location.pathname.replace(/^\//, "")) {
-        if (location.hostname === this.hostname) {
+      if (this.pathname.replace(/^\//, "") !== location.pathname.replace(/^\//, "")) {
+        return;
+      }
 
-          const REM = 16; /* 16px */
+      if (location.hostname !== this.hostname) {
+        return;
+      }
 
-          const hash = decodeURI(this.hash);
-          let isFnRef = RegExp(/^#fnref:/).test(hash);
-          let isFn = RegExp(/^#fn:/).test(hash);
-          let selector = hash.includes(":") ? hash.replace(/\:/, "\\:") : hash;
-          let target = $(selector);
+      const hash = decodeURI(this.hash);
+      let toFootnoteRef = RegExp(/^#fnref:/).test(hash);
+      let toFootnote = toFootnoteRef ? false : RegExp(/^#fn:/).test(hash);
+      let selector = hash.includes(":") ? hash.replace(/\:/g, "\\:") : hash;
+      let $target = $(selector);
 
-          if (target.length) {
-            event.preventDefault();
+      let parent = $(this).parent().prop("tagName");
+      let isAnchor = RegExp(/^H\d/).test(parent);
+      let isMobileViews = !$topbarTitle.is(":hidden");
 
-            if (history.pushState) { /* add hash to URL */
-              history.pushState(null, null, hash);
-            }
+      if (typeof $target === "undefined") {
+        return;
+      }
 
-            let curOffset = $(this).offset().top;
-            let destOffset = target.offset().top;
-            const scrollUp = (destOffset < curOffset);
-            const topbarHeight = $("#topbar-wrapper").outerHeight();
+      event.preventDefault();
 
-            if (scrollUp && isFnRef) {
-              /* Avoid the top-bar covering `fnref` when scrolling up
-                because `fnref` has no `%anchor`(see: module.scss) style. */
-              destOffset -= (topbarHeight + REM / 2);
-            }
+      if (history.pushState) { /* add hash to URL */
+        history.pushState(null, null, hash);
+      }
 
-            $("html,body").animate({
-              scrollTop: destOffset
-            }, 800, () => {
+      let curOffset = isAnchor ? $(this).offset().top : $(window).scrollTop();
+      let destOffset = $target.offset().top -= REM / 2;
 
-              const $target = $(target);
-              $target.focus();
-
-              const SCROLL_MARK = "scroll-focus";
-
-              /* clean up old scroll mark */
-              if ($(`[${SCROLL_MARK}=true]`).length) {
-                $(`[${SCROLL_MARK}=true]`).attr(SCROLL_MARK, false);
-              }
-
-              /* Clean :target links */
-              if ($(":target").length) { /* element that visited by the URL with hash */
-                $(":target").attr(SCROLL_MARK, false);
-              }
-
-              /* set scroll mark to footnotes */
-              if (isFn || isFnRef) {
-                $target.attr(SCROLL_MARK, true);
-              }
-
-              if ($target.is(":focus")) { /* Checking if the target was focused */
-                return false;
-              } else {
-                $target.attr("tabindex", "-1"); /* Adding tabindex for elements not focusable */
-                $target.focus(); /* Set focus again */
-              }
-            });
+      if (destOffset < curOffset) { // scroll up
+        if (!isAnchor && !toFootnote) { // trigger by ToC item
+          if (!isMobileViews) { // on desktop/tablet screens
+            $topbarWrapper.removeClass("topbar-down").addClass("topbar-up");
+            // Send message to `${JS_ROOT}/commons/topbar-switch.js`
+            $topbarWrapper.attr(ATTR_TOC_SCROLLING, true);
+            tocScrollUpCount += 1;
           }
         }
+
+        if ((isAnchor || toFootnoteRef) && isMobileViews) {
+          destOffset -= topbarHeight;
+        }
+
+      } else {
+        if (isMobileViews) {
+          destOffset -= topbarHeight;
+        }
       }
 
+      $("html").animate({
+        scrollTop: destOffset
+      }, 500, () => {
+        $target.focus();
+
+        /* clean up old scroll mark */
+        if ($(`[${SCROLL_MARK}=true]`).length) {
+          $(`[${SCROLL_MARK}=true]`).attr(SCROLL_MARK, false);
+        }
+
+        /* Clean :target links */
+        if ($(":target").length) { /* element that visited by the URL with hash */
+          $(":target").attr(SCROLL_MARK, false);
+        }
+
+        /* set scroll mark to footnotes */
+        if (toFootnote || toFootnoteRef) {
+          $target.attr(SCROLL_MARK, true);
+        }
+
+        if ($target.is(":focus")) { /* Checking if the target was focused */
+          return false;
+        } else {
+          $target.attr("tabindex", "-1"); /* Adding tabindex for elements not focusable */
+          $target.focus(); /* Set focus again */
+        }
+
+        if (typeof $topbarWrapper.attr(ATTR_TOC_SCROLLING) !== "undefined") {
+          tocScrollUpCount -= 1;
+
+          if (tocScrollUpCount <= 0) {
+            $topbarWrapper.attr(ATTR_TOC_SCROLLING, "false");
+          }
+        }
+      });
     }); /* click() */
 });

_javascript/utils/timeago.js

@@ -3,33 +3,28 @@
  */
 
 $(function() {
-
   const timeagoElem = $(".timeago");
-
-  let toRefresh = timeagoElem.length;
-
+  let tasks = timeagoElem.length;
   let intervalId = void 0;
 
-  const locale = $("meta[name=layout-lang]").attr("content");
   const dPrompt = $("meta[name=day-prompt]").attr("content");
   const hrPrompt = $("meta[name=hour-prompt]").attr("content");
   const minPrompt = $("meta[name=minute-prompt]").attr("content");
   const justnowPrompt = $("meta[name=justnow-prompt]").attr("content");
 
-  function timeago(isoDate, dateStr) {
+  function timeago(date, initDate) {
     let now = new Date();
-    let past = new Date(isoDate);
+    let past = new Date(date);
 
     if (past.getFullYear() !== now.getFullYear()
         || past.getMonth() !== now.getMonth()) {
-      return dateStr;
+      return initDate;
     }
 
     let seconds = Math.floor((now - past) / 1000);
 
     let day = Math.floor(seconds / 86400);
     if (day >= 1) {
-      toRefresh -= 1;
       return ` ${day} ${dPrompt}`;
     }
 
@@ -48,22 +43,30 @@ $(function() {
 
   function updateTimeago() {
     $(".timeago").each(function() {
-      if ($(this).children("i").length > 0) {
-        let dateStr = $(this).clone().children().remove().end().text();
-        let node = $(this).children("i");
-        let iosDate = node.text(); /* ISO Date: "YYYY-MM-DDTHH:MM:SSZ" */
-        $(this).text(timeago(iosDate, dateStr));
-        $(this).append(node);
+      if ($(this)[0].hasAttribute("date") === false) {
+        tasks -= 1;
+        return;
       }
+
+      let date = $(this).attr("date");
+      let initDate = $(this).text();
+      let relativeDate = timeago(date, initDate);
+
+      if (relativeDate === initDate) {
+        $(this).removeAttr("date");
+      } else {
+        $(this).text(relativeDate);
+      }
+
     });
 
-    if (toRefresh === 0 && typeof intervalId !== "undefined") {
+    if (tasks === 0 && typeof intervalId !== "undefined") {
       clearInterval(intervalId); /* stop interval */
     }
-    return toRefresh;
+    return tasks;
   }
 
-  if (toRefresh === 0) {
+  if (tasks === 0) {
     return;
   }
 

_layouts/archives.html

@@ -3,6 +3,8 @@ layout: page
 # The Archives of posts.
 ---
 
+{% include lang.html %}
+
 <div id="archives" class="pl-xl-2">
 
 {% for post in site.posts %}
@@ -17,7 +19,7 @@ layout: page
     <li>
       <div>
         {% capture this_day %}{{ post.date | date: "%d" }}{% endcapture %}
-        {% capture _mth_df %}{{ site.data.locales[site.lang].date_format.post.archive_month | default: "%b" }}{% endcapture %}
+        {% capture _mth_df %}{{ site.data.locales[lang].date_format.post.archive_month }}{% endcapture %}
         {% capture this_month %}{{ post.date | date: _mth_df }}{% endcapture %}
         <span class="date day">{{ this_day }}</span>
         <span class="date month small text-muted">{% include no-zero-date.html date_str=this_month %}</span>

_layouts/categories.html

@@ -3,6 +3,8 @@ layout: page
 # All the Categories of posts
 ---
 
+{% include lang.html %}
+
 {% assign HEAD_PREFIX = "h_" %}
 {% assign LIST_PREFIX = "l_" %}
 
@@ -45,10 +47,10 @@ layout: page
         <span class="text-muted small font-weight-light">
           {% if sub_categories_size > 0 %}
             {{ sub_categories_size }}
-            {{ site.data.locales[site.lang].categories.category_measure | default: 'categories' }},
+            {{ site.data.locales[lang].categories.category_measure }},
           {% endif %}
             {{ top_posts_size }}
-            {{ site.data.locales[site.lang].categories.post_measure | default: 'posts' }}
+            {{ site.data.locales[lang].categories.post_measure }}
         </span>
       </span>
 
@@ -81,7 +83,7 @@ layout: page
           {% assign posts_size = site.categories[sub_category] | size %}
           <span class="text-muted small font-weight-light">
             {{ posts_size }}
-            {{ site.data.locales[site.lang].categories.post_measure | default: 'posts' }}
+            {{ site.data.locales[lang].categories.post_measure }}
           </span>
         </li>
         {% endfor %}

_layouts/category.html

@@ -3,6 +3,8 @@ layout: page
 # The Category layout
 ---
 
+{% include lang.html %}
+
 <div id="page-category">
   <h1 class="pl-lg-2">
     <i class="far fa-folder-open fa-fw text-muted"></i>
@@ -11,7 +13,7 @@ layout: page
   </h1>
 
   <ul class="post-content pl-0">
-    {% assign post_df = site.data.locales[site.lang].date_format.post.long | default: '%b %e, %Y' %}
+    {% assign post_df = site.data.locales[lang].date_format.post.long %}
 
     {% for post in page.posts %}
     <li class="d-flex justify-content-between pl-md-3 pr-md-3">

_layouts/default.html

@@ -5,16 +5,22 @@ layout: compress
 
 <!DOCTYPE html>
 
+{% include lang.html %}
+
 {% capture prefer_mode %}
   {% if site.theme_mode %}
     mode="{{ site.theme_mode }}"
   {% endif %}
 {% endcapture %}
 
-<html lang="{{ site.content_lang | default: site.lang }}" {{ prefer_mode }}>
+<html lang="{{ site.lang }}"{{ prefer_mode }}>
 
   {% include head.html %}
 
+  {% unless site.theme_mode %}
+    {% include mode-toggle.html %}
+  {% endunless %}
+
   <body data-spy="scroll" data-target="#toc">
 
     {% include sidebar.html %}
@@ -24,7 +30,7 @@ layout: compress
     <div id="main-wrapper">
       <div id="main">
 
-        {% include refactor-content.html content=content %}
+        {{ content }}
 
         {% include footer.html %}
 

_layouts/home.html

@@ -3,6 +3,8 @@ layout: page
 # The Home page layout
 ---
 
+{% include lang.html %}
+
 {% assign pinned = site.posts | where: "pin", "true" %}
 {% assign default = site.posts | where_exp: "item", "item.pin != true" %}
 
@@ -51,13 +53,13 @@ layout: page
     <div class="post-content">
       <p>
         {% include no-linenos.html content=post.content %}
-        {{ content | markdownify | strip_html | truncate: 200 }}
+        {{ content | markdownify | strip_html | truncate: 200 | escape }}
       </p>
     </div>
 
-    <div class="post-meta text-muted d-flex justify-content-between">
+    <div class="post-meta text-muted d-flex">
 
-      <div>
+      <div class="mr-auto">
         <!-- posted date -->
         <i class="far fa-calendar fa-fw"></i>
         {% include timeago.html date=post.date tooltip=true %}
@@ -66,19 +68,22 @@ layout: page
         <i class="far fa-clock fa-fw"></i>
         {% include read-time.html content=post.content %}
 
-        <!-- page views -->
-        {% if site.google_analytics.pv.proxy_endpoint or site.google_analytics.pv.cache_path %}
-        <i class="far fa-eye fa-fw"></i>
-        <span id="pv_{{-post.title-}}" class="pageviews">
-          <i class="fas fa-spinner fa-spin fa-fw"></i>
-        </span>
+        <!-- categories -->
+        {% if post.categories.size > 0 %}
+          <i class="far fa-folder-open fa-fw"></i>
+          <span>
+          {% for category in post.categories %}
+            {{ category }}
+            {%- unless forloop.last -%},{%- endunless -%}
+          {% endfor %}
+          </span>
         {% endif %}
       </div>
 
       {% if post.pin %}
       <div class="pin">
         <i class="fas fa-thumbtack fa-fw"></i>
-        <span>{{ site.data.locales[site.lang].post.pin_prompt | default: 'Pinned' }}</span>
+        <span>{{ site.data.locales[lang].post.pin_prompt }}</span>
       </div>
       {% endif %}
 

_layouts/page.html

@@ -1,41 +1,64 @@
 ---
 layout: default
-# The page layout
 ---
 
+{% include lang.html %}
+
 <div class="row">
-  <div class="col-12 col-lg-11 col-xl-8">
-    <div id="page" class="post pb-5 pl-1 pr-1 pl-sm-2 pr-sm-2 pl-md-4 pr-md-4 mb-md-4">
-    {% if page.dynamic_title %}
+
+  <!-- core -->
+  <div id="core-wrapper" class="col-12 col-lg-11 col-xl-8">
+    <div class="post pl-1 pr-1 pl-sm-2 pr-sm-2 pl-md-4 pr-md-4">
+
+    {% capture _content %}
+      {% if layout.refactor or page.layout == 'page' %}
+        {% include refactor-content.html content=content %}
+      {% else %}
+        {{ content }}
+      {% endif %}
+    {% endcapture %}
+
+    {% if page.layout == 'page' or page.collection == 'tabs'%}
+      {% assign title = site.data.locales[lang].tabs[tab_key] | default: page.title %}
       <h1 class="dynamic-title">
-        {% if page.collection == 'tabs' %}
-          {%- capture tab_key -%}{{ page.url | split: '/' }}{%- endcapture -%}
-          {{- site.data.locales[site.lang].tabs[tab_key] | default: page.title -}}
-        {% else %}
-          {{- page.title -}}
-        {% endif %}
+        {{ title }}
       </h1>
       <div class="post-content">
-        {{ content }}
+        {{ _content }}
       </div>
     {% else %}
-      {{ content }}
+      {{ _content }}
     {% endif %}
-    </div> <!-- #page -->
-  </div><!-- .col-12 -->
 
-  {% include panel.html %}
+    </div>
+  </div> <!-- #core-wrapper -->
+
+  <!-- pannel -->
+  <div id="panel-wrapper" class="col-xl-3 pl-2 text-muted topbar-down">
+
+    <div class="access">
+      {% include update-list.html %}
+      {% include trending-tags.html %}
+    </div>
+
+    {% for _include in layout.pannel_includes %}
+      {% assign _include_path = _include | append: '.html' %}
+      {% include {{ _include_path }} %}
+    {% endfor %}
+  </div>
 
 </div>
 
-{% if site.disqus.comments and page.comments %}
+<!-- tail -->
+{% if layout.tail_includes %}
 <div class="row">
   <div class="col-12 col-lg-11 col-xl-8">
-    <div class="pl-1 pr-1 pl-sm-2 pr-sm-2 pl-md-4 pr-md-4">
-
-    {% include disqus.html %}
-
-    </div> <!-- .pl-1 pr-1 -->
-  </div> <!-- .col-12 -->
+    <div id="tail-wrapper" class="pl-1 pr-1 pl-sm-2 pr-sm-2 pl-md-4 pr-md-4">
+      {% for _include in layout.tail_includes %}
+        {% assign _include_path = _include | append: '.html' %}
+        {% include {{ _include_path }} %}
+      {% endfor %}
+    </div>
+  </div>
 </div> <!-- .row -->
 {% endif %}

_layouts/post.html

@@ -1,143 +1,144 @@
 ---
-layout: default
-# The posts' layout
+layout: page
+refactor: true
+pannel_includes:
+  - toc
+tail_includes:
+  - related-posts
+  - post-nav
+  - comments
 ---
 
-<div class="row">
+{% include lang.html %}
 
-  <div id="post-wrapper" class="col-12 col-lg-11 col-xl-8">
+{% if page.image.src %}
+  {% capture bg %}
+    {% unless page.image.no_bg %}{{ 'bg' }}{% endunless %}
+  {% endcapture %}
+  <img src="{{ page.image.src }}" class="preview-img {{ bg | strip }}"
+      alt="{{ page.image.alt | default: "Preview Image" }}"
 
-    <div class="post pl-1 pr-1 pl-sm-2 pr-sm-2 pl-md-4 pr-md-4">
+      {% if page.image.width %}
+        width="{{ page.image.width }}"
+      {% elsif page.image.w %}
+        width="{{ page.image.w }}"
+      {% endif %}
 
-      <h1 data-toc-skip>{{ page.title }}</h1>
+      {% if page.image.height %}
+        height="{{ page.image.height }}"
+      {% elsif page.image.h %}
+        height="{{ page.image.h }}"
+      {% endif %}>
+{% endif %}
 
-      <div class="post-meta text-muted d-flex flex-column">
-        <!-- Published date and author -->
-        <div>
-          <span class="semi-bold">
-            {{ page.author | default: site.social.name }}
-          </span>
-          {% capture _preposition %}{{ site.data.locales[site.lang].post.published | default: 'on' }}{% endcapture %}
-          {% include timeago.html date=page.date tooltip=true preposition=_preposition %}
-        </div>
+<h1 data-toc-skip>{{ page.title }}</h1>
 
-        <div>
-          <!-- lastmod -->
-          {% if page.last_modified_at %}
-          <span>
-            {{ site.data.locales[site.lang].post.updated | default: 'Updated' }}
-            {% include timeago.html date=page.last_modified_at class="lastmod" tooltip=true %}
-          </span>
-          {% endif %}
+<div class="post-meta text-muted">
 
-          <!-- read time -->
-          {% include read-time.html content=content prompt=true %}
+  <!-- author -->
+  <div>
+    {% capture author_name %}{{ page.author.name | default: site.social.name }}{% endcapture %}
+    {% assign author_link = nil %}
 
-          <!-- page views -->
-          {% if site.google_analytics.pv.proxy_endpoint or site.google_analytics.pv.cache_path %}
-          <span id="pv" class="pageviews">
-            <i class="fas fa-spinner fa-spin fa-fw"></i>
-          </span>
-          {{ site.data.locales[site.lang].post.pageview_measure | default: "views" }}
-          {% endif %}
-
-        </div>
-
-      </div> <!-- .post-meta -->
-
-      <div class="post-content">
-
-        {% if page.image.src %}
-          <img src="{{ page.image.src }}"
-            class="preview-img"
-            alt="{{ page.image.alt | default: "Preview Image" }}"
-            {% if page.image.width %}width="{{ page.image.width }}"{% endif %}
-            {% if page.image.height %}height="{{ page.image.height }}"{% endif %}>
-        {% endif %}
-
-        {{ content }}
-
-      </div>
-
-      <div class="post-tail-wrapper text-muted">
-
-        <!-- categories -->
-        {% if page.categories.size > 0 %}
-
-        <div class="post-meta mb-3">
-          <i class="far fa-folder-open fa-fw mr-1"></i>
-          {% for category in page.categories %}
-            <a href='{{ site.baseurl }}/categories/{{ category | slugify | url_encode }}/'>{{ category }}</a>
-            {%- unless forloop.last -%}, {%- endunless -%}
-          {% endfor %}
-        </div>
-        {% endif %}
-
-        <!-- tags -->
-        {% if page.tags.size > 0 %}
-        <div class="post-tags">
-          <i class="fa fa-tags fa-fw mr-1"></i>
-          {% for tag in page.tags %}
-          <a href="{{ site.baseurl }}/tags/{{ tag | slugify | url_encode }}/"
-            class="post-tag no-text-decoration" >
-            {{- tag -}}
-          </a>
-          {% endfor %}
-          </div>
-        {% endif %}
-
-        <div class="post-tail-bottom
-          d-flex justify-content-between align-items-center mt-3 pt-5 pb-2">
-          <div class="license-wrapper">
-          {% if site.data.locales[site.lang].copyright.license.template %}
-            {% capture _replacement %}
-            <a href="{{ site.data.locales[site.lang].copyright.license.link }}">
-              {{ site.data.locales[site.lang].copyright.license.name }}
-            </a>
-            {% endcapture %}
-            {{ site.data.locales[site.lang].copyright.license.template | replace: ':LICENSE_NAME', _replacement }}
-          {% else %}
-            <span class="text-muted small">{{ site.outdated }}</span>
-          {% endif %}
-          </div>
-
-          {% include post-sharing.html %}
-
-        </div><!-- .post-tail-bottom -->
-
-      </div><!-- div.post-tail -->
-
-    </div> <!-- .post -->
-
-
-  </div> <!-- #post-wrapper -->
-
-  {% assign enable_toc = false %}
-
-  {% if site.toc and page.toc %}
-    {% if content contains '<h2' or content contains '<h3' %}
-      {% assign enable_toc = true %}
+    {% if page.author.link %}
+      {% assign author_link = page.author.link %}
+    {% elsif author_name == site.social.name %}
+      {% assign author_link = site.social.links[0] %}
     {% endif %}
+
+    {{ site.data.locales[lang].post.written_by }}
+    <em>
+      {% if author_link %}
+        <a href="{{ author_link }}">{{ author_name }}</a>
+      {% else %}
+        {{ author_name }}
+      {% endif %}
+    </em>
+  </div>
+
+  <div class="d-flex">
+    <div>
+      <!-- published date -->
+      <span>
+        {{ site.data.locales[lang].post.posted }}
+        {% include timeago.html date=page.date tooltip=true %}
+      </span>
+
+      <!-- lastmod date -->
+      {% if page.last_modified_at %}
+      <span>
+        {{ site.data.locales[lang].post.updated }}
+        {% include timeago.html date=page.last_modified_at tooltip=true %}
+      </span>
+      {% endif %}
+
+      <!-- read time -->
+      {% include read-time.html content=content prompt=true %}
+
+      <!-- page views -->
+      {% if site.google_analytics.pv.proxy_endpoint or site.google_analytics.pv.cache_path %}
+      <span>
+        <em id="pv" class="pageviews">
+          <i class="fas fa-spinner fa-spin fa-fw"></i>
+        </em>
+        {{ site.data.locales[lang].post.pageview_measure }}
+      </span>
+      {% endif %}
+    </div>
+
+  </div> <!-- .d-flex -->
+
+</div> <!-- .post-meta -->
+
+<div class="post-content">
+  {{ content }}
+</div>
+
+<div class="post-tail-wrapper text-muted">
+
+  <!-- categories -->
+  {% if page.categories.size > 0 %}
+  <div class="post-meta mb-3">
+    <i class="far fa-folder-open fa-fw mr-1"></i>
+    {% for category in page.categories %}
+      <a href='{{ site.baseurl }}/categories/{{ category | slugify | url_encode }}/'>{{ category }}</a>
+      {%- unless forloop.last -%}, {%- endunless -%}
+    {% endfor %}
+  </div>
   {% endif %}
 
-  {% include panel.html toc=enable_toc %}
+  <!-- tags -->
+  {% if page.tags.size > 0 %}
+  <div class="post-tags">
+    <i class="fa fa-tags fa-fw mr-1"></i>
+      {% for tag in page.tags %}
+      <a href="{{ site.baseurl }}/tags/{{ tag | slugify | url_encode }}/"
+          class="post-tag no-text-decoration" >
+        {{- tag -}}
+      </a>
+      {% endfor %}
+  </div>
+  {% endif %}
 
-</div> <!-- .row -->
+  <div class="post-tail-bottom
+    d-flex justify-content-between align-items-center mt-3 pt-5 pb-2">
+    <div class="license-wrapper">
 
-<div class="row">
-  <div class="col-12 col-lg-11 col-xl-8">
-    <div id="post-extend-wrapper" class="pl-1 pr-1 pl-sm-2 pr-sm-2 pl-md-4 pr-md-4">
+      {% if site.data.locales[lang].copyright.license.template %}
 
-    {% include related-posts.html %}
+        {% capture _replacement %}
+        <a href="{{ site.data.locales[lang].copyright.license.link }}">
+          {{ site.data.locales[lang].copyright.license.name }}
+        </a>
+        {% endcapture %}
 
-    {% include post-nav.html %}
+        {{ site.data.locales[lang].copyright.license.template | replace: ':LICENSE_NAME', _replacement }}
 
-    {% if site.disqus.comments and page.comments %}
-      {% include disqus.html %}
-    {% endif %}
+      {% endif %}
+    </div>
 
-    </div> <!-- #post-extend-wrapper -->
+    {% include post-sharing.html %}
 
-  </div> <!-- .col-* -->
+  </div><!-- .post-tail-bottom -->
 
-</div> <!-- .row -->
+</div><!-- div.post-tail-wrapper -->

_layouts/tag.html

@@ -3,6 +3,8 @@ layout: page
 # The layout for Tag page
 ---
 
+{% include lang.html %}
+
 <div id="page-tag">
   <h1 class="pl-lg-2">
     <i class="fa fa-tag fa-fw text-muted"></i>
@@ -10,7 +12,7 @@ layout: page
     <span class="lead text-muted pl-2">{{ page.posts | size }}</span>
   </h1>
   <ul class="post-content pl-0">
-    {% assign post_df = site.data.locales[site.lang].date_format.post.long | default: '%b %e, %Y' %}
+    {% assign post_df = site.data.locales[lang].date_format.post.long %}
 
     {% for post in page.posts %}
     <li class="d-flex justify-content-between pl-md-3 pr-md-3">

_posts/2019-08-08-text-and-typography.md

@@ -1,15 +1,17 @@
 ---
 title: Text and Typography
-author: Cotes Chung
+author:
+  name: Cotes Chung
+  link: https://github.com/cotes2020
 date: 2019-08-08 11:33:00 +0800
 categories: [Blogging, Demo]
 tags: [typography]
 math: true
 mermaid: true
 image:
-  src: https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/commons/devices-mockup.png
-  width: 850
-  height: 585
+  src: /commons/devices-mockup.png
+  width: 800
+  height: 500
 ---
 
 This post is to show Markdown syntax rendering on [**Chirpy**](https://github.com/cotes2020/jekyll-theme-chirpy/fork), you can also use it as an example of writing. Now, let's start looking at text and typography.
@@ -52,8 +54,8 @@ Fluttering and dancing in the breeze.
 ### Unordered list
 
 - Chapter
-	- Section
-      - Paragraph
+  - Section
+    - Paragraph
 
 ### Task list
 
@@ -72,7 +74,6 @@ Sun
 Moon
 : the natural satellite of the earth, visible by reflected light from the sun
 
-
 ## Block Quote
 
 > This line to shows the Block Quote.
@@ -89,44 +90,42 @@ Moon
 
 <http://127.0.0.1:4000>
 
-
 ## Footnote
 
 Click the hook will locate the footnote[^footnote], and here is another footnote[^fn-nth-2].
 
-
 ## Images
 
 - Default (with caption)
 
-![Desktop View](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190808/mockup.png){: width="972" height="589" }
+![Desktop View](/posts/20190808/mockup.png){: width="972" height="589" }
 _Full screen width and center alignment_
 
 <br>
 
 - Shadow
 
-![Window shadow](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190808/window.png){: .shadow width="1548" height="864" style="max-width: 90%" }
+![Window shadow](/posts/20190808/window.png){: .shadow width="1548" height="864" style="max-width: 90%" }
 _shadow effect (visible in light mode)_
 
 <br>
 
 - Left aligned
 
-![Desktop View](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190808/mockup.png){: width="972" height="589" style="max-width: 70%" .normal}
+![Desktop View](/posts/20190808/mockup.png){: width="972" height="589" style="max-width: 70%" .normal}
 
 <br>
 
 - Float to left
 
-  ![Desktop View](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190808/mockup.png){: width="972" height="589" style="max-width: 200px" .left}
+  ![Desktop View](/posts/20190808/mockup.png){: width="972" height="589" style="max-width: 200px" .left}
   "A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space."
 
 <br>
 
 - Float to right
 
-  ![Desktop View](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190808/mockup.png){: width="972" height="589" style="max-width: 200px" .right}
+  ![Desktop View](/posts/20190808/mockup.png){: width="972" height="589" style="max-width: 200px" .right}
   "A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space."
 
 <br>
@@ -141,7 +140,6 @@ _shadow effect (visible in light mode)_
   cherry :active, c, after b a, 1d
 ```
 
-
 ## Mathematics
 
 The mathematics powered by [**MathJax**](https://www.mathjax.org/):
@@ -152,12 +150,10 @@ When $a \ne 0$, there are two solutions to $ax^2 + bx + c = 0$ and they are
 
 $$ x = {-b \pm \sqrt{b^2-4ac} \over 2a} $$
 
-
 ## Inline code
 
 This is an example of `Inline Code`.
 
-
 ## Code block
 
 ### Common
@@ -176,44 +172,23 @@ SHELL=/usr/local/bin/bash
 PYENV_SHELL=bash
 ```
 
-#### Ruby
-
-```ruby
-def sum_eq_n?(arr, n)
-  return true if arr.empty? && n == 0
-  arr.product(arr).reject { |a,b| a == b }.any? { |a,b| a + b == n }
-end
-```
-
 #### Shell
 
-```shell
+```bash
 if [ $? -ne 0 ]; then
     echo "The command was not successful.";
     #do the needful / exit
 fi;
 ```
 
-#### Liquid
+### Specific filename
 
-{% raw %}
-```liquid
-{% if product.title contains 'Pack' %}
-  This product's title contains the word Pack.
-{% endif %}
-```
-{% endraw %}
-
-#### Java
-
-```java
-private void writeObject(java.io.ObjectOutputStream s)
-  throws java.io.IOException {
-  // Write out any hidden serialization magic
-  s.defaultWriteObject();
-  for (E e: map.keySet()) s.writeObject(e);
-}
+```sass
+@import
+  "colors/light-typography",
+  "colors/dark-typography"
 ```
+{: file='_sass/jekyll-theme-chirpy.scss'}
 
 ## Reverse Footnote
 

_posts/2019-08-08-write-a-new-post.md

@@ -1,14 +1,19 @@
 ---
 title: Writing a New Post
-author: Cotes Chung
+author:
+  name: Cotes Chung
+  link: https://github.com/cotes2020
 date: 2019-08-08 14:10:00 +0800
 categories: [Blogging, Tutorial]
 tags: [writing]
+render_with_liquid: false
 ---
 
+This post will guide you how to write a post on _Chirpy_ theme. Even if you have previous experience with Jekyll, this article is worth reading, because many features require specific variables to be set.
+
 ## Naming and Path
 
-Create a new file named `YYYY-MM-DD-TITLE.EXTENSION` and put it in the `_posts/` of the root directory. Please note that the `EXTENSION` must be one of `md` and `markdown`.
+Create a new file named `YYYY-MM-DD-TITLE.EXTENSION` and put it in the `_posts` of the root directory. Please note that the `EXTENSION` must be one of `md` and `markdown`. If you want to save time of creating files, please consider using the plugin [`Jekyll-Compose`](https://github.com/jekyll/jekyll-compose) to accomplish this.
 
 ## Front Matter
 
@@ -23,24 +28,38 @@ tags: [TAG]     # TAG names should always be lowercase
 ---
 ```
 
-> **Note**: The posts' ***layout*** has been set to `post` by default, so there is no need to add the variable ***layout*** in Front Matter block.
+> **Note**: The posts' _layout_ has been set to `post` by default, so there is no need to add the variable _layout_ in the Front Matter block.
 
-### Timezone of date
+### Timezone of Date
 
-In order to accurately record the release date of a post, you should not only setup the `timezone` of `_config.yml` but also provide the the post's timezone in field `date` of its Front Matter block. Format: `+/-TTTT`, e.g. `+0800`.
+In order to accurately record the release date of a post, you should not only set up the `timezone` of _\_config.yml_ but also provide the post's timezone in variable `date` of its Front Matter block. Format: `+/-TTTT`, e.g. `+0800`.
 
 ### Categories and Tags
 
-The `categories` of each post is designed to contain up to two elements, and the number of elements in `tags` can be zero to infinity. For instance:
+The `categories` of each post are designed to contain up to two elements, and the number of elements in `tags` can be zero to infinity. For instance:
 
 ```yaml
+---
 categories: [Animal, Insect]
 tags: [bee]
+---
+```
+
+### Author Information
+
+The author information of the post usually does not need to be filled in the _Front Matter_ , they will be obtained from variables `social.name` and the first entry of `social.links` of the configuration file by default. But you can also override it as follows:
+
+```yaml
+---
+author:
+  name: Full Name
+  link: https://example.com
+---
 ```
 
 ## Table of Contents
 
-By default, the **T**able **o**f **C**ontents (TOC) is displayed on the right panel of the post. If you want to turn it off globally, go to `_config.yml` and set the value of variable `toc` to `false`. If you want to turn off TOC for specific post, add the following to post's [Front Matter](https://jekyllrb.com/docs/front-matter/):
+By default, the **T**able **o**f **C**ontents (TOC) is displayed on the right panel of the post. If you want to turn it off globally, go to _\_config.yml_ and set the value of variable `toc` to `false`. If you want to turn off TOC for a specific post, add the following to the post's [Front Matter](https://jekyllrb.com/docs/front-matter/):
 
 ```yaml
 ---
@@ -50,7 +69,9 @@ toc: false
 
 ## Comments
 
-Similar to TOC, the [Disqus](https://disqus.com/) comments is loaded by default in each post, and the global switch is defined by variable `comments` in file `_config.yml` . If you want to close the comment for specific post, add the following to the **Front Matter** of the post:
+The global switch of comments is defined by variable `comments.active` in the file _\_config.yml_. After selecting a comment system for this variable, comments will be turned on for all posts.
+
+If you want to close the comment for a specific post, add the following to the **Front Matter** of the post:
 
 ```yaml
 ---
@@ -72,19 +93,134 @@ math: true
 
 [**Mermaid**](https://github.com/mermaid-js/mermaid) is a great diagrams generation tool. To enable it on your post, add the following to the YAML block:
 
-```yml
+```yaml
 ---
 mermaid: true
 ---
 ```
 
-Then you can use it like other markdown language: surround the graph code with ```` ```mermaid ```` and ```` ``` ````.
+Then you can use it like other markdown languages: surround the graph code with ```` ```mermaid ```` and ```` ``` ````.
 
 ## Images
 
-### Preview image
+### Caption
 
-If you want to add an image to the top of the post contents, specify the attribute `src`, `width`, `height` and `alt` for the image:
+Add italics to the next line of an image，then it will become the caption and appear at the bottom of the image:
+
+```markdown
+![img-description](/path/to/image)
+_Image Caption_
+```
+{: .nolineno}
+
+### Size
+
+In order to prevent the page content layout from shifting when the image is loaded, we should set the width and height for each image:
+
+```markdown
+![Desktop View](/assets/img/sample/mockup.png){: width="700" height="400" }
+```
+{: .nolineno}
+
+Starting from _Chirpy v5.0.0_, `height` and `width` support abbreviations (`height` → `h`, `width` → `w`). The following example has the same effect as the above:
+
+```markdown
+![Desktop View](/assets/img/sample/mockup.png){: w="700" h="400" }
+```
+{: .nolineno}
+
+### Position
+
+By default, the image is centered, but you can specify the position by using one of the classes `normal`, `left`, and `right`. For example:
+
+- **Normal position**
+
+  Image will be left aligned in below sample:
+
+  ```markdown
+  ![Desktop View](/assets/img/sample/mockup.png){: .normal }
+  ```
+  {: .nolineno}
+
+- **Float to the left**
+
+  ```markdown
+  ![Desktop View](/assets/img/sample/mockup.png){: .left }
+  ```
+  {: .nolineno}
+
+- **Float to the right**
+
+  ```markdown
+  ![Desktop View](/assets/img/sample/mockup.png){: .right }
+  ```
+  {: .nolineno}
+
+> **Limitation**: Once the position of the image is specified, the image caption should not be added.
+
+### Shadow
+
+The screenshots of the program window can be considered to show the shadow effect, and the shadow will be visible in the `light` mode:
+
+```markdown
+![Desktop View](/assets/img/sample/mockup.png){: .shadow }
+```
+{: .nolineno}
+
+### CDN URL
+
+If you host the images on the CDN, you can save the time of repeatedly writing the CDN URL by assigning the variable `img_cdn` of _\_config.yml_ file:
+
+```yaml
+img_cdn: https://cdn.com
+```
+{: file='_config.yml' .nolineno}
+
+Once `img_cdn` is assigned, the CDN URL will be added to the path of all images (images of site avatar and posts) starting with `/`.
+
+For instance, when using images:
+
+```markdown
+![The flower](/path/to/flower.png)
+```
+{: .nolineno}
+
+The parsing result will automatically add the CDN prefix `https://cdn.com` before the image path:
+
+```html
+<img src="https://cdn.com/path/to/flower.png" alt="The flower">
+```
+{: .nolineno}
+
+### Image Path
+
+When a post contains many images, it will be a time-consuming task to repeatedly define the path of the images. To solve this, we can define this path in the YAML block of the post:
+
+```yml
+---
+img_path: /img/path/
+---
+```
+{: .nolineno }
+
+And then, the image source of Markdown can write the file name directly:
+
+```md
+![The flower](flower.png)
+```
+{: .nolineno }
+
+The output will be:
+
+```html
+<img src="/img/path/flower.png" alt="The flower">
+```
+{: .nolineno }
+
+
+### Preview Image
+
+If you want to add an image to the top of the post contents, specify the attribute `src`, `width`, `height`, and `alt` for the image:
 
 ```yaml
 ---
@@ -96,81 +232,9 @@ image:
 ---
 ```
 
-Except for `alt`, all other options are necessary, especially the `width` and `height`, which are related to user experience and web page loading performance. Later section ["Image size"](#image-size) will also mention this.
+Except for `alt`, all other options are necessary, especially the `width` and `height`, which are related to user experience and web page loading performance. The above section "[Size](#size)" also mentions this.
 
-
-### Image caption
-
-Add italics to the next line of an image，then it will become the caption and appear at the bottom of the image:
-
-```markdown
-![img-description](/path/to/image)
-_Image Caption_
-```
-
-### Image size
-
-In order to prevent the page content layout from shifting when the image is loaded, we should set the width and height for each image:
-
-```markdown
-![Desktop View](/assets/img/sample/mockup.png){: width="700" height="400" }
-```
-
-### Image position
-
-By default, the image is centered, but you can specify the position by using one of class `normal` , `left` and `right`. For example:
-
-- **Normal position**
-
-  Image will be left aligned in below sample:
-
-  ```markdown
-  ![Desktop View](/assets/img/sample/mockup.png){: .normal }
-  ```
-
-- **Float to the left**
-
-  ```markdown
-  ![Desktop View](/assets/img/sample/mockup.png){: .left }
-  ```
-
-- **Float to the right**
-
-  ```markdown
-  ![Desktop View](/assets/img/sample/mockup.png){: .right }
-  ```
-
-> **Limitation**: Once you specify the position of an image, it is forbidden to add the image caption.
-
-### Image shadow
-
-The screenshots of the program window can be considered to show the shadow effect, and the shadow will be visible in the `light` mode:
-
-```markdown
-![Desktop View](/assets/img/sample/mockup.png){: .shadow }
-```
-
-### CDN URL
-
-If you host the images on the CDN, you can save the time of repeatedly writing the CDN url by assigning the variable `img_cdn` of `_config.yml` file:
-
-```yaml
-img_cdn: https://cdn.com
-```
-
-Once `img_cdn` is assigned, the CDN url will be added to the path of all images (images of site avatar and posts) starting with `/`.
-
-For instance, when using images:
-
-```markdown
-![The flower](/path/to/flower.png)
-```
-
-The parsing result will automatically add the CDN prefix `https://cdn.com` before the image path:
-
-```html
-<img src="https://cdn.com/path/to/flower.png" alt="The flower">
-```
+Starting from _Chirpy v5.0.0_, the attributes `height` and `width` can be abbreviated: `height` → `h`, `width` → `w`. In addition, the [`img_path`](#image-path) can also be passed to the preview image, that is, when it has been set, the  attribute `src` only needs the image file name.
 
 ## Pinned Posts
 
@@ -184,31 +248,51 @@ pin: true
 
 ## Code Block
 
-Markdown symbols ```` ``` ```` can easily create a code block as following examples.
+Markdown symbols ```` ``` ```` can easily create a code block as follows:
 
 ```
-This is a common code snippet, without syntax highlight and line number.
+This is a plaintext code snippet.
 ```
 
-## Specific Language
+### Specifying Language
 
-Using ```` ```language ```` you will get code snippets with line numbers and syntax highlight.
-
-> **Note**: The Jekyll style `{% raw %}{%{% endraw %} highlight LANGUAGE {% raw %}%}{% endraw %}` or `{% raw %}{%{% endraw %} highlight LANGUAGE linenos {% raw %}%}{% endraw %}` are not allowed to be used in this theme !
+Using ```` ```{language} ```` you will get a code block with syntax highlight:
 
+````markdown
 ```yaml
-# Yaml code snippet
-items:
-    - part_no:   A4786
-      descrip:   Water Bucket (Filled)
-      price:     1.47
-      quantity:  4
+key: value
 ```
+````
+
+> **Limitation**: The Jekyll style `highlight` tag is not compatible with this theme.
+
+### Line Number
+
+By default, all languages except `plaintext`, `console`, and `terminal` will display line numbers. When you want to hide the line number of the code block, you can append `{: .nolineno}` at the next line:
+
+````markdown
+```shell
+echo 'No more line numbers!'
+```
+{: .nolineno}
+````
+
+### Specifying the Filename
+
+You may have noticed that the code language will be displayed on the left side of the header of the code block. If you want to replace it with the file name, you can add the attribute `file` to achieve this:
+
+````markdown
+```shell
+# content
+```
+{: file="path/to/file" }
+````
 
 ### Liquid Codes
 
-If you want to display the **Liquid** snippet, surround the liquid code with `{% raw %}{%{% endraw %} raw {%raw%}%}{%endraw%}` and `{% raw %}{%{% endraw %} endraw {%raw%}%}{%endraw%}` .
+If you want to display the **Liquid** snippet, surround the liquid code with `{% raw %}` and `{% endraw %}`:
 
+````markdown
 {% raw %}
 ```liquid
 {% if product.title contains 'Pack' %}
@@ -216,8 +300,10 @@ If you want to display the **Liquid** snippet, surround the liquid code with `{%
 {% endif %}
 ```
 {% endraw %}
+````
+
+Or adding `render_with_liquid: false` (Requires Jekyll 4.0 or higher) to the post's YAML block.
 
 ## Learn More
 
 For more knowledge about Jekyll posts, visit the [Jekyll Docs: Posts](https://jekyllrb.com/docs/posts/).
-

_posts/2019-08-09-getting-started.md

@@ -1,6 +1,8 @@
 ---
 title: Getting Started
-author: Cotes Chung
+author:
+  name: Cotes Chung
+  link: https://github.com/cotes2020
 date: 2019-08-09 20:55:00 +0800
 categories: [Blogging, Tutorial]
 tags: [getting started]
@@ -9,58 +11,24 @@ pin: true
 
 ## Prerequisites
 
-Follow the [Jekyll Docs](https://jekyllrb.com/docs/installation/) to complete the installation of `Ruby`, `RubyGems`, `Jekyll` and `Bundler`. Please note that the version of `Ruby` must meet the requirements of the theme on [RubyGems.org](https://rubygems.org/gems/jekyll-theme-chirpy).
+Follow the instructions in the [Jekyll Docs](https://jekyllrb.com/docs/installation/) to complete the installation of `Ruby`, `RubyGems`, `Jekyll`, and `Bundler`.
 
 ## Installation
 
-There are two ways to get the theme:
+### Creating a New Site
 
-- **[Install from RubyGems](#install-from-rubygems)** - Easy to update, isolate irrelevant project files so you can focus on writing.
-- **[Fork on GitHub](#fork-on-github)** - Convenient for custom development, but difficult to update, only suitable for web developers.
+There are two ways to create a new repository for this theme:
 
-### Install from RubyGems
+- [**Using the Chirpy Starter**](#option-1-using-the-chirpy-starter) - Easy to upgrade, isolates irrelevant project files so you can focus on writing.
+- [**Forking on GitHub**](#option-2-forking-on-github) - Convenient for custom development, but difficult to upgrade. Unless you are familiar with Jekyll and are determined to tweak or contribute to this project, this approach is not recommended.
 
-Add this line to your Jekyll site's `Gemfile`:
+#### Option 1. Using the Chirpy Starter
 
-```ruby
-gem "jekyll-theme-chirpy"
-```
+Create a new repository from the [**Chirpy Starter**][use-starter] and name it `<GH_USERNAME>.github.io`, where `GH_USERNAME` represents your GitHub username.
 
-And add this line to your Jekyll site's `_config.yml`:
+#### Option 2. Forking on GitHub
 
-```yaml
-theme: jekyll-theme-chirpy
-```
-
-And then execute:
-
-```console
-$ bundle
-```
-
-Next, go to the installed local theme path:
-
-```console
-$ cd "$(bundle info --path jekyll-theme-chirpy)"
-```
-
-And then copy the critical files (for details, see [starter project][starter]) from the theme's gem to your Jekyll site.
-
-> ⚠️ **Watch out for duplicate files!**
->
-If your Jekyll site is created by the `jekyll new` command, there will be `index.markdown` and `about.markdown` in the root directory of your site. Please be sure to remove them, otherwise they will overwrite the `index.html` and `_tabs/about.html` from this project, resulting in blank or messy pages.
-
-As an alternative, which we recommend, you can create a Jekyll site [**using the starter template**][use-starter] to save time copying files from the theme's gem. We've prepared everything you need there!
-
-### Fork on GitHub
-
-[Fork **Chirpy**](https://github.com/cotes2020/jekyll-theme-chirpy/fork) on GitHub and then clone your fork to local. (Please note that the default branch code is in development.  If you want the blog to be stable, please switch to the [latest tag](https://github.com/cotes2020/jekyll-theme-chirpy/tags) and start writing.)
-
-Install gem dependencies by:
-
-```console
-$ bundle
-```
+[Fork **Chirpy**](https://github.com/cotes2020/jekyll-theme-chirpy/fork) on GitHub and rename it to `<GH_USERNAME>.github.io`. Please note that the default branch code is in development.  If you want the site to be stable, please switch to the [latest tag][latest-tag] and start writing.
 
 And then execute:
 
@@ -68,18 +36,28 @@ And then execute:
 $ bash tools/init.sh
 ```
 
-> **Note**: If you don't plan to deploy your site on GitHub Pages, append parameter option `--no-gh` at the end of the above command.
+> **Note**: If you don't want to deploy your site on GitHub Pages, append option `--no-gh` at the end of the above command.
 
-What it does is:
+The above command will:
 
-1. Remove some files or directories from your repository:
+1. Removes some files or directories from your repository:
     - `.travis.yml`
     - files under `_posts`
     - folder `docs`
 
-2. If you use the `--no-gh` option, the directory `.github` will be deleted. Otherwise, setup the GitHub Action workflow by removing the extension `.hook` of `.github/workflows/pages-deploy.yml.hook`, and then remove the other files and directories in the folder `.github`.
+2. If the option `--no-gh` is provided, the directory `.github` will be deleted. Otherwise, set up the GitHub Action workflow by removing the extension `.hook` of `.github/workflows/pages-deploy.yml.hook`, and then remove the other files and directories in the folder `.github`.
 
-3. Automatically create a commit to save the changes.
+3. Removes item `Gemfile.lock` from `.gitignore`.
+
+4. Creates a new commit to save the changes automatically.
+
+### Installing Dependencies
+
+Before running for the first time, go to the root directory of your site, and install dependencies as follows:
+
+```console
+$ bundle
+```
 
 ## Usage
 
@@ -94,9 +72,9 @@ Update the variables of `_config.yml` as needed. Some of them are typical option
 
 ### Customing Stylesheet
 
-If you need to customize stylesheet, copy the theme's `assets/css/style.scss` to the same path on your Jekyll site, and then add the custom style at the end of the style file.
+If you need to customize the stylesheet, copy the theme's `assets/css/style.scss` to the same path on your Jekyll site, and then add the custom style at the end of the style file.
 
-Starting from `v4.1.0`, if you want to overwrite the SASS variables defined in `_sass/addon/variables.scss`, create a new file `_sass/variables-hook.scss` and assign new values to the target variable in it.
+Starting from [`v4.1.0`][chirpy-4.1.0], if you want to overwrite the SASS variables defined in `_sass/addon/variables.scss`, create a new file `_sass/variables-hook.scss` and assign new values to the target variable in it.
 
 ### Running Local Server
 
@@ -108,55 +86,62 @@ $ bundle exec jekyll s
 
 Or run the site on Docker with the following command:
 
-```terminal
+```console
 $ docker run -it --rm \
     --volume="$PWD:/srv/jekyll" \
     -p 4000:4000 jekyll/jekyll \
     jekyll serve
 ```
 
-Open a browser and visit to _<http://localhost:4000>_.
+After a while, the local service will be published at _<http://127.0.0.1:4000>_.
 
 ### Deployment
 
-Before the deployment begins, checkout the file `_config.yml` and make sure the `url` is configured correctly. Furthermore, if you prefer the [**project site**](https://help.github.com/en/github/working-with-github-pages/about-github-pages#types-of-github-pages-sites) and don't use a custom domain, or you want to visit your website with a base URL on a web server other than **GitHub Pages**, remember to change the `baseurl` to your project name that starting with a slash, e.g, `/project-name`.
+Before the deployment begins, check out the file `_config.yml` and make sure the `url` is configured correctly. Furthermore, if you prefer the [**project site**](https://help.github.com/en/github/working-with-github-pages/about-github-pages#types-of-github-pages-sites) and don't use a custom domain, or you want to visit your website with a base URL on a web server other than **GitHub Pages**, remember to change the `baseurl` to your project name that starts with a slash, e.g, `/project-name`.
 
 Now you can choose ONE of the following methods to deploy your Jekyll site.
 
-#### Deploy on GitHub Pages
+#### Deploy by Using Github Actions
 
-For security reasons, GitHub Pages build runs on `safe` mode, which restricts us from using plugins to generate additional page files. Therefore, we can use **GitHub Actions** to build the site, store the built site files on a new branch, and use that branch as the source of the GH Pages service.
+For security reasons, GitHub Pages build runs on `safe` mode, which restricts us from using plugins to generate additional page files. Therefore, we can use **GitHub Actions** to build the site, store the built site files on a new branch, and use that branch as the source of the GitHub Pages service.
 
 Quickly check the files needed for GitHub Actions build:
 
-- Ensure your Jekyll site has the file `.github/workflows/pages-deploy.yml`. Otherwise, create a new one and fill in the contents of the [workflow file][workflow], and the value of the `on.push.branches` should be the same as your repo's default branch name.
-- Ensure your Jekyll site has file `tools/test.sh` and `tools/deploy.sh`. Otherwise, copy them from this repo to your Jekyll site.
+- Ensure your Jekyll site has the file `.github/workflows/pages-deploy.yml`. Otherwise, create a new one and fill in the contents of the [sample file][workflow], and the value of the `on.push.branches` should be the same as your repo's default branch name.
 
-And then rename your repository to `<GH-USERNAME>.github.io` on GitHub.
+- Ensure your Jekyll site has file `tools/deploy.sh`. Otherwise, copy it from here to your Jekyll site.
+
+- Furthermore, if you have committed `Gemfile.lock` to the repo, and your runtime system is not Linux, don't forget to update the platform list in the lock file:
+
+  ```console
+  $ bundle lock --add-platform x86_64-linux
+  ```
+
+After the above steps, rename your repository to `<GH_USERNAME>.github.io` on GitHub.
 
 Now publish your Jekyll site by:
 
 1. Push any commit to remote to trigger the GitHub Actions workflow. Once the build is complete and successful, a new remote branch named `gh-pages` will appear to store the built site files.
 
-2. Browse to your repo's landing page on GitHub and select the branch `gh-pages` as the [publishing source](https://docs.github.com/en/github/working-with-github-pages/configuring-a-publishing-source-for-your-github-pages-site) through _Settings_ → _Options_ → _GitHub Pages_:
+2. Browse to your repository on GitHub. Select the tab _Settings_, then click _Pages_ in the left navigation bar, and then in the section **Source** of _GitHub Pages_, select the `/(root)` directory of branch `gh-pages` as the [publishing source][pages-src]. Remember to click <kbd>Save</kbd> before leaving.
 
-    ![gh-pages-sources](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190809/gh-pages-sources.png){: width="850" height="153" }
+    ![gh-pages-sources](/posts/20190809/gh-pages-sources.png){: width="1580" height="250" }
 
 3. Visit your website at the address indicated by GitHub.
 
-#### Deploy on Other Platforms
+#### Manually Build and Deploy
 
-On platforms other than GitHub, we cannot enjoy the convenience of **GitHub Actions**. Therefore, we should build the site locally (or on some other 3rd-party CI platform) and then put the site files on the server.
+On self-hosted servers, you cannot enjoy the convenience of **GitHub Actions**. Therefore, you should build the site on your local machine and then upload the site files to the server.
 
-Go to the root of the source project, build your site by:
+Go to the root of the source project, and build your site as follows:
 
 ```console
 $ JEKYLL_ENV=production bundle exec jekyll b
 ```
 
-Or build the site with Docker by:
+Or build the site on Docker:
 
-```terminal
+```console
 $ docker run -it --rm \
     --env JEKYLL_ENV=production \
     --volume="$PWD:/srv/jekyll" \
@@ -164,8 +149,34 @@ $ docker run -it --rm \
     jekyll build
 ```
 
-Unless you specified the output path, the generated site files will be placed in folder `_site` of the project's root directory. Now you should upload those files to your web server.
+Unless you specified the output path, the generated site files will be placed in folder `_site` of the project's root directory. Now you should upload those files to the target server.
+
+### Upgrading
+
+It depends on how you use the theme:
+
+- If you are using the theme gem (there will be `gem "jekyll-theme-chirpy"` in the `Gemfile`), editing the `Gemfile` and update the version number of the theme gem, for example:
+
+  ```diff
+  - gem "jekyll-theme-chirpy", "~> 3.2", ">= 3.2.1"
+  + gem "jekyll-theme-chirpy", "~> 3.3", ">= 3.3.0"
+  ```
+  {: .nolineno file="Gemfile" }
+
+  And then execute the following command:
+
+  ```console
+  $ bundle update jekyll-theme-chirpy
+  ```
+
+  As the version upgrades, the critical files (for details, see the [Startup Template][starter]) and configuration options will change. Please refer to the [Upgrade Guide](https://github.com/cotes2020/jekyll-theme-chirpy/wiki/Upgrade-Guide) to keep your repo's files in sync with the latest version of the theme.
+
+- If you forked from the source project (there will be `gemspec` in the `Gemfile` of your site), then merge the [latest upstream tags][latest-tag] into your Jekyll site to complete the upgrade.
+The merge is likely to conflict with your local modifications. Please be patient and careful to resolve these conflicts.
 
 [starter]: https://github.com/cotes2020/chirpy-starter
 [use-starter]: https://github.com/cotes2020/chirpy-starter/generate
 [workflow]: https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/.github/workflows/pages-deploy.yml.hook
+[chirpy-4.1.0]: https://github.com/cotes2020/jekyll-theme-chirpy/releases/tag/v4.1.0
+[pages-src]: https://docs.github.com/en/github/working-with-github-pages/configuring-a-publishing-source-for-your-github-pages-site
+[latest-tag]: https://github.com/cotes2020/jekyll-theme-chirpy/tags

_posts/2019-08-11-customize-the-favicon.md

@@ -1,16 +1,18 @@
 ---
 title: Customize the Favicon
-author: Cotes Chung
+author:
+  name: Cotes Chung
+  link: https://github.com/cotes2020
 date: 2019-08-11 00:34:00 +0800
 categories: [Blogging, Tutorial]
 tags: [favicon]
 ---
 
-The [favicons](https://www.favicon-generator.org/about/) of [**Chirpy**](https://github.com/cotes2020/jekyll-theme-chirpy/) are placed in the directory `assets/img/favicons/`. You may need to replace them with your own. The following sections will guide you how to create and replace the default favicons.
+The [favicons](https://www.favicon-generator.org/about/) of [**Chirpy**](https://github.com/cotes2020/jekyll-theme-chirpy/) are placed in the directory `assets/img/favicons/`. You may want to replace them with your own. The following sections will guide you to create and replace the default favicons.
 
 ## Generate the favicon
 
-Prepare a square image (PNG, JPG, or SVG) with a size of 512x512 or more, and then go to the online tool [**Real Favicon Generator**](https://realfavicongenerator.net/) and click button <kbd>Select your Favicon image</kbd> to upload your image file.
+Prepare a square image (PNG, JPG, or SVG) with a size of 512x512 or more, and then go to the online tool [**Real Favicon Generator**](https://realfavicongenerator.net/) and click the button <kbd>Select your Favicon image</kbd> to upload your image file.
 
 In the next step, the webpage will show all usage scenarios. You can keep the default options, scroll to the bottom of the page, and click the button <kbd>Generate your Favicons and HTML code</kbd> to generate the favicon.
 
@@ -21,16 +23,14 @@ Download the generated package, unzip and delete the following two from the extr
 - `browserconfig.xml`
 - `site.webmanifest`
 
-Now, copy the remaining image files (`PNG` and `ICO`) to cover the original files in the folder `assets/img/favicons/` of your Jekyll site.
+And then copy the remaining image files (`PNG` and `ICO`) to cover the original files in the directory `assets/img/favicons/` of your Jekyll site. If your Jekyll site doesn't have this directory yet, just create one.
 
-The following table will helps you understand the changes to the favicon files:
+The following table will help you understand the changes to the favicon files:
 
 | File(s)             | From Online Tool                  | From Chirpy |
 |---------------------|:---------------------------------:|:-----------:|
 | `*.PNG`             | ✓                                 | ✗           |
 | `*.ICO`             | ✓                                 | ✗           |
-| `browserconfig.xml` | ✗                                 | ✓           |
-| `site.webmanifest`  | ✗                                 | ✓           |
 
 > Note: ✓ means keep, ✗ means delete.
 

_posts/2021-01-03-enable-google-pv.md

@@ -1,6 +1,8 @@
 ---
 title: Enable Google Page Views
-author: Dinesh Prasanth Moluguwan Krishnamoorthy
+author:
+  name: Dinesh Prasanth Moluguwan Krishnamoorthy
+  link: https://github.com/SilleBille
 date: 2021-01-03 18:32:00 -0500
 categories: [Blogging, Tutorial]
 tags: [google analytics, pageviews]
@@ -13,27 +15,27 @@ This post is to enable Page Views on the [**Chirpy**][chirpy-homepage] theme bas
 
 ### Create GA account and property
 
-First, you need to setup your account on Google analytics. While your create your account, you must create your first **Property** as well.
+First, you need to set up your account on Google analytics. While you create your account, you must create your first **Property** as well.
 
 1. Head to <https://analytics.google.com/> and click on **Start Measuring**
 2. Enter your desired _Account Name_ and choose the desired checkboxes
 3. Enter your desired _Property Name_. This is the name of the tracker project that appears on your Google Analytics dashboard
 4. Enter the required information _About your business_
-5. Hit _Create_ and accept any license popup to setup your Google Analytics account and create your property
+5. Hit _Create_ and accept any license popup to set up your Google Analytics account and create your property
 
 ### Create Data Stream
 
-With your property created, you now need to set up Data Stream to track your blog traffic. After you signup, the prompt should automatically take you to creating your first **Data Stream**. If not, follow these steps:
+With your property created, you now need to set up Data Stream to track your blog traffic. After you signup, the prompt should automatically take you to create your first **Data Stream**. If not, follow these steps:
 
 1. Go to **Admin** on the left column
-2. Select the desired property from the drop down on the second column
+2. Select the desired property from the drop-down on the second column
 3. Click on **Data Streams**
 4. Add a stream and click on **Web**
 5. Enter your blog's URL
 
 It should look like this:
 
-![google-analytics-data-stream](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20210103/01-google-analytics-data-stream.png){: width="1086" height="542"}
+![google-analytics-data-stream](/posts/20210103/01-google-analytics-data-stream.png){: width="1086" height="542"}
 
 Now, click on the new data stream and grab the **Measurement ID**. It should look something like `G-V6XXXXXXXX`. Copy this to your `_config.yml` file
 
@@ -45,14 +47,15 @@ google_analytics:
     proxy_endpoint:   # fill in the Google Analytics superProxy endpoint of Google App Engine
     cache_path:       # the local PV cache data, friendly to visitors from GFW region
 ```
+{: file="_config.yml"}
 
-When you push these changes to your blog, you should start seeing the traffic on your Google Analytics. Play around with Google Analytics dashboard to get familiar with the options available as it takes like 5 mins to pickup your changes. You should now be able to monitor your traffic in realtime.
+When you push these changes to your blog, you should start seeing the traffic on your Google Analytics. Play around with the Google Analytics dashboard to get familiar with the options available as it takes like 5 mins to pick up your changes. You should now be able to monitor your traffic in real time.
 
-![google-analytics-realtime](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20210103/02-google-analytics-realtime.png){: width="616" height="557"}
+![google-analytics-realtime](/posts/20210103/02-google-analytics-realtime.png){: width="616" height="557"}
 
 ## Setup Page Views
 
-There is a detailed [tutorial](https://developers.google.com/analytics/solutions/google-analytics-super-proxy) available to set up Google Analytics superProxy. But, if you are interested to just quickly get your Chirpy-based blog display page views, follow along. These steps were tested on a Linux machine. If you are running Windows, you can use Git bash terminal to run Unix-like commands.
+There is a detailed [tutorial](https://developers.google.com/analytics/solutions/google-analytics-super-proxy) available to set up Google Analytics superProxy. But, if you are interested to just quickly get your Chirpy-based blog display page views, follow along. These steps were tested on a Linux machine. If you are running Windows, you can use the Git bash terminal to run Unix-like commands.
 
 ### Setup Google App Engine
 
@@ -66,7 +69,7 @@ There is a detailed [tutorial](https://developers.google.com/analytics/solutions
 
 5. Select **Python** language and **Standard** environment
 
-6. Enable billing account. Yeah, you have to link your credit card. But, you won't be billed unless you exceed your free quota. For a simple blog, free quota is more than sufficient.
+6. Enable billing account. Yeah, you have to link your credit card. But, you won't be billed unless you exceed your free quota. For a simple blog, the free quota is more than sufficient.
 
 7. Go to your App Engine dashboard on your browser and select **API & Services** from the left navigation menu
 
@@ -76,7 +79,7 @@ There is a detailed [tutorial](https://developers.google.com/analytics/solutions
 
 10. On the left, Click on _OAuth Consent Screen_ and accept **Configure Consent Screen**. Select **External** since your blog is probably hosted for the public. Click on **Publish** under _Publishing Status_
 
-11. Click on **Credentials** on the left and create a new **OAuth Client IDs** credential. Make sure to add a entry under `Authorized redirect URIs` that matches: `https://<project-id>.<region>.r.appspot.com/admin/auth`
+11. Click on **Credentials** on the left and create a new **OAuth Client IDs** credential. Make sure to add an entry under `Authorized redirect URIs` that matches: `https://<project-id>.<region>.r.appspot.com/admin/auth`
 
 12. Note down the **Your Client ID** and **Your Client Secret**. You'll need this in the next section.
 
@@ -112,15 +115,16 @@ There is a detailed [tutorial](https://developers.google.com/analytics/solutions
 
 1. Clone the **Google Analytics superProxy** project on Github: <https://github.com/googleanalytics/google-analytics-super-proxy> to your local.
 
-2. Remove the first 2 lines in the [`src/app.yaml`](https://github.com/googleanalytics/google-analytics-super-proxy/blob/master/src/app.yaml#L1-L2) file:
-  ```diff
-- application: your-project-id
-- version: 1
-  ```
+2.  Remove the first 2 lines in the [`src/app.yaml`](https://github.com/googleanalytics/google-analytics-super-proxy/blob/master/src/app.yaml#L1-L2) file:
 
-3. In `src/config.py`, add the `OAUTH_CLIENT_ID` and `OAUTH_CLIENT_SECRET` that you gathered from you App Engine Dashboard.
+    ```diff
+    - application: your-project-id
+    - version: 1
+    ```
 
-4. Enter any random key for `XSRF_KEY`, your `config.py` should look similar to this
+3. In `src/config.py`, add the `OAUTH_CLIENT_ID` and `OAUTH_CLIENT_SECRET` that you gathered from your App Engine Dashboard.
+
+4.  Enter any random key for `XSRF_KEY`, your `config.py` should look similar to this
 
     ```python
     #!/usr/bin/python2.7
@@ -140,10 +144,11 @@ There is a detailed [tutorial](https://developers.google.com/analytics/solutions
     # XSRF Settings
     XSRF_KEY = 'OnceUponATimeThereLivedALegend'
     ```
+    {: file="src/config.py"}
 
     **Tip:** You can configure a custom domain instead of `https://PROJECT_ID.REGION_ID.r.appspot.com`. But, for the sake of keeping it simple, we will be using the Google provided default URL.
 
-5. From inside the src/ directory, deploy the app
+5.  From inside the src/ directory, deploy the app
 
     ```console
     [root@bc96abf71ef8 src]# gcloud app deploy
@@ -183,7 +188,7 @@ There is a detailed [tutorial](https://developers.google.com/analytics/solutions
 
 If everything went good, you'll get this screen:
 
-![superProxy-deployed](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20210103/03-superProxy-deployed.png){: width="1366" height="354"}
+![superProxy-deployed](/posts/20210103/03-superProxy-deployed.png){: width="1366" height="354"}
 
 ### Create Google Analytics Query
 
@@ -200,22 +205,21 @@ In order to reduce the returned results and reduce the network bandwidth, we add
 
 - **filters**: fill in `ga:pagePath=~^/posts/.*/$;ga:pagePath!@=`.
 
-    Among them, `;` means using _logical AND_ to concatenate two rules.
+  Among them, `;` means using _logical AND_ to concatenate two rules.
 
-    If the `site.baseurl` is specified, change the first filtering rule to `ga:pagePath=~^/BASE_URL/posts/.*/$`, where `BASE_URL` is the value of `site.baseurl`.
+  If the `site.baseurl` is specified, change the first filtering rule to `ga:pagePath=~^/BASE_URL/posts/.*/$`, where `BASE_URL` is the value of `site.baseurl`.
 
-After <kbd>Run Query</kbd>, copy the generated contents of **API Query URI** at the bottom of the page, and fill in the **Encoded URI for the query** of SuperProxy on GAE.
+After <kbd>Run Query</kbd>, copy the generated contents of **API Query URI** at the bottom of the page and fill in the **Encoded URI for the query** of SuperProxy on GAE.
 
 After the query is saved on GAE, a **Public Endpoint** (public access address) will be generated, and we will get the query result in JSON format when accessing it. Finally, click <kbd>Enable Endpoint</kbd> in **Public Request Endpoint** to make the query effective, and click <kbd>Start Scheduling</kbd> in **Scheduling** to start the scheduled task.
 
-![superproxy-query](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20210103/04-superproxy-query.png){: width="1100" height="126"}
-
+![superproxy-query](/posts/20210103/04-superproxy-query.png){: width="1100" height="126"}
 
 ## Configure Chirpy to Display Page View
 
 Once all the hard part is done, it is very easy to enable the Page View on Chirpy theme. Your superProxy dashboard should look something like below and you can grab the required values.
 
-![superproxy-dashboard](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20210103/05-superproxy-dashboard.png){: width="1210" height="694"}
+![superproxy-dashboard](/posts/20210103/05-superproxy-dashboard.png){: width="1210" height="694"}
 
 Update the `_config.yml` file of [**Chirpy**][chirpy-homepage] project with the values from your dashboard, to look similar to the following:
 
@@ -226,6 +230,7 @@ google_analytics:
     proxy_endpoint: 'https://PROJECT_ID.REGION_ID.r.appspot.com/query?id=<ID FROM SUPER PROXY>'
     cache_path:       # the local PV cache data, friendly to visitors from GFW region
 ```
+{: file="_config.yml"}
 
 Now, you should see the Page View enabled on your blog.
 

_sass/addon/module.scss

@@ -10,6 +10,46 @@
   font-family: 'Lato', 'Microsoft Yahei', sans-serif;
 }
 
+%section {
+  #core-wrapper & {
+    margin-top: 2.5rem;
+    margin-bottom: 2rem;
+  }
+}
+
+%anchor {
+  .anchor {
+    font-size: 1rem;
+    margin-left: 0.5rem;
+  }
+
+  @media (hover: hover) {
+    .anchor {
+      border-bottom: none !important;
+      visibility: hidden;
+      opacity: 0;
+      transition: opacity 0.25s ease-in, visibility 0s ease-in 0.25s;
+    }
+
+    &:hover {
+      .anchor {
+        visibility: visible;
+        opacity: 1;
+        transition: opacity 0.25s ease-in, visibility 0s ease-in 0s;
+      }
+    }
+  }
+}
+
+%anchor-relative {
+  @extend %anchor;
+
+  .anchor {
+    position: relative;
+    bottom: 1px;
+  }
+}
+
 %tag-hover {
   background: var(--tag-hover);
   transition: background 0.35s ease-in-out;
@@ -35,20 +75,24 @@
   border-bottom: 1px solid var(--link-underline-color);
 }
 
+%clickable-transition {
+  transition: color 0.35s ease-in-out;
+}
+
+%no-cursor {
+  user-select: none;
+}
+
 %no-bottom-border {
   border-bottom: none;
 }
 
-%section {
-  #post-wrapper & {
-    line-height: 1.2;
-    margin-bottom: 1rem;
-  }
+%cursor-pointer {
+  cursor: pointer;
 }
 
-%anchor {
-  padding-top: 3.5rem;
-  margin-top: -2.5rem;
+%normal-font-style {
+  font-style: normal;
 }
 
 /* ---------- scss mixin --------- */
@@ -57,19 +101,11 @@
   text-decoration: none;
 }
 
-@mixin sidebar-links($color: rgba(255, 255, 255, 0.5)) {
-  color: $color;
-  transition: color 0.35s ease-in-out;
+%sidebar-links {
+  color: rgba(117, 117, 117, 0.9);
   user-select: none;
 }
 
-@mixin icon-round($diameter) {
-  border: 1px solid;
-  border-radius: 50%;
-  width: $diameter;
-  height: $diameter;
-}
-
 @mixin ml-mr($value) {
   margin-left: $value;
   margin-right: $value;
@@ -84,28 +120,12 @@
   opacity: 0.6;
 }
 
-@mixin semi-bold {
-  font-weight: 600;
-}
-
 @mixin label($font-size: 1rem, $font-weight: 600, $color: var(--label-color)) {
   color: $color;
   font-size: $font-size;
   font-weight: $font-weight;
 }
 
-@mixin panel-label {
-  @include label(inherit);
-
-  display: block;
-  line-height: 1.2;
-  padding-top: 0.5rem;
-  padding-bottom: 0.5rem;
-  margin-top: 0;
-  margin-bottom: 0;
-  letter-spacing: -0.02em;
-}
-
 @mixin align-center {
   position: relative;
   left: 50%;

_sass/addon/syntax.scss

@@ -27,22 +27,19 @@ html[mode=dark] {
 
 /* -- Codes Snippet -- */
 
+$code-radius: 6px;
+
 %code-snippet-bg {
   background: var(--highlight-bg-color);
 }
 
 %code-snippet-radius {
-  border-radius: 6px;
+  border-radius: $code-radius;
 }
 
 %code-snippet-padding {
-  padding: 1.5rem;
-}
-
-div > pre {
-  @extend %code-snippet-bg;
-  @extend %code-snippet-radius;
-  @extend %code-snippet-padding;
+  padding-left: 1rem;
+  padding-right: 1.5rem;
 }
 
 .highlighter-rouge {
@@ -63,6 +60,8 @@ div > pre {
   }
 
   overflow: auto;
+  padding-top: 0.5rem;
+  padding-bottom: 1rem;
 
   pre {
     margin-bottom: 0;
@@ -72,26 +71,17 @@ div > pre {
   }
 
   table {
-    padding: 0;
-    border: 0;
     td pre {
       overflow: visible;  /* Fixed iOS safari overflow-x */
       word-break: normal; /* Fixed iOS safari linenos code break */
     }
   }
 
-  td {
-    padding: 0;
-    border: 0;
-  }
-
   .lineno {
-    margin-left: 0.2rem;
     padding-right: 0.5rem;
     min-width: 2.2rem;
     text-align: right;
     color: var(--highlight-lineno-color);
-    border-right: 1px solid var(--highlight-lineno-border-color);
     -webkit-user-select: none;
     -khtml-user-select: none;
     -moz-user-select: none;
@@ -120,22 +110,26 @@ code {
     background-color: var(--inline-code-bg);
   }
 
-  @at-root a > &.highlighter-rouge {
+  a > &.highlighter-rouge {
     padding-bottom: 0; // show link's underlinke
     color: inherit;
   }
 
-  @at-root a:hover > &.highlighter-rouge {
+  a:hover > &.highlighter-rouge {
     border-bottom: none;
   }
 
   blockquote &.highlighter-rouge {
     color: inherit;
   }
+
+  .highlight > & {
+    color: transparent;
+  }
 }
 
 td.rouge-code {
-  padding: 1.5rem 1.5rem 1.5rem 1rem;
+  @extend %code-snippet-padding;
 
   // Prevent some browser extends from
   // changing the URL string of code block.
@@ -152,35 +146,130 @@ div {
   &[class^='highlighter-rouge'],
   &.language-plaintext.highlighter-rouge,
   &.language-console.highlighter-rouge,
-  &.language-terminal.highlighter-rouge {
+  &.language-terminal.highlighter-rouge,
+  &.nolineno {
     pre.lineno {
       display: none;
     }
+
     td.rouge-code {
-      @extend %code-snippet-padding;
+      padding-left: 1.5rem;
     }
   }
 }
 
-div[class^='language-']::before {
-  content: attr(lang);
-  position: absolute;
-  right: 2rem;
-  margin-top: 3px;
-  font-size: 0.7rem;
-  font-weight: 600;
-  color: var(--highlight-lineno-color);
-  text-transform: uppercase;
+.code-header {
+  @extend %no-cursor;
+
+  $code-header-height: 2.25rem;
+
+  border-top-left-radius: $code-radius;
+  border-top-right-radius: $code-radius;
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  height: $code-header-height;
+
+  &::before {
+    $dot-size: 0.75rem;
+    $dot-margin: 0.5rem;
+
+    content: "";
+    display: inline-block;
+    margin-left: 1rem;
+    width: $dot-size;
+    height: $dot-size;
+    border-radius: 50%;
+    background-color: var(--code-header-muted-color);
+    box-shadow:
+      ($dot-size + $dot-margin) 0 0 var(--code-header-muted-color),
+      ($dot-size + $dot-margin) * 2 0 0 var(--code-header-muted-color);
+  }
+
+  // the label block
+  span {
+    // label icon
+    i {
+      font-size: 1rem;
+      margin-right: 0.4rem;
+      color: var(--code-header-icon-color);
+
+      &.small {
+        font-size: 70%;
+      }
+    }
+
+    @at-root [file] #{&} > i {
+      position: relative;
+      top: 1px; // center the file icon
+    }
+
+    // label text
+    &::after {
+      content: attr(label-text);
+      font-size: 0.85rem;
+      font-weight: 600;
+      color: var(--code-header-text-color);
+    }
+  }
+
+  // clipboard
+  button {
+    @extend %cursor-pointer;
+
+    border: 1px solid transparent;
+    border-radius: $code-radius;
+    height: $code-header-height;
+    width: $code-header-height;
+    padding: 0;
+    background-color: inherit;
+
+    i {
+      color: var(--code-header-icon-color);
+    }
+
+    &[timeout] {
+      &:hover {
+        border-color: var(--clipboard-checked-color);
+      }
+
+      i {
+        color: var(--clipboard-checked-color);
+      }
+    }
+
+    &:not([timeout]):hover {
+      background-color: rgba(128, 128, 128, 0.37);
+
+      i {
+        color: white;
+      }
+    }
+
+    &:focus {
+      outline: none;
+    }
+
+  }
+
 }
 
-@media (min-width: 768px) {
-  div[class^='language-']::before {
-    right: 3.1rem;
-  }
-}
+@media all and (max-width: 576px) {
+  .post-content {
+    > div[class^='language-'] {
+      @include ml-mr(-1.25rem);
 
-@media (min-width: 1650px) {
-  div[class^='language-']::before {
-    right: 3.5rem;
+      border-radius: 0;
+
+      .highlight {
+        padding-left: 0.25rem;
+      }
+
+      .code-header {
+        border-radius: 0;
+        padding-left: 0.4rem;
+        padding-right: 0.5rem;
+      }
+    }
   }
 }

_sass/addon/variables.scss

@@ -11,10 +11,10 @@ $sidebar-width-large: 350px !default;  // screen width: >= 1650px
 /* tabs of sidebar */
 
 $tab-count: 5 !default;   // backward compatible (version <= 4.0.2)
-$tab-height: 3.2rem !default;
+$tab-height: 3rem !default;
 $tab-cursor-height: 1.6rem !default;
 
-$cursor-width: 3px !default;    // the cursor width of the selected tab
+$cursor-width: 2px !default;    // the cursor width of the selected tab
 
 /* other framework sizes */
 
@@ -27,7 +27,7 @@ $main-content-max-width: 1150px !default;
 
 $panel-max-width: 300px !default;
 
-$post-extend-min-height: 35rem !default;
+$bottom-min-height: 35rem !default;
 
 /* syntax highlight */
 

_sass/colors/dark-syntax.scss

@@ -3,20 +3,6 @@
  */
 
 @mixin dark-syntax {
-  /* -----  My styles ------ */
-  --highlight-bg-color: #252525;
-  --highlighter-rouge-color: #de6b18;
-  --highlight-lineno-color: #6c6c6d;
-  --highlight-lineno-border-color: #303435;
-  --inline-code-bg: #272822;
-
-  .highlight {
-    .gp { color: #818c96; }
-  }
-
-  pre { color: #bfbfbf; } /* override Bootstrap */
-  kbd { background-color: black; }
-
   /* syntax highlight colors from https://raw.githubusercontent.com/jwarby/pygments-css/master/monokai.css */
   .highlight pre { background-color: var(--highlight-bg-color); }
   .highlight .hll { background-color: var(--highlight-bg-color); }
@@ -81,4 +67,21 @@
   .highlight .gu { color: #75715e; } /* Generic.Subheading & Diff Unified/Comment? */
   .highlight .gd { color: #f92672; background-color: #561c08; } /* Generic.Deleted & Diff Deleted */
   .highlight .gi { color: #a6e22e; background-color: #0b5858; } /* Generic.Inserted & Diff Inserted */
+
+  /* -----  custom styles ------ */
+
+  --highlight-bg-color: #252525;
+  --highlighter-rouge-color: #de6b18;
+  --highlight-lineno-color: #6c6c6d;
+  --inline-code-bg: #272822;
+  --code-header-text-color: #6a6a6a;
+  --code-header-muted-color: rgb(60 60 60);
+  --code-header-icon-color: rgb(86 86 86);
+  --clipboard-checked-color: #2bcc2b;
+
+  .highlight {
+    .gp { color: #818c96; }
+  }
+
+  pre { color: #bfbfbf; } /* override Bootstrap */
 }

_sass/colors/dark-typography.scss

@@ -3,26 +3,21 @@
  */
 
 @mixin dark-scheme {
-  /* framework */
-  --main-wrapper-bg: rgb(27, 27, 30);
+  /* Framework color */
   --body-bg: var(--main-wrapper-bg);
-  --topbar-wrapper-bg: rgb(39, 40, 43);
-  --search-wrapper-bg: rgb(34, 34, 39);
-  --search-icon-color: rgb(100, 102, 105);
-  --input-focus-border-color: rgb(112, 114, 115);
   --mask-bg: rgb(68, 69, 70);
-  --footer-bg-color: var(--main-wrapper-bg);
-
-  /* common color */
-  --text-color: rgb(175, 176, 177);
-  --heading-color: #cccccc;
-  --text-muted-color: rgb(107, 116, 124);
-  --link-color: rgb(138, 180, 248);
-  --link-underline-color: rgb(82, 108, 150);
+  --main-wrapper-bg: rgb(27, 27, 30);
   --main-border-color: rgb(44, 45, 45);
-  --button-bg: rgb(39, 40, 43);
+
+  /* Common color */
+  --text-color: rgb(175, 176, 177);
+  --text-muted-color: rgb(107, 116, 124);
+  --heading-color: #cccccc;
   --blockquote-border-color: rgb(66, 66, 66);
   --blockquote-text-color: rgb(117, 117, 117);
+  --link-color: rgb(138, 180, 248);
+  --link-underline-color: rgb(82, 108, 150);
+  --button-bg: rgb(39, 40, 43);
   --btn-border-color: rgb(63, 65, 68);
   --btn-backtotop-color: var(--text-color);
   --btn-backtotop-border-color: var(--btn-border-color);
@@ -33,21 +28,26 @@
   --checkbox-checked-color: var(--link-color);
 
   /* Sidebar */
-  --nav-cursor-color: rgb(183, 182, 182);
   --sidebar-bg: radial-gradient(circle, #242424 0%, #1d1f27 100%);
+  --sidebar-muted-color: #6d6c6b;
+  --sidebar-active-color: rgb(255 255 255 / 80%);
+  --nav-cursor-color: rgb(183, 182, 182);
+  --sidebar-btn-bg: rgb(117 116 116 / 20%);
 
-  /* Top Bar */
+  /* Topbar */
   --topbar-text-color: var(--text-color);
+  --topbar-wrapper-bg: rgb(39, 40, 43);
+  --search-wrapper-bg: rgb(34, 34, 39);
+  --search-wrapper-border-color: rgb(34, 34, 39);
+  --search-icon-color: rgb(100, 102, 105);
+  --input-focus-border-color: rgb(112, 114, 115);
 
   /* Home page */
   --post-list-text-color: rgb(175, 176, 177);
   --btn-patinator-text-color: var(--text-color);
   --btn-paginator-hover-color: rgb(64, 65, 66);
-  --btn-active-bg: rgba(28, 52, 94, 1);
-  --btn-active-border-color: rgb(66, 94, 138);
-  --btn-text-color: var(--text-color);
   --btn-paginator-border-color: var(--btn-border-color);
-  --btn-paginator-shadow: var(--main-wrapper-bg);
+  --btn-text-color: var(--text-color);
   --pin-bg: rgb(34 35 37);
   --pin-color: inherit;
 
@@ -65,6 +65,10 @@
   --card-bg: rgb(39, 40, 43);
   --card-border-color: rgb(53, 53, 60);
   --card-box-shadow: var(--main-wrapper-bg);
+  --preview-img-bg: radial-gradient(circle, rgb(22 22 24) 0%, rgb(32 32 32) 100%);
+  --kbd-wrap-color: #6a6a6a;
+  --kbd-text-color: #d3d3d3;
+  --kbd-bg-color: #242424;
 
   /* tags */
   --tag-border: rgb(59, 79, 88);
@@ -75,17 +79,15 @@
   /* categories */
   --categories-border: rgb(64, 66, 69);
   --categories-hover-bg: rgb(73, 75, 76);
+  --categories-icon-hover-color: white;
 
   /* archives */
   --timeline-node-bg: rgb(150, 152, 156);
   --timeline-color: rgb(63, 65, 68);
   --timeline-year-dot-color: var(--timeline-color);
 
-  /* Footer */
-  --footer-link: rgb(171, 171, 171);
-
-  .post-content img {
-    filter: brightness(90%);
+  .post img[data-src] {
+    filter: brightness(95%);
   }
 
   hr {
@@ -112,11 +114,13 @@
     .card-header {
       background-color: var(--card-header-bg);
     }
+
     .list-group-item {
       border-left: none;
       border-right: none;
       padding-left: 2rem;
       border-color: var(--categories-border);
+
       &:last-child {
         border-bottom-color: var(--card-bg);
       }
@@ -124,13 +128,21 @@
   }
 
   #archives li:nth-child(odd) {
-    background-image: linear-gradient(
-      to left,
-      rgb(26, 26, 30),
-      rgb(39, 39, 45),
-      rgb(39, 39, 45),
-      rgb(39, 39, 45),
-      rgb(26, 26, 30));
+    background-image:
+      linear-gradient(
+        to left,
+        rgb(26, 26, 30),
+        rgb(39, 39, 45),
+        rgb(39, 39, 45),
+        rgb(39, 39, 45),
+        rgb(26, 26, 30)
+      );
+  }
+
+  color-scheme: dark;
+
+  #disqus_thread {
+    color-scheme: none;
   }
 
 } // dark-scheme

_sass/colors/light-syntax.scss

@@ -70,6 +70,10 @@
   --highlight-bg-color: #f7f7f7;
   --highlighter-rouge-color: #2f2f2f;
   --highlight-lineno-color: #c2c6cc;
-  --highlight-lineno-border-color: #e9ecef;
   --inline-code-bg: #f3f3f3;
+  --code-header-text-color: #a3a3b1;
+  --code-header-muted-color: #ebebeb;
+  --code-header-icon-color: #d1d1d1;
+  --clipboard-checked-color: #43c743;
+
 } // light-syntax

_sass/colors/light-typography.scss

@@ -3,22 +3,22 @@
  */
 
 @mixin light-scheme {
-  /* Common */
+  /* Framework color */
   --body-bg: #fafafa;
   --mask-bg: #c1c3c5;
   --main-wrapper-bg: white;
   --main-border-color: #f3f3f3;
-  --btn-border-color: #e9ecef;
+
+  /* Common color */
   --text-color: #34343c;
+  --text-muted-color: gray;
   --heading-color: black;
   --blockquote-border-color: #eee;
   --blockquote-text-color: #9a9a9a;
   --link-color: #2a408e;
   --link-underline-color: #dee2e6;
-  --text-muted-color: gray;
-  --tb-odd-bg: #fbfcfd;
-  --tb-border-color: #eaeaea;
   --button-bg: #fff;
+  --btn-border-color: #e9ecef;
   --btn-backtotop-color: #686868;
   --btn-backtotop-border-color: #f1f1f1;
   --btn-box-shadow: #eaeaea;
@@ -26,16 +26,17 @@
   --checkbox-checked-color: #07a8f7;
 
   /* Sidebar */
-  --sidebar-bg: radial-gradient(
-    circle,
-    rgba(42, 30, 107, 1) 0%,
-    rgba(35, 37, 46, 1) 100%);
-  --nav-cursor-color: #fcfcfc;
+  --sidebar-bg: #eeeeee;
+  --sidebar-muted-color: #a2a19f;
+  --sidebar-active-color: #424242;
+  --nav-cursor-color: #757575;
+  --sidebar-btn-bg: white;
 
   /* Topbar */
-  --topbar-wrapper-bg: white;
   --topbar-text-color: rgb(78, 78, 78);
-  --search-wrapper-bg: #f5f5f5;
+  --topbar-wrapper-bg: white;
+  --search-wrapper-bg: rgb(245 245 245 / 50%);
+  --search-wrapper-border-color: rgb(245 245 245);
   --search-tag-bg: #f8f9fa;
   --search-icon-color: #c2c6cc;
   --input-focus-border-color: var(--btn-border-color);
@@ -43,12 +44,9 @@
   /* Home page */
   --post-list-text-color: dimgray;
   --btn-patinator-text-color: #555555;
-  --btn-paginator-hover-color: #e9ecef;
-  --btn-active-bg: #2a408e;
-  --btn-active-border-color: #007bff;
-  --btn-text-color: #f8f8f8;
-  --btn-paginator-border-color: #f1f1f1;
-  --btn-paginator-shadow: #4b92d2;
+  --btn-paginator-hover-color: var(--sidebar-bg);
+  --btn-paginator-border-color: var(--sidebar-bg);
+  --btn-text-color: #676666;
   --pin-bg: #f5f5f5;
   --pin-color: #999fa4;
 
@@ -58,20 +56,26 @@
   --card-box-shadow: rgba(234, 234, 234, 0.7686274509803922);
   --label-color: #616161;
   --relate-post-date: rgba(30, 55, 70, 0.4);
+  --footnote-target-bg: lightcyan;
   --tag-bg: rgba(0, 0, 0, 0.075);
   --tag-border: #dee2e6;
   --tag-shadow: var(--btn-border-color);
   --tag-hover: rgb(222, 226, 230);
-  --categories-hover-bg: var(--btn-border-color);
+  --tb-odd-bg: #fbfcfd;
+  --tb-border-color: #eaeaea;
   --dash-color: silver;
+  --preview-img-bg: radial-gradient(circle, rgb(255 255 255) 0%, rgb(249 249 249) 100%);
+  --kbd-wrap-color: #bdbdbd;
+  --kbd-text-color: var(--text-color);
+  --kbd-bg-color: white;
+
+  /* Categories */
+  --categories-hover-bg: var(--btn-border-color);
+  --categories-icon-hover-color: darkslategray;
 
   /* Archive */
   --timeline-color: rgba(0, 0, 0, 0.075);
   --timeline-node-bg: #c2c6cc;
   --timeline-year-dot-color: #ffffff;
 
-  /* Footer */
-  --footer-bg-color: #ffffff;
-  --footnote-target-bg: lightcyan;
-  --footer-link: #424242;
 } // light-scheme

_sass/jekyll-theme-chirpy.scss

@@ -1,7 +1,7 @@
 /*!
  * The styles for Jekyll theme Chirpy
  *
- * Chirpy v4.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy)
+ * Chirpy v5.0.2 (https://github.com/cotes2020/jekyll-theme-chirpy)
  * © 2019 Cotes Chung
  * MIT Licensed
  */

_sass/layout/archives.scss

@@ -41,6 +41,7 @@
     &:not(:first-child) {
       position: relative;
       left: 4px;
+
       &::after {
         left: 67px;
       }
@@ -98,6 +99,7 @@
   .date {
     white-space: nowrap;
     display: inline-block;
+
     &.month {
       width: 1.4rem;
       text-align: center;
@@ -120,6 +122,7 @@
         z-index: 1;
       }
     }
+
     &.day {
       font-size: 85%;
       font-family: 'Lato', sans-serif;
@@ -127,7 +130,7 @@
       margin-right: -2px;
       width: 1.2rem;
       position: relative;
-      left: -.15rem;
+      left: -0.15rem;
     }
   } // #archives .date
 
@@ -136,6 +139,7 @@
 @media all and (max-width: 576px) {
   #archives {
     margin-top: -1rem;
+
     ul {
       letter-spacing: 0;
     }

_sass/layout/categories.scss

@@ -8,24 +8,22 @@
 
 .categories {
   margin-bottom: 2rem;
+
   .card-header {
     padding-right: 12px;
   }
 
   i {
-    &.far,
-    &.fas {
-      font-size: 86%; // fontawesome icons
-    }
+    @extend %category-icon-color;
+
+    font-size: 86%; // fontawesome icons
   }
 
   .list-group-item {
     border-left: none;
     border-right: none;
     padding-left: 2rem;
-    > i {
-      @extend %category-icon-color;
-    }
+
     &:first-child {
       border-top-left-radius: 0;
       border-top-right-radius: 0;
@@ -33,10 +31,6 @@
 
   }
 
-  .card-header > span > i:first-child {
-    @extend %category-icon-color;
-  }
-
 } // .categories
 
 .category-trigger {
@@ -45,11 +39,18 @@
   border-radius: 50%;
   text-align: center;
   color: #6c757d !important;
-  > i.fas {
+
+  &:hover {
+    i {
+      color: var(--categories-icon-hover-color);
+    }
+  }
+
+  i {
     position: relative;
     height: 0.7rem;
     width: 1rem;
-    transition: 300ms ease all;
+    transition: transform 300ms ease;
   }
 }
 

_sass/layout/category-tag.scss

@@ -3,7 +3,7 @@
 */
 
 .dash {
-  margin: 0 .5rem .6rem .5rem;
+  margin: 0 0.5rem 0.6rem 0.5rem;
   border-bottom: 2px dotted var(--dash-color);
 }
 
@@ -60,8 +60,9 @@
   #page-tag {
     ul > li {
       &::before {
-        margin: 0 .5rem;
+        margin: 0 0.5rem;
       }
+
       > a {
         white-space: nowrap;
         overflow: hidden;

_sass/layout/home.scss

@@ -22,26 +22,29 @@
       border-radius: 50%;
       border: 1px solid var(--btn-paginator-border-color);
       background-color: var(--button-bg);
+
       &:hover {
         background-color: var(--btn-paginator-hover-color);
       }
     }
+
     &.active {
       .page-link {
-        background-color: var(--btn-active-bg);
-        border-color: var(--btn-active-border-color);
-        box-shadow: 0 0 8px 0 var(--btn-paginator-shadow) !important;
+        background-color: var(--btn-paginator-hover-color);
         color: var(--btn-text-color);
       }
     }
+
     &.disabled {
       cursor: not-allowed;
+
       .page-link {
         color: rgba(108, 117, 125, 0.57);
         border-color: var(--btn-paginator-border-color);
         background-color: var(--button-bg);
       }
     }
+
     &:first-child .page-link,
     &:last-child .page-link {
       border-radius: 50%;
@@ -71,9 +74,14 @@
     .post-meta {
       i {
         font-size: 0.73rem;
+
+        &:not(:first-child) {
+          margin-left: 1.2rem;
+        }
       }
-      span:not(:last-child) {
-        margin-right: 1.2rem;
+
+      em {
+        @extend %normal-font-style;
       }
     }
 
@@ -81,6 +89,7 @@
       margin-top: 0.6rem;
       margin-bottom: 0.6rem;
       color: var(--post-list-text-color);
+
       > p {
         /* Make preview shorter on the homepage */
         margin: 0;
@@ -98,13 +107,13 @@
         padding-left: 3px;
         color: var(--pin-color);
       }
+
       > span {
         display: none;
       }
     }
 
   } // .post-preview
-
 } // #post-list
 
 /* Hide SideBar and TOC */
@@ -124,9 +133,9 @@
 
 /* Sidebar is visible */
 @media all and (min-width: 831px) {
-
   #post-list {
     margin-top: 1.5rem;
+
     .post-preview .post-meta {
       .pin {
         background: var(--pin-bg);

_sass/layout/post.scss

@@ -16,27 +16,37 @@
   border-color: var(--btn-border-color);
 }
 
-@mixin dot($pl: 0.2rem, $pr: 0.4rem) {
+@mixin dot($pl: 0.25rem, $pr: 0.25rem) {
   content: "\2022";
-  color: rgba(158, 158, 158, 0.8);
   padding-left: $pl;
   padding-right: $pr;
 }
 
-#post-wrapper .post-meta {
-  > div:nth-child(2) {
-    > span:not(:first-child)::before {
-      @include dot;
+%text-color {
+  color: var(--text-color);
+}
+
+h1 + .post-meta {
+  span + span::before {
+    @include dot;
+  }
+
+  em {
+    @extend %text-color;
+
+    a {
+      @extend %text-color;
     }
   }
 }
 
-.post-content {
-  .preview-img {
-    @include align-center;
+img.preview-img {
+  margin-top: 3.75rem;
+  margin-bottom: 0;
+  border-radius: 6px;
 
-    margin-top: 0;
-    margin-bottom: 2.5rem !important;
+  &.bg[data-loaded=true] {
+    background: var(--preview-img-bg);
   }
 }
 
@@ -44,6 +54,10 @@
   margin-top: 6rem;
   border-bottom: 1px double var(--main-border-color);
   font-size: 0.85rem;
+
+  .post-meta a {
+    @extend %link-underline;
+  }
 }
 
 .post-tags {
@@ -109,7 +123,7 @@
     white-space: normal;
   }
 
-} // .post-navigation
+} /* .post-navigation */
 
 @keyframes fade-up {
   from {
@@ -131,22 +145,23 @@
   top: 4rem;
   transition: top 0.2s ease-in-out;
   animation: fade-up 0.8s;
-  &.topbar-down {
-    top: 6rem;
-  }
-  > span {
-    @include panel-label;
-  }
 }
 
-#toc li > a {
-  line-height: 1rem;
-  padding-top: 0.5rem;
-  padding-bottom: 0.5rem;
+#toc li a {
+  font-size: 0.8rem;
 
   &.nav-link:not(.active) {
     color: inherit;
   }
+
+}
+
+nav[data-toggle=toc] {
+  .nav {
+    .nav > li > a.active {
+      font-weight: 600 !important;
+    }
+  }
 }
 
 /* --- Related Posts --- */
@@ -155,6 +170,11 @@
   > h3 {
     @include label(1.1rem, 600);
   }
+
+  em {
+    @extend %normal-font-style;
+  }
+
   .card {
     border-color: var(--card-border-color);
     background-color: var(--card-bg);
@@ -162,9 +182,11 @@
     -webkit-transition: all 0.3s ease-in-out;
     -moz-transition: all 0.3s ease-in-out;
     transition: all 0.3s ease-in-out;
+
     h3 {
-      color: var(--text-color);
+      @extend %text-color;
     }
+
     &:hover {
       -webkit-transform: translate3d(0, -3px, 0);
       transform: translate3d(0, -3px, 0);
@@ -193,6 +215,7 @@
   ul {
     list-style-type: none;
     padding-inline-start: 1.5rem;
+
     > li::before {
       background: #c2c9d4;
       width: 5px;
@@ -207,11 +230,17 @@
   }
 }
 
-#post-extend-wrapper {
+#tail-wrapper {
   min-height: 2rem;
-  #disqus_thread {
+
+  > div:last-of-type {
     margin-bottom: 2rem;
   }
+
+  #disqus_thread {
+    min-height: 8.5rem;
+  }
+
 }
 
 .post-tail-bottom a {
@@ -228,45 +257,57 @@
 
   .share-icons {
     font-size: 1.2rem;
+
     a {
       &:not(:last-child) {
         margin-right: 0.25rem;
       }
+
       &:hover {
         text-decoration: none;
+
         > i {
           @extend %btn-share-hovor;
         }
       }
     }
+
     > i {
-      padding-top: 0.35rem;
+      position: relative;
+      bottom: 1px;
+
+      @extend %cursor-pointer;
+
       &:hover {
         @extend %btn-share-hovor;
       }
     }
+
     .fab {
       &.fa-twitter {
         @include btn-sharing-color(rgba(29, 161, 242, 1));
       }
+
       &.fa-facebook-square {
         @include btn-sharing-color(rgb(66, 95, 156));
       }
+
       &.fa-telegram {
         @include btn-sharing-color(rgb(39, 159, 217));
       }
+
       &.fa-weibo {
         @include btn-sharing-color(rgb(229, 20, 43));
       }
     }
 
-  } // .share-icons
+  } /* .share-icons */
 
   .fas.fa-link {
     @include btn-sharing-color(rgb(171, 171, 171));
   }
 
-} // .share-wrapper
+} /* .share-wrapper */
 
 .share-label {
   @include label(inherit, 400, inherit);
@@ -278,8 +319,10 @@
 
 .license-wrapper {
   line-height: 1.2rem;
+
   > a {
-    font-weight: 600;
+    color: var(--text-color);
+
     &:hover {
       @extend %link-hover;
     }
@@ -288,27 +331,23 @@
   span:last-child {
     font-size: 0.85rem;
   }
-} // .license-wrapper
+
+} /* .license-wrapper */
 
 @media all and (max-width: 576px) {
+  .preview-img[data-src] {
+    margin-top: 2.2rem;
+  }
+
   .post-tail-bottom {
     -ms-flex-wrap: wrap-reverse !important;
     flex-wrap: wrap-reverse !important;
-    >div:first-child {
+
+    > div:first-child {
       width: 100%;
       margin-top: 1rem;
     }
   }
-
-  .post-content > div[class^='language-'] {
-    @include ml-mr(-1.25rem);
-
-    border-radius: 0;
-    &::before { // the lang badge
-      right: 1rem;
-    }
-  }
-
 }
 
 @media all and (max-width: 768px) {
@@ -317,28 +356,17 @@
   }
 }
 
-@media all and (min-width: 768px) {
-  #post-wrapper {
-    .post-meta {
-      >div:not(:first-child)::before {
-        @include dot(0.5rem, 0.2rem);
-      }
-      &.flex-column {
-        -webkit-box-orient: horizontal !important;
-        -webkit-box-direction: normal !important;
-        -ms-flex-direction: row !important;
-        flex-direction: row !important;
-      }
-    }
-  } // .post
-}
-
 /* Hide SideBar and TOC */
-@media all and (max-width: 830px) {
+@media all and (max-width: 849px) {
   .post-navigation {
     padding-left: 0;
     padding-right: 0;
-    margin-left: -.5rem;
-    margin-right: -.5rem;
+    margin-left: -0.5rem;
+    margin-right: -0.5rem;
+  }
+
+  .preview-img[data-src] {
+    max-width: 100vw;
+    border-radius: 0;
   }
 }

_sass/layout/tags.scss

@@ -10,6 +10,7 @@
   letter-spacing: 0;
   border: 1px solid var(--tag-border) !important;
   box-shadow: 0 0 3px 0 var(--tag-shadow);
+
   span {
     margin-left: 0.6em;
     font-size: 0.7em;

_tabs/about.md

@@ -1,6 +1,6 @@
 ---
 title: About
-icon: fas fa-info
+icon: fas fa-info-circle
 order: 4
 ---
 

_tabs/tags.md

@@ -1,6 +1,6 @@
 ---
 layout: tags
 title: Tags
-icon: fas fa-tags
+icon: fas fa-tag
 order: 2
 ---

assets/404.html

@@ -11,19 +11,21 @@ redirect_from:
 dynamic_title: true
 ---
 
+{% include lang.html %}
+
 <div class="lead">
 
   {%- capture _head_back -%}
-    <a href="{{ '/' | relative_url }}">{{ site.data.locales[site.lang].not_found.head_back }}</a>
+    <a href="{{ '/' | relative_url }}">{{ site.data.locales[lang].not_found.head_back }}</a>
   {%- endcapture -%}
 
   {%- capture _archives_page -%}
-    <a href="{{ 'archives' | relative_url }}">{{ site.data.locales[site.lang].not_found.archives_page }}</a>
+    <a href="{{ 'archives' | relative_url }}">{{ site.data.locales[lang].not_found.archives_page }}</a>
   {%- endcapture -%}
 
-  <p>{{site.data.locales[site.lang].not_found.statment }}</p>
+  <p>{{site.data.locales[lang].not_found.statment }}</p>
 
-  <p>{{ site.data.locales[site.lang].not_found.hint_template
+  <p>{{ site.data.locales[lang].not_found.hint_template
     | replace: ':HEAD_BAK', _head_back
     | replace: ':ARCHIVES_PAGE', _archives_page }}
   </p>

assets/feed.xml

@@ -15,7 +15,7 @@ permalink: /feed.xml
     <uri>{{ "/" | absolute_url }}</uri>
   </author>
   <link rel="self" type="application/atom+xml" href="{{ page.url | absolute_url }}"/>
-  <link rel="alternate" type="text/html" hreflang="{{ site.content_lang | default: site.lang }}"
+  <link rel="alternate" type="text/html" hreflang="{{ site.lang }}"
     href="{{ '/' | absolute_url }}"/>
   <generator uri="https://jekyllrb.com/" version="{{ jekyll.version }}">Jekyll</generator>
   <rights> © {{ 'now' | date: '%Y' }} {{ site.social.name }} </rights>

assets/js/data/search.json

@@ -6,12 +6,12 @@ layout: compress
   {% for post in site.posts %}
   {
     "title": "{{ post.title | escape }}",
-    "url": "{{ site.baseurl }}{{ post.url }}",
+    "url": "{{ post.url | relative_url }}",
     "categories": "{{ post.categories | join: ', '}}",
     "tags": "{{ post.tags | join: ', ' }}",
     "date": "{{ post.date }}",
     {% include no-linenos.html content=post.content %}
-    "snippet": "{{ content | strip_html | strip_newlines | remove_chars | escape | truncate: 300 | replace: '\', '\\\\' }}"
+    "snippet": "{{ content | strip_html | strip_newlines | remove_chars | escape | replace: '\', '\\\\' }}"
   }{% unless forloop.last %},{% endunless %}
   {% endfor %}
 ]

assets/js/dist/categories.min.js

@@ -1,6 +1,6 @@
 /*!
- * Chirpy v4.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v5.0.2 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */
-$(function(){$(window).scroll(()=>{$(this).scrollTop()>50&&"none"===$("#sidebar-trigger").css("display")?$("#back-to-top").fadeIn():$("#back-to-top").fadeOut()}),$("#back-to-top").click(()=>($("body,html").animate({scrollTop:0},800),!1))}),$(function(){const o=$("#sidebar-trigger"),e=$("#search-trigger"),s=$("#search-cancel"),t=$("#search-cleaner"),a=$("#main"),l=$("#topbar-title"),n=$("#search-wrapper"),r=$("#search-result-wrapper"),d=$("#search-results"),i=$("#search-input"),c=$("#search-hints"),f=function(){let o=0;return{block(){o=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(o)},getOffset:()=>o}}(),u={on(){o.addClass("unloaded"),l.addClass("unloaded"),e.addClass("unloaded"),n.addClass("d-flex"),s.addClass("loaded")},off(){s.removeClass("loaded"),n.removeClass("d-flex"),o.removeClass("unloaded"),l.removeClass("unloaded"),e.removeClass("unloaded")}},p=function(){let o=!1;return{on(){o||(f.block(),r.removeClass("unloaded"),a.addClass("unloaded"),o=!0)},off(){o&&(d.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),r.addClass("unloaded"),t.removeClass("visible"),a.removeClass("unloaded"),f.release(),i.val(""),o=!1)},isVisible:()=>o}}();function h(){return s.hasClass("loaded")}e.click(function(){u.on(),p.on(),i.focus()}),s.click(function(){u.off(),p.off()}),i.focus(function(){n.addClass("input-focus")}),i.focusout(function(){n.removeClass("input-focus")}),i.on("keyup",function(o){8===o.keyCode&&""===i.val()?h()?c.removeClass("unloaded"):p.off():""!==i.val()&&(p.on(),t.hasClass("visible")||t.addClass("visible"),h()&&c.addClass("unloaded"))}),t.on("click",function(){i.val(""),h()?(c.removeClass("unloaded"),d.empty()):p.off(),i.focus(),t.removeClass("visible")})}),$(function(){const o=function(){let o=!1;const e=$("body");return{toggle(){!1===o?e.attr("sidebar-display",""):e.removeAttr("sidebar-display"),o=!o}}}();$("#sidebar-trigger").click(o.toggle),$("#mask").click(o.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const o=$("#topbar-wrapper"),e=$("#toc-wrapper"),s=$(".access"),t=$("#search-input");let a,l=0;const n=5,r=o.outerHeight();$(window).scroll(function(o){$("#topbar-title").is(":hidden")&&(a=!0)}),setInterval(function(){a&&(!function(){var a=$(this).scrollTop();Math.abs(l-a)<=n||(a>l&&a>r?(o.removeClass("topbar-down").addClass("topbar-up"),e.length>0&&e.removeClass("topbar-down"),s.length>0&&s.removeClass("topbar-down"),t.is(":focus")&&t.blur()):a+$(window).height()<$(document).height()&&(o.removeClass("topbar-up").addClass("topbar-down"),e.length>0&&e.addClass("topbar-down"),s.length>0&&s.addClass("topbar-down")),l=a)}(),a=!1)},250)}),$(function(){const o=$("#topbar-title"),e=$("div.post>h1"),s=o.text().trim();let t=e.length>0?e.text().trim():$("h1").text().trim();($("#page-category").length||$("#page-tag").length)&&/\s/.test(t)&&(t=t.replace(/[0-9]/g,"").trim()),$(window).scroll(function(){if($("#post-list").length||e.is(":hidden")||o.is(":hidden")||$("#sidebar.sidebar-expand").length)return!1;$(this).scrollTop()>=95?o.text()!==t&&o.text(t):o.text()!==s&&o.text(s)}),o.click(function(){$("body,html").animate({scrollTop:0},800)})}),$(function(){const o=$(".collapse");o.on("hide.bs.collapse",function(){const o="h_"+$(this).attr("id").substring("l_".length);o&&($(`#${o} .far.fa-folder-open`).attr("class","far fa-folder fa-fw"),$(`#${o} i.fas`).addClass("rotate"),$(`#${o}`).removeClass("hide-border-bottom"))}),o.on("show.bs.collapse",function(){const o="h_"+$(this).attr("id").substring("l_".length);o&&($(`#${o} .far.fa-folder`).attr("class","far fa-folder-open fa-fw"),$(`#${o} i.fas`).removeClass("rotate"),$(`#${o}`).addClass("hide-border-bottom"))})});
+$(function(){$(window).scroll(()=>{50<$(this).scrollTop()&&"none"===$("#sidebar-trigger").css("display")?$("#back-to-top").fadeIn():$("#back-to-top").fadeOut()}),$("#back-to-top").click(()=>($("body,html").animate({scrollTop:0},800),!1))}),$(function(){$(".mode-toggle").click(e=>{const o=$(e.target);let t=o.prop("tagName")==="button".toUpperCase()?o:o.parent();t.blur(),flipMode()})}),$(function(){const e=$("#sidebar-trigger"),o=$("#search-trigger"),t=$("#search-cancel"),s=$("#search-cleaner"),a=$("#main"),l=$("#topbar-title"),r=$("#search-wrapper"),n=$("#search-result-wrapper"),d=$("#search-results"),i=$("#search-input"),c=$("#search-hints"),u=function(){let e=0;return{block(){e=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(e)},getOffset(){return e}}}(),f={on(){e.addClass("unloaded"),l.addClass("unloaded"),o.addClass("unloaded"),r.addClass("d-flex"),t.addClass("loaded")},off(){t.removeClass("loaded"),r.removeClass("d-flex"),e.removeClass("unloaded"),l.removeClass("unloaded"),o.removeClass("unloaded")}},p=function(){let e=!1;return{on(){e||(u.block(),n.removeClass("unloaded"),a.addClass("unloaded"),e=!0)},off(){e&&(d.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),n.addClass("unloaded"),s.removeClass("visible"),a.removeClass("unloaded"),u.release(),i.val(""),e=!1)},isVisible(){return e}}}();function h(){return t.hasClass("loaded")}o.click(function(){f.on(),p.on(),i.focus()}),t.click(function(){f.off(),p.off()}),i.focus(function(){r.addClass("input-focus")}),i.focusout(function(){r.removeClass("input-focus")}),i.on("keyup",function(e){8===e.keyCode&&""===i.val()?h()?c.removeClass("unloaded"):p.off():""!==i.val()&&(p.on(),s.hasClass("visible")||s.addClass("visible"),h()&&c.addClass("unloaded"))}),s.on("click",function(){i.val(""),h()?(c.removeClass("unloaded"),d.empty()):p.off(),i.focus(),s.removeClass("visible")})}),$(function(){var e=function(){const e="sidebar-display";let o=!1;const t=$("body");return{toggle(){!1===o?t.attr(e,""):t.removeAttr(e),o=!o}}}();$("#sidebar-trigger").click(e.toggle),$("#mask").click(e.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const t=$("#topbar-wrapper"),o=$("#topbar-title"),s=$("#panel-wrapper"),a=$("#search-input"),l="topbar-up",r="topbar-down",n="toc-scrolling-up";let d,i=0;const c=t.outerHeight(),u=t.outerHeight();$(window).scroll(function(e){o.is(":hidden")&&(d=!0)}),setInterval(function(){d&&(function(){var e,o=$(this).scrollTop();Math.abs(i-o)<=c||(o>i?o>u&&(t.removeClass(r).addClass(l),s.removeClass(r),a.is(":focus")&&a.blur()):o+$(window).height()<$(document).height()&&(void 0!==(e=t.attr(n))?"false"===e&&t.removeAttr(n):(t.removeClass(l).addClass(r),s.addClass(r))),i=o)}(),d=!1)},250)}),$(function(){var o="div.post>h1:first-of-type";const t=$(o),r=$("#topbar-title");if(0!==t.length&&!t.hasClass("dynamic-title")&&!r.is(":hidden")){const n=r.text().trim();let s=t.text().trim(),a=!1,l=0;($("#page-category").length||$("#page-tag").length)&&/\s/.test(s)&&(s=s.replace(/[0-9]/g,"").trim());let e=new IntersectionObserver(e=>{var o,t;a?(o=$(window).scrollTop(),t=l<o,l=o,e=e[0],t?0===e.intersectionRatio&&r.text(s):1===e.intersectionRatio&&r.text(n)):a=!0},{rootMargin:"-48px 0px 0px 0px",threshold:[0,1]});e.observe(document.querySelector(o)),r.click(function(){$("body,html").animate({scrollTop:0},800)})}}),$(function(){const e=$(".collapse");e.on("hide.bs.collapse",function(){var e="h_"+$(this).attr("id").substring("l_".length);e&&($(`#${e} .far.fa-folder-open`).attr("class","far fa-folder fa-fw"),$(`#${e} i.fas`).addClass("rotate"),$("#"+e).removeClass("hide-border-bottom"))}),e.on("show.bs.collapse",function(){var e="h_"+$(this).attr("id").substring("l_".length);e&&($(`#${e} .far.fa-folder`).attr("class","far fa-folder-open fa-fw"),$(`#${e} i.fas`).removeClass("rotate"),$("#"+e).addClass("hide-border-bottom"))})});

assets/js/dist/commons.min.js

@@ -1,6 +1,6 @@
 /*!
- * Chirpy v4.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v5.0.2 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */
-$(function(){$(window).scroll(()=>{$(this).scrollTop()>50&&"none"===$("#sidebar-trigger").css("display")?$("#back-to-top").fadeIn():$("#back-to-top").fadeOut()}),$("#back-to-top").click(()=>($("body,html").animate({scrollTop:0},800),!1))}),$(function(){const e=$("#sidebar-trigger"),o=$("#search-trigger"),s=$("#search-cancel"),t=$("#search-cleaner"),a=$("#main"),l=$("#topbar-title"),n=$("#search-wrapper"),d=$("#search-result-wrapper"),r=$("#search-results"),i=$("#search-input"),c=$("#search-hints"),u=function(){let e=0;return{block(){e=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(e)},getOffset:()=>e}}(),p={on(){e.addClass("unloaded"),l.addClass("unloaded"),o.addClass("unloaded"),n.addClass("d-flex"),s.addClass("loaded")},off(){s.removeClass("loaded"),n.removeClass("d-flex"),e.removeClass("unloaded"),l.removeClass("unloaded"),o.removeClass("unloaded")}},f=function(){let e=!1;return{on(){e||(u.block(),d.removeClass("unloaded"),a.addClass("unloaded"),e=!0)},off(){e&&(r.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),d.addClass("unloaded"),t.removeClass("visible"),a.removeClass("unloaded"),u.release(),i.val(""),e=!1)},isVisible:()=>e}}();function h(){return s.hasClass("loaded")}o.click(function(){p.on(),f.on(),i.focus()}),s.click(function(){p.off(),f.off()}),i.focus(function(){n.addClass("input-focus")}),i.focusout(function(){n.removeClass("input-focus")}),i.on("keyup",function(e){8===e.keyCode&&""===i.val()?h()?c.removeClass("unloaded"):f.off():""!==i.val()&&(f.on(),t.hasClass("visible")||t.addClass("visible"),h()&&c.addClass("unloaded"))}),t.on("click",function(){i.val(""),h()?(c.removeClass("unloaded"),r.empty()):f.off(),i.focus(),t.removeClass("visible")})}),$(function(){const e=function(){let e=!1;const o=$("body");return{toggle(){!1===e?o.attr("sidebar-display",""):o.removeAttr("sidebar-display"),e=!e}}}();$("#sidebar-trigger").click(e.toggle),$("#mask").click(e.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const e=$("#topbar-wrapper"),o=$("#toc-wrapper"),s=$(".access"),t=$("#search-input");let a,l=0;const n=5,d=e.outerHeight();$(window).scroll(function(e){$("#topbar-title").is(":hidden")&&(a=!0)}),setInterval(function(){a&&(!function(){var a=$(this).scrollTop();Math.abs(l-a)<=n||(a>l&&a>d?(e.removeClass("topbar-down").addClass("topbar-up"),o.length>0&&o.removeClass("topbar-down"),s.length>0&&s.removeClass("topbar-down"),t.is(":focus")&&t.blur()):a+$(window).height()<$(document).height()&&(e.removeClass("topbar-up").addClass("topbar-down"),o.length>0&&o.addClass("topbar-down"),s.length>0&&s.addClass("topbar-down")),l=a)}(),a=!1)},250)}),$(function(){const e=$("#topbar-title"),o=$("div.post>h1"),s=e.text().trim();let t=o.length>0?o.text().trim():$("h1").text().trim();($("#page-category").length||$("#page-tag").length)&&/\s/.test(t)&&(t=t.replace(/[0-9]/g,"").trim()),$(window).scroll(function(){if($("#post-list").length||o.is(":hidden")||e.is(":hidden")||$("#sidebar.sidebar-expand").length)return!1;$(this).scrollTop()>=95?e.text()!==t&&e.text(t):e.text()!==s&&e.text(s)}),e.click(function(){$("body,html").animate({scrollTop:0},800)})});
+$(function(){$(window).scroll(()=>{50<$(this).scrollTop()&&"none"===$("#sidebar-trigger").css("display")?$("#back-to-top").fadeIn():$("#back-to-top").fadeOut()}),$("#back-to-top").click(()=>($("body,html").animate({scrollTop:0},800),!1))}),$(function(){$(".mode-toggle").click(e=>{const o=$(e.target);let t=o.prop("tagName")==="button".toUpperCase()?o:o.parent();t.blur(),flipMode()})}),$(function(){const e=$("#sidebar-trigger"),o=$("#search-trigger"),t=$("#search-cancel"),s=$("#search-cleaner"),a=$("#main"),l=$("#topbar-title"),n=$("#search-wrapper"),r=$("#search-result-wrapper"),i=$("#search-results"),d=$("#search-input"),c=$("#search-hints"),u=function(){let e=0;return{block(){e=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(e)},getOffset(){return e}}}(),p={on(){e.addClass("unloaded"),l.addClass("unloaded"),o.addClass("unloaded"),n.addClass("d-flex"),t.addClass("loaded")},off(){t.removeClass("loaded"),n.removeClass("d-flex"),e.removeClass("unloaded"),l.removeClass("unloaded"),o.removeClass("unloaded")}},f=function(){let e=!1;return{on(){e||(u.block(),r.removeClass("unloaded"),a.addClass("unloaded"),e=!0)},off(){e&&(i.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),r.addClass("unloaded"),s.removeClass("visible"),a.removeClass("unloaded"),u.release(),d.val(""),e=!1)},isVisible(){return e}}}();function m(){return t.hasClass("loaded")}o.click(function(){p.on(),f.on(),d.focus()}),t.click(function(){p.off(),f.off()}),d.focus(function(){n.addClass("input-focus")}),d.focusout(function(){n.removeClass("input-focus")}),d.on("keyup",function(e){8===e.keyCode&&""===d.val()?m()?c.removeClass("unloaded"):f.off():""!==d.val()&&(f.on(),s.hasClass("visible")||s.addClass("visible"),m()&&c.addClass("unloaded"))}),s.on("click",function(){d.val(""),m()?(c.removeClass("unloaded"),i.empty()):f.off(),d.focus(),s.removeClass("visible")})}),$(function(){var e=function(){const e="sidebar-display";let o=!1;const t=$("body");return{toggle(){!1===o?t.attr(e,""):t.removeAttr(e),o=!o}}}();$("#sidebar-trigger").click(e.toggle),$("#mask").click(e.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const t=$("#topbar-wrapper"),o=$("#topbar-title"),s=$("#panel-wrapper"),a=$("#search-input"),l="topbar-up",n="topbar-down",r="toc-scrolling-up";let i,d=0;const c=t.outerHeight(),u=t.outerHeight();$(window).scroll(function(e){o.is(":hidden")&&(i=!0)}),setInterval(function(){i&&(function(){var e,o=$(this).scrollTop();Math.abs(d-o)<=c||(o>d?o>u&&(t.removeClass(n).addClass(l),s.removeClass(n),a.is(":focus")&&a.blur()):o+$(window).height()<$(document).height()&&(void 0!==(e=t.attr(r))?"false"===e&&t.removeAttr(r):(t.removeClass(l).addClass(n),s.addClass(n))),d=o)}(),i=!1)},250)}),$(function(){var o="div.post>h1:first-of-type";const t=$(o),n=$("#topbar-title");if(0!==t.length&&!t.hasClass("dynamic-title")&&!n.is(":hidden")){const r=n.text().trim();let s=t.text().trim(),a=!1,l=0;($("#page-category").length||$("#page-tag").length)&&/\s/.test(s)&&(s=s.replace(/[0-9]/g,"").trim());let e=new IntersectionObserver(e=>{var o,t;a?(o=$(window).scrollTop(),t=l<o,l=o,e=e[0],t?0===e.intersectionRatio&&n.text(s):1===e.intersectionRatio&&n.text(r)):a=!0},{rootMargin:"-48px 0px 0px 0px",threshold:[0,1]});e.observe(document.querySelector(o)),n.click(function(){$("body,html").animate({scrollTop:0},800)})}});

assets/js/dist/home.min.js

@@ -1,6 +1,6 @@
 /*!
- * Chirpy v4.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v5.0.2 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */
-$(function(){$(window).scroll(()=>{$(this).scrollTop()>50&&"none"===$("#sidebar-trigger").css("display")?$("#back-to-top").fadeIn():$("#back-to-top").fadeOut()}),$("#back-to-top").click(()=>($("body,html").animate({scrollTop:0},800),!1))}),$(function(){const t=$("#sidebar-trigger"),e=$("#search-trigger"),o=$("#search-cancel"),a=$("#search-cleaner"),n=$("#main"),l=$("#topbar-title"),s=$("#search-wrapper"),r=$("#search-result-wrapper"),i=$("#search-results"),d=$("#search-input"),c=$("#search-hints"),u=function(){let t=0;return{block(){t=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(t)},getOffset:()=>t}}(),p={on(){t.addClass("unloaded"),l.addClass("unloaded"),e.addClass("unloaded"),s.addClass("d-flex"),o.addClass("loaded")},off(){o.removeClass("loaded"),s.removeClass("d-flex"),t.removeClass("unloaded"),l.removeClass("unloaded"),e.removeClass("unloaded")}},f=function(){let t=!1;return{on(){t||(u.block(),r.removeClass("unloaded"),n.addClass("unloaded"),t=!0)},off(){t&&(i.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),r.addClass("unloaded"),a.removeClass("visible"),n.removeClass("unloaded"),u.release(),d.val(""),t=!1)},isVisible:()=>t}}();function h(){return o.hasClass("loaded")}e.click(function(){p.on(),f.on(),d.focus()}),o.click(function(){p.off(),f.off()}),d.focus(function(){s.addClass("input-focus")}),d.focusout(function(){s.removeClass("input-focus")}),d.on("keyup",function(t){8===t.keyCode&&""===d.val()?h()?c.removeClass("unloaded"):f.off():""!==d.val()&&(f.on(),a.hasClass("visible")||a.addClass("visible"),h()&&c.addClass("unloaded"))}),a.on("click",function(){d.val(""),h()?(c.removeClass("unloaded"),i.empty()):f.off(),d.focus(),a.removeClass("visible")})}),$(function(){const t=function(){let t=!1;const e=$("body");return{toggle(){!1===t?e.attr("sidebar-display",""):e.removeAttr("sidebar-display"),t=!t}}}();$("#sidebar-trigger").click(t.toggle),$("#mask").click(t.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const t=$("#topbar-wrapper"),e=$("#toc-wrapper"),o=$(".access"),a=$("#search-input");let n,l=0;const s=5,r=t.outerHeight();$(window).scroll(function(t){$("#topbar-title").is(":hidden")&&(n=!0)}),setInterval(function(){n&&(!function(){var n=$(this).scrollTop();Math.abs(l-n)<=s||(n>l&&n>r?(t.removeClass("topbar-down").addClass("topbar-up"),e.length>0&&e.removeClass("topbar-down"),o.length>0&&o.removeClass("topbar-down"),a.is(":focus")&&a.blur()):n+$(window).height()<$(document).height()&&(t.removeClass("topbar-up").addClass("topbar-down"),e.length>0&&e.addClass("topbar-down"),o.length>0&&o.addClass("topbar-down")),l=n)}(),n=!1)},250)}),$(function(){const t=$("#topbar-title"),e=$("div.post>h1"),o=t.text().trim();let a=e.length>0?e.text().trim():$("h1").text().trim();($("#page-category").length||$("#page-tag").length)&&/\s/.test(a)&&(a=a.replace(/[0-9]/g,"").trim()),$(window).scroll(function(){if($("#post-list").length||e.is(":hidden")||t.is(":hidden")||$("#sidebar.sidebar-expand").length)return!1;$(this).scrollTop()>=95?t.text()!==a&&t.text(a):t.text()!==o&&t.text(o)}),t.click(function(){$("body,html").animate({scrollTop:0},800)})}),$(function(){let t=$(".timeago").length,e=void 0;$("meta[name=layout-lang]").attr("content");const o=$("meta[name=day-prompt]").attr("content"),a=$("meta[name=hour-prompt]").attr("content"),n=$("meta[name=minute-prompt]").attr("content"),l=$("meta[name=justnow-prompt]").attr("content");function s(){return $(".timeago").each(function(){if($(this).children("i").length>0){let e=$(this).clone().children().remove().end().text(),s=$(this).children("i"),r=s.text();$(this).text(function(e,s){let r=new Date,i=new Date(e);if(i.getFullYear()!==r.getFullYear()||i.getMonth()!==r.getMonth())return s;let d=Math.floor((r-i)/1e3),c=Math.floor(d/86400);if(c>=1)return t-=1,` ${c} ${o}`;let u=Math.floor(d/3600);if(u>=1)return` ${u} ${a}`;let $=Math.floor(d/60);return $>=1?` ${$} ${n}`:l}(r,e)),$(this).append(s)}}),0===t&&void 0!==e&&clearInterval(e),t}0!==t&&s()>0&&(e=setInterval(s,6e4))});
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assets/js/dist/pvreport.min.js

@@ -1,6 +1,6 @@
 /*!
- * Chirpy v4.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v5.0.2 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */
-const getInitStatus=function(){let e=!1;return()=>{let t=e;return e||(e=!0),t}}(),PvOpts=function(){function e(e){return $(e).attr("content")}function t(t){let a=e(t);return void 0!==a&&!1!==a}return{getProxyMeta:()=>e("meta[name=pv-proxy-endpoint]"),getLocalMeta:()=>e("meta[name=pv-cache-path]"),hasProxyMeta:()=>t("meta[name=pv-proxy-endpoint]"),hasLocalMeta:()=>t("meta[name=pv-cache-path]")}}(),PvStorage=function(){const e={KEY_PV:"pv",KEY_PV_SRC:"pv_src",KEY_CREATION:"pv_created_date"},t="same-origin",a="cors";function o(e){return localStorage.getItem(e)}function r(e,t){localStorage.setItem(e,t)}function n(t,a){r(e.KEY_PV,t),r(e.KEY_PV_SRC,a),r(e.KEY_CREATION,(new Date).toJSON())}return{keysCount:()=>Object.keys(e).length,hasCache:()=>null!==localStorage.getItem(e.KEY_PV),getCache:()=>JSON.parse(localStorage.getItem(e.KEY_PV)),saveLocalCache(e){n(e,t)},saveProxyCache(e){n(e,a)},isExpired(){let t=new Date(o(e.KEY_CREATION));return t.setHours(t.getHours()+1),Date.now()>=t.getTime()},isFromLocal:()=>o(e.KEY_PV_SRC)===t,isFromProxy:()=>o(e.KEY_PV_SRC)===a,newerThan:e=>PvStorage.getCache().totalsForAllResults["ga:pageviews"]>e.totalsForAllResults["ga:pageviews"],inspectKeys(){if(localStorage.length===PvStorage.keysCount())for(let t=0;t<localStorage.length;t++){switch(localStorage.key(t)){case e.KEY_PV:case e.KEY_PV_SRC:case e.KEY_CREATION:break;default:return void localStorage.clear()}}else localStorage.clear()}}}();function countUp(e,t,a){if(e<t){let o=new CountUp(a,e,t);o.error?console.error(o.error):o.start()}}function countPV(e,t){let a=0;if(void 0!==t)for(let o=0;o<t.length;++o){if(t[parseInt(o,10)][0]===e){a+=parseInt(t[parseInt(o,10)][1],10);break}}return a}function tacklePV(e,t,a,o){let r=countPV(t,e);if(r=0===r?1:r,o){const e=parseInt(a.text().replace(/,/g,""),10);r>e&&countUp(e,r,a.attr("id"))}else a.text((new Intl.NumberFormat).format(r))}function displayPageviews(e){if(void 0===e)return;let t=getInitStatus();const a=e.rows;if($("#post-list").length>0)$(".post-preview").each(function(){const e=$(this).find("a").attr("href");tacklePV(a,e,$(this).find(".pageviews"),t)});else if($(".post").length>0){const e=window.location.pathname;tacklePV(a,e,$("#pv"),t)}}function fetchProxyPageviews(){PvOpts.hasProxyMeta()&&$.ajax({type:"GET",url:PvOpts.getProxyMeta(),dataType:"jsonp",jsonpCallback:"displayPageviews",success:e=>{PvStorage.saveProxyCache(JSON.stringify(e))},error:(e,t,a)=>{console.log("Failed to load pageviews from proxy server: "+a)}})}function fetchLocalPageviews(e=!1){return fetch(PvOpts.getLocalMeta()).then(e=>e.json()).then(t=>{e&&PvStorage.isFromProxy()&&PvStorage.newerThan(t)||(displayPageviews(t),PvStorage.saveLocalCache(JSON.stringify(t)))})}$(function(){$(".pageviews").length<=0||(PvStorage.inspectKeys(),PvStorage.hasCache()?(displayPageviews(PvStorage.getCache()),PvStorage.isExpired()?PvOpts.hasLocalMeta()?fetchLocalPageviews(!0).then(fetchProxyPageviews):fetchProxyPageviews():PvStorage.isFromLocal()&&fetchProxyPageviews()):PvOpts.hasLocalMeta()?fetchLocalPageviews().then(fetchProxyPageviews):fetchProxyPageviews())});
+const getInitStatus=function(){let t=!1;return()=>{var e=t;return t=t||!0,e}}(),PvOpts=function(){function t(e){return $(e).attr("content")}function e(e){e=t(e);return void 0!==e&&!1!==e}return{getProxyMeta(){return t("meta[name=pv-proxy-endpoint]")},getLocalMeta(){return t("meta[name=pv-cache-path]")},hasProxyMeta(){return e("meta[name=pv-proxy-endpoint]")},hasLocalMeta(){return e("meta[name=pv-cache-path]")}}}(),PvStorage=function(){const a={KEY_PV:"pv",KEY_PV_SRC:"pv_src",KEY_CREATION:"pv_created_date"},t={LOCAL:"same-origin",PROXY:"cors"};function r(e){return localStorage.getItem(e)}function o(e,t){localStorage.setItem(e,t)}function n(e,t){o(a.KEY_PV,e),o(a.KEY_PV_SRC,t),o(a.KEY_CREATION,(new Date).toJSON())}return{keysCount(){return Object.keys(a).length},hasCache(){return null!==localStorage.getItem(a.KEY_PV)},getCache(){return JSON.parse(localStorage.getItem(a.KEY_PV))},saveLocalCache(e){n(e,t.LOCAL)},saveProxyCache(e){n(e,t.PROXY)},isExpired(){let e=new Date(r(a.KEY_CREATION));return e.setHours(e.getHours()+1),Date.now()>=e.getTime()},isFromLocal(){return r(a.KEY_PV_SRC)===t.LOCAL},isFromProxy(){return r(a.KEY_PV_SRC)===t.PROXY},newerThan(e){return PvStorage.getCache().totalsForAllResults["ga:pageviews"]>e.totalsForAllResults["ga:pageviews"]},inspectKeys(){if(localStorage.length===PvStorage.keysCount())for(let e=0;e<localStorage.length;e++)switch(localStorage.key(e)){case a.KEY_PV:case a.KEY_PV_SRC:case a.KEY_CREATION:break;default:return void localStorage.clear()}else localStorage.clear()}}}();function countUp(t,a,r){if(t<a){let e=new CountUp(r,t,a);e.error?console.error(e.error):e.start()}}function countPV(t,a){let r=0;if(void 0!==a)for(let e=0;e<a.length;++e)if(a[parseInt(e,10)][0]===t){r+=parseInt(a[parseInt(e,10)][1],10);break}return r}function tacklePV(e,t,a,r){let o=countPV(t,e);o=0===o?1:o,r?(r=parseInt(a.text().replace(/,/g,""),10),o>r&&countUp(r,o,a.attr("id"))):a.text((new Intl.NumberFormat).format(o))}function displayPageviews(e){if(void 0!==e){let t=getInitStatus();const a=e.rows;0<$("#post-list").length?$(".post-preview").each(function(){var e=$(this).find("a").attr("href");tacklePV(a,e,$(this).find(".pageviews"),t)}):0<$(".post").length&&(e=window.location.pathname,tacklePV(a,e,$("#pv"),t))}}function fetchProxyPageviews(){PvOpts.hasProxyMeta()&&$.ajax({type:"GET",url:PvOpts.getProxyMeta(),dataType:"jsonp",jsonpCallback:"displayPageviews",success:e=>{PvStorage.saveProxyCache(JSON.stringify(e))},error:(e,t,a)=>{console.log("Failed to load pageviews from proxy server: "+a)}})}function fetchLocalPageviews(t=!1){return fetch(PvOpts.getLocalMeta()).then(e=>e.json()).then(e=>{t&&PvStorage.isFromProxy()&&PvStorage.newerThan(e)||(displayPageviews(e),PvStorage.saveLocalCache(JSON.stringify(e)))})}$(function(){$(".pageviews").length<=0||(PvStorage.inspectKeys(),PvStorage.hasCache()?(displayPageviews(PvStorage.getCache()),PvStorage.isExpired()?PvOpts.hasLocalMeta()?fetchLocalPageviews(!0).then(fetchProxyPageviews):fetchProxyPageviews():PvStorage.isFromLocal()&&fetchProxyPageviews()):PvOpts.hasLocalMeta()?fetchLocalPageviews().then(fetchProxyPageviews):fetchProxyPageviews())});

assets/js/lib/jquery.disqusloader.min.js

@@ -1,8 +0,0 @@
-/*!
-  disqusLoader.js v1.0
-  A JavaScript plugin for lazy-loading Disqus comments widget.
-  -
-  By Osvaldas Valutis, www.osvaldas.info
-  Available for use under the MIT License
-*/
-(function(e,g,h,d){var a=e(g),k=function(o,n){var q,p;return function(){var t=this,s=arguments,r=+new Date;q&&r<q+o?(clearTimeout(p),p=setTimeout(function(){q=r,n.apply(t,s)},o)):(q=r,n.apply(t,s))}},m=false,j=false,i=false,c=false,f="unloaded",b=e(),l=function(){if(!b.length||b.data("disqusLoaderStatus")=="loaded"){return true}var n=a.scrollTop();if(b.offset().top-n>a.height()*j||n-b.offset().top-b.outerHeight()-(a.height()*j)>0){return true}e("#disqus_thread").removeAttr("id");b.attr("id","disqus_thread").data("disqusLoaderStatus","loaded");if(f=="loaded"){DISQUS.reset({reload:true,config:i})}else{g.disqus_config=i;if(f=="unloaded"){f="loading";e.ajax({url:c,async:true,cache:true,dataType:"script",success:function(){f="loaded"}})}}};a.on("scroll resize",k(m,l));e.disqusLoader=function(o,n){n=e.extend({},{laziness:1,throttle:250,scriptUrl:false,disqusConfig:false},n);j=n.laziness+1;m=n.throttle;i=n.disqusConfig;c=c===false?n.scriptUrl:c;b=(typeof o=="string"?e(o):o).eq(0);b.data("disqusLoaderStatus","unloaded");l()}})(jQuery,window,document);

docs/README.zh-CN.md

@@ -1,251 +0,0 @@
-<div align="right">
-  <a href="https://github.com/cotes2020/jekyll-theme-chirpy#readme">EN</a> |
-  <a href="https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/docs/README.zh-CN.md">中文 (简体)</a>
-</div>
-
-<div align="center">
-  <h1>Chirpy Jekyll Theme</h1>
-  <p>
-    <a href="https://rubygems.org/gems/jekyll-theme-chirpy">
-    <img alt="Gem Version" src="https://img.shields.io/gem/v/jekyll-theme-chirpy?color=brightgreen"></img>
-  </a>
-    <a href="https://github.com/cotes2020/jekyll-theme-chirpy/actions?query=branch%3Amaster+event%3Apush">
-    <img alt="Build Status" src="https://github.com/cotes2020/jekyll-theme-chirpy/workflows/build/badge.svg?branch=master&event=push"></img>
-  </a>
-    <a href="https://app.codacy.com/manual/cotes2020/jekyll-theme-chirpy?utm_source=github.com&utm_medium=referral&utm_content=cotes2020/jekyll-theme-chirpy&utm_campaign=Badge_Grade_Dashboard">
-    <img alt="Codacy Badge" src="https://api.codacy.com/project/badge/Grade/8220b926db514f13afc3f02b7f884f4b"></img>
-  </a>
-    <a href="https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/LICENSE">
-    <img alt="GitHub license" src="https://img.shields.io/github/license/cotes2020/jekyll-theme-chirpy.svg"></img>
-  </a>
-    <a href="https://996.icu">
-    <img alt="996.icu" src="https://img.shields.io/badge/link-996.icu-%23FF4D5B.svg"></img>
-  </a>
-  </p>
-</div>
-
-一个采用了最简化、侧边栏、响应式设计的 Jekyll 主题，专注于文本展示，旨在帮助您轻松地记录和分享知识。
-
-[在线体验 »](https://chirpy.cotes.info)
-
-<p align="center">
-  <a href="https://chirpy.cotes.info">
-    <img alt="Devices Mockup" src="https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/commons/devices-mockup.png"></img>
-  </a>
-</p>
-
-## 功能一览
-
-- 本地化外观语言
-- 可配置的主题颜色
-- 文章置顶
-- 文章最后修改日期
-- 文章目录
-- 自动推荐相关文章
-- 语法高亮
-- 二级目录
-- 数学表达式
-- Mermaid 图表
-- 搜索
-- Atom 订阅
-- Disqus 评论
-- Google 分析
-- GA 浏览报告（高级功能）
-- SEO 优化
-- 网站性能优化
-
-
-## 前提要求
-
-参考 [Jekyll Docs](https://jekyllrb.com/docs/installation/) 安装 `Ruby`，`RubyGems`，`Jekyll` 和 `Bundler`。需要注意的是，`Ruby` 的版本必须与主题在 [RubyGems.org](https://rubygems.org/gems/jekyll-theme-chirpy) 上的要求一致.
-
-## 安装
-
-有二法可得此主题:
-
-- **[从 RubyGems 安装](#从-rubygems-安装)** - 易于版本升级，隔离无关的主题项目文件，让您的仓库舒适清爽。
-- **[从 GitHub 上 Fork](#从-github-上-fork)** - 对个性化二次开发友好，但是难于升级，只适合专业开发人员使用。
-
-### 从 RubyGems 安装
-
-在您的 Jekyll 站点的 `Gemfile` 添加:
-
-```ruby
-gem "jekyll-theme-chirpy"
-```
-
-然后，添加这行到您的 Jekyll 站点的 `_config.yml`:
-
-```yaml
-theme: jekyll-theme-chirpy
-```
-
-接着执行:
-
-```console
-$ bundle
-```
-
-然后，进入主题的 gem 目录:
-
-```console
-$ cd "$(bundle info --path jekyll-theme-chirpy)"
-```
-
-拷贝运行站点所需主题的 gem 文件（详见 [starter 仓库][starter] 的文件目录）至您的 Jekyll 站点, 然后把主题的 `_config.yml` 全部内容附加到您的 Jekyll 站点的同名文件。
-
-> ⚠️ **留意重叠的文件！**
->
-如果您的网站是通过命令 `jekyll new` 创建的，那么站点的根目录会存在文件 `index.markdown` 和 `about.markdown`。 请务必删除它们, 否则在网站构建后将覆盖主题的 `index.html` 和 `_tabs/about.html`，引起空白或错乱的页面出现。
-
-作为替代方案，同时也被我们力荐，您可以 [使用 starter template][use-starter] 来快速创建 Jekyll 站点，以省去复制主题 gem 文件的时间。那里早已为您准备好建站需要的一切！
-
-
-### 从 GitHub 上 Fork
-
-[Fork **Chirpy**](https://github.com/cotes2020/jekyll-theme-chirpy/fork) 然后克隆到本地。(友情提示：默认分支的代码处于开发状态，如果您想博客更加稳定，请切换到最新的 [Tag](https://github.com/cotes2020/jekyll-theme-chirpy/tags) 开始写作。)
-
-安装依赖：
-
-```console
-$ bundle
-```
-
-接着执行文件初始化:
-
-```console
-$ bash tools/init.sh
-```
-
-> 如果您不打算部署到 GitHub Pages, 在上述命令后附加参数选项 `--no-gh`。
-
-上述脚本完成了以下工作:
-
-1. 从您的仓库中删除了:
-    - `.travis.yml`
-    - `_posts` 下的文件
-    - `docs` 目录
-
-2. 如果使用了参数 `--no-gh`，则会怒删 `.github`。否则，将会配置 GitHub Actions：把 `.github/workflows/pages-deploy.yml.hook` 的后缀 `.hook` 去除，然后删除 `.github` 里的其他目录和文件。
-
-3. 自动提交一个 Commit 以保存上述文件的更改。
-
-## 使用
-
-### 配置文件
-
-根据个人需要去修改 `_config.yml` 的变量，大部分都有注释介绍用法。典型的几个选项是：
-
-- `url`
-- `avatar`
-- `timezone`
-- `lang`
-
-### 自定义样式
-
-如果您需要自定义样式, 拷贝主题的文件 `assets/css/style.scss` 到您站点的相同路径上，然后在该文件末尾添加样式。
-
-自 `v4.1.0` 起，如果您想覆盖文件 `_sass/addon/variables.scss` 里定义的 SASS 变量的默认值，新建文件 `_sass/variables-hook.scss`，然后重写您需要的变量即可。
-
-### 本地运行
-
-发布之前，在本地预览:
-
-```terminal
-$ bundle exec jekyll s
-```
-
-或者用 Docker 运行:
-
-```terminal
-$ docker run -it --rm \
-    --volume="$PWD:/srv/jekyll" \
-    -p 4000:4000 jekyll/jekyll \
-    jekyll serve
-```
-
-访问本地服务：<http://localhost:4000>
-
-### 部署
-
-部署开始前，把  `_config.yml` 的 `url` 改为 `https://<username>.github.io`(或者您的私有域名，如：`https://yourdomain.com`)。另外，如果您想使用 [Project 类型网站](https://help.github.com/en/github/working-with-github-pages/about-github-pages#types-of-github-pages-sites)，修改配置文件的 `baseurl` 为项目名称，以斜杠开头，如：`/project`。
-
-现在您可以选择下列其中一个方式去站点部署。
-
-#### 部署到 GitHub Pages
-
-由于安全原因，GitHub Pages 的构建强制加了 `safe`参数，这导致了我们不能使用插件去创建所需的附加页面。因此，我们可以使用 GitHub Actions 去构建站点，把站点文件存储在一个新分支上，再指定该分支作为 Pages 服务的源。
-
-快速检查 GitHub Actions 构建需要的文件:
-
-- 确保您的 Jekyll 站点存在文件 `.github/workflows/pages-deploy.yml`。没有的话，新建并填入[示例工作流][workflow]的内容, 注意参数 `on.push.branches` 的值必须和您的仓库默认分支名相同。
-- 检查您的 Jekyll 站点是否有文件 `tools/test.sh` 和 `tools/deploy.sh`. 没有的话, 从本仓库拷贝到您的 Jekyll 项目.
-
-在 GitHub 把您的仓库命名为 `<GH-USERNAME>.github.io`，然后开始发布：
-
-1. 推送任意一个 commit 到 `origin/master` 以触发 GitHub Actions workflow。一旦 build 完毕并且成功，远端将会自动出现一个新分支 `gh-pages` 用来存储构建的站点文件。
-
-2. 回到 GitHub 上的仓库， 通过 _Settings_ → _Options_ → _GitHub Pages_ 选择分支 `gh-pages` 作为[_发布源_](https://docs.github.com/en/github/working-with-github-pages/configuring-a-publishing-source-for-your-github-pages-site):
-
-    ![gh-pages-sources](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190809/gh-pages-sources.png)
-
-3. 按照 GitHub 指示的地址去访问您的网站。
-
-#### 部署到其他 Pages 平台
-
-在 GitHub 之外的平台，例如 GitLab，就没法享受 **GitHub Actions** 的便利了。因此我们需要在本地构建站点（或者在其他第三方 CI 平台），然后推送站点文件到服务器上。
-
-在项目根目录，运行:
-
-```console
-$ JEKYLL_ENV=production bundle exec jekyll b
-```
-
-或者通过 Docker 构建:
-
-```terminal
-$ docker run -it --rm \
-    --env JEKYLL_ENV=production \
-    --volume="$PWD:/srv/jekyll" \
-    jekyll/jekyll \
-    jekyll build
-```
-
-生成的静态文件将会在 `_site`， 把内部的文件上传到服务器即可。
-
-## 文档
-
-若想要更多细节以及更佳的阅读体验，请参阅 [线上教程](https://chirpy.cotes.info/categories/tutorial/)。 与此同时，[Wiki](https://github.com/cotes2020/jekyll-theme-chirpy/wiki) 也有一份教程的拷贝。请注意，Demo 网站和 Wiki 上的文档都是基于最新的发行版本，而 `master` 分支的功能往往领先于现有文档。
-
-## 参与贡献
-
-三人行必有我师，欢迎提报告 bug, 帮助改进代码质量，或者提交新功能。具体操作规则请参考 [贡献指南](../.github/CONTRIBUTING.md)，谢谢 🙏。
-
-## 鸣谢
-
-这个主题的开发主要基于 [Jekyll](https://jekyllrb.com/) 生态、[Bootstrap](https://getbootstrap.com/)、[Font Awesome](https://fontawesome.com/) 和其他一些出色的工具 (相关文件中可以找到这些工具的版权信息)。头像和图标的设计来自于 [Clipart Max](https://www.clipartmax.com/middle/m2i8b1m2K9Z5m2K9_ant-clipart-childrens-ant-cute/)。
-
-:tada: 感谢所有参与代码贡献的小伙伴, 他们的 GayHub ID 在这个[列表](https://github.com/cotes2020/jekyll-theme-chirpy/graphs/contributors)。 另外, 提交过 issues(或者未被合并 PR) 的高富帅和白富美也不会被遗忘,他/她们帮助报告 bug、分享新点子或者启发了我写出更通俗易懂的文档。
-
-还有，感谢 [JetBrains][jb] 提供开源 License！
-
-## 赞助
-
-如果您喜欢这个主题或者它对您有帮助，请考虑打赏作者，您的支持将会极大地鼓励作者，并帮助作者更好地维护项目！
-
-[![Buy Me a Coffee](https://img.shields.io/badge/-请作者喝杯咖啡-ff813f?logo=buy-me-a-coffee&logoColor=white)](https://www.buymeacoffee.com/coteschung)
-[![Wechat Pay](https://img.shields.io/badge/-微信打赏作者-brightgreen?logo=wechat&logoColor=white)][cn-donation]
-[![Alipay](https://img.shields.io/badge/-支付宝打赏作者-blue?logo=alipay&logoColor=white)][cn-donation]
-
-## 许可证书
-
-本项目开源，基于 [MIT](https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/LICENSE) 许可。
-
-[starter]: https://github.com/cotes2020/chirpy-starter
-[use-starter]: https://github.com/cotes2020/chirpy-starter/generate
-[workflow]: https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/.github/workflows/pages-deploy.yml.hook
-
-<!-- ReadMe links -->
-
-[jb]: https://www.jetbrains.com/?from=jekyll-theme-chirpy
-[cn-donation]: https://cotes.gitee.io/alipay-wechat-donation/

gulpfile.js/tasks/js.js

@@ -46,7 +46,7 @@ const postJs = () => {
       `${JS_SRC}/utils/img-extra.js`,
       `${JS_SRC}/utils/timeago.js`,
       `${JS_SRC}/utils/checkbox.js`,
-      `${JS_SRC}/utils/copy-link.js`,
+      `${JS_SRC}/utils/clipboard.js`,
       // 'smooth-scroll.js' must be called after ToC is ready
       `${JS_SRC}/utils/smooth-scroll.js`
     ], 'post'
@@ -66,7 +66,8 @@ const pageJs = () => {
       `${JS_SRC}/commons/*.js`,
       `${JS_SRC}/utils/checkbox.js`,
       `${JS_SRC}/utils/img-extra.js`,
-      `${JS_SRC}/utils/copy-link.js`,
+      `${JS_SRC}/utils/clipboard.js`,
+      `${JS_SRC}/utils/smooth-scroll.js`
     ], 'page'
   );
 };
@@ -89,6 +90,5 @@ exports.liveRebuild = () => {
       `${ JS_SRC }/lib/*.js`
     ],
     buildJs
-  )
-}
-
+  );
+};

jekyll-theme-chirpy.gemspec

@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |spec|
   spec.name          = "jekyll-theme-chirpy"
-  spec.version       = "4.1.0"
+  spec.version       = "5.0.2"
   spec.authors       = ["Cotes Chung"]
   spec.email         = ["cotes.chung@gmail.com"]
 
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
     "plugin_type"       => "theme"
   }
 
-  spec.required_ruby_version = [">= 2.4", "< 3.0"]
+  spec.required_ruby_version = ">= 2.4"
 
   spec.add_runtime_dependency "jekyll", "~> 4.1"
   spec.add_runtime_dependency "jekyll-paginate", "~> 1.1"

package.json

@@ -1,6 +1,6 @@
 {
   "name": "jekyll-theme-chirpy",
-  "version": "4.1.0",
+  "version": "5.0.2",
   "description": "A minimal, sidebar, responsive web design Jekyll theme that focuses on text presentation.",
   "main": "index.js",
   "directories": {
@@ -25,6 +25,6 @@
     "gulp-insert": "^0.5.0",
     "gulp-rename": "^2.0.0",
     "gulp-uglify": "^3.0.2",
-    "uglify-js": "git+https://github.com/mishoo/UglifyJS2.git#harmony"
+    "uglify-js": "^3.14.3"
   }
 }

tools/bump.sh

@@ -1,34 +1,24 @@
 #!/usr/bin/env bash
 #
-# How does it work:
 #
-#   1. Cherry pick the latest commit from default branch
-#      to the target release branch if the target release branch already existed.
+# 1. Bump latest version number to the following files:
 #
-#   2. Bump latest version number to the following files:
-#
-#     - _sass/jekyll-theme-chirpy.scss
-#     - _javascript/copyright
-#     - assets/js/dist/*.js (will be built by gulp later)
-#     - jekyll-theme-chirpy.gemspec
-#     - package.json
-#
-#   3. Create a git-tag on release branch
-#
-#   4. Build a RubyGems package base on the latest git-tag
+#   - _sass/jekyll-theme-chirpy.scss
+#   - _javascript/copyright
+#   - assets/js/dist/*.js (will be built by gulp later)
+#   - jekyll-theme-chirpy.gemspec
+#   - package.json
 #
+# 2. Then create a commit to automatically save the changes.
 #
 # Usage:
 #
-#   Run on default branch, if run on other branch requires parameter '-m' (manual mode).
+#   Run on the default branch or hotfix branch
 #
-#
-# Requires: Git, Gulp, RubyGems
+# Requires: Git, Gulp
 
 set -eu
 
-opt_manual=false
-
 ASSETS=(
   "_sass/jekyll-theme-chirpy.scss"
   "_javascript/copyright"
@@ -38,10 +28,6 @@ GEM_SPEC="jekyll-theme-chirpy.gemspec"
 
 NODE_META="package.json"
 
-DEFAULT_BRANCH="master"
-
-_working_branch="$(git branch --show-current)"
-
 _check_src() {
   if [[ ! -f $1 && ! -d $1 ]]; then
     echo -e "Error: Missing file \"$1\"!\n"
@@ -55,12 +41,6 @@ check() {
     exit -1
   fi
 
-  # ensure working on default branch or running in 'manual' mode
-  if [[ $_working_branch != $DEFAULT_BRANCH && $opt_manual == "false" ]]; then
-    echo "Error: This operation must be performed on the 'master' branch or '--manual' mode!"
-    exit -1
-  fi
-
   for i in "${!ASSETS[@]}"; do
     _check_src "${ASSETS[$i]}"
   done
@@ -98,77 +78,6 @@ bump() {
   fi
 }
 
-build_gem() {
-  rm -f ./*.gem
-  gem build "$GEM_SPEC"
-}
-
-release() {
-  _version="$1"
-  _major=""
-  _minor=""
-  _new_release_branch=false
-
-  IFS='.' read -r -a array <<< "$_version"
-
-  for elem in "${array[@]}"; do
-    if [[ -z $_major ]]; then
-      _major="$elem"
-    elif [[ -z $_minor ]]; then
-      _minor="$elem"
-    else
-      break
-    fi
-  done
-
-  _release_branch="$_major-$_minor-stable"
-
-  if $opt_manual; then
-    echo -e "Bump version to $_version (manual release)\n"
-    bump "$_version"
-    exit 0
-  fi
-
-  if [[ -z $(git branch -v | grep "$_release_branch") ]]; then
-    git checkout -b "$_release_branch"
-    _new_release_branch=true
-  else
-    git checkout "$_release_branch"
-    # cherry-pick the latest commit from master branch to release branch
-    git cherry-pick "$(git rev-parse $DEFAULT_BRANCH)"
-  fi
-
-  echo -e "Bump version to $_version\n"
-  bump "$_version"
-
-  echo -e "Create tag v$_version\n"
-  git tag "v$_version"
-
-  echo -e "Build the gem pakcage for v$_version\n"
-  build_gem
-
-  # head back to working branch
-  git checkout "$_working_branch"
-
-  if [[ $_working_branch == $DEFAULT_BRANCH ]]; then
-    if $_new_release_branch; then
-      git merge "$_release_branch"
-    fi
-  fi
-
-}
-
-help() {
-  echo "Bump new version to Chirpy project"
-  echo "Usage:"
-  echo
-  echo "   bash /path/to/bump.sh [options]"
-  echo
-  echo "Options:"
-  echo "     -m, --manual         Manual relase, bump version only."
-  echo "     -h, --help           Print this help information."
-}
-
 main() {
   check
 
@@ -185,7 +94,8 @@ main() {
       exit -1
     fi
 
-    release "$_version"
+    echo -e "Bump version to $_version\n"
+    bump "$_version"
 
   else
 
@@ -194,22 +104,4 @@ main() {
 
 }
 
-while (($#)); do
-  opt="$1"
-  case $opt in
-    -m | --manual)
-      opt_manual=true
-      shift
-      ;;
-    -h | --help)
-      help
-      exit 0
-      ;;
-    *)
-      echo "unknown option '$opt'!"
-      exit 1
-      ;;
-  esac
-done
-
 main

tools/deploy.sh

@@ -1,22 +1,80 @@
 #!/usr/bin/env bash
 #
-# Deploy the content of _site to 'origin/<pages_branch>'
+# Build, test and then deploy the site content to 'origin/<pages_branch>'
+#
+# Requirement: html-proofer, jekyll
+#
+# Usage: See help information
 
 set -eu
 
 PAGES_BRANCH="gh-pages"
 
-_no_branch=false
+SITE_DIR="_site"
+
+_opt_dry_run=false
+
+_config="_config.yml"
+
+_no_pages_branch=false
+
 _backup_dir="$(mktemp -d)"
 
+_baseurl=""
+
+help() {
+  echo "Build, test and then deploy the site content to 'origin/<pages_branch>'"
+  echo
+  echo "Usage:"
+  echo
+  echo "   bash ./tools/deploy.sh [options]"
+  echo
+  echo "Options:"
+  echo '     -c, --config   "<config_a[,config_b[...]]>"    Specify config file(s)'
+  echo "     --dry-run                Build site and test, but not deploy"
+  echo "     -h, --help               Print this information."
+}
+
 init() {
-  if [[ -z ${GITHUB_ACTION+x} ]]; then
-    echo "ERROR: This script is not allowed to run outside of GitHub Action."
+  if [[ -z ${GITHUB_ACTION+x} && $_opt_dry_run == 'false' ]]; then
+    echo "ERROR: It is not allowed to deploy outside of the GitHub Action envrionment."
+    echo "Type option '-h' to see the help information."
     exit -1
   fi
 
+  _baseurl="$(grep '^baseurl:' _config.yml | sed "s/.*: *//;s/['\"]//g;s/#.*//")"
+}
+
+build() {
+  # clean up
+  if [[ -d $SITE_DIR ]]; then
+    rm -rf "$SITE_DIR"
+  fi
+
+  # build
+  JEKYLL_ENV=production bundle exec jekyll b -d "$SITE_DIR$_baseurl" --config "$_config"
+}
+
+test() {
+  bundle exec htmlproofer \
+    --disable-external \
+    --check-html \
+    --allow_hash_href \
+    "$SITE_DIR"
+}
+
+resume_site_dir() {
+  if [[ -n $_baseurl ]]; then
+    # Move the site file to the regular directory '_site'
+    mv "$SITE_DIR$_baseurl" "${SITE_DIR}-rename"
+    rm -rf "$SITE_DIR"
+    mv "${SITE_DIR}-rename" "$SITE_DIR"
+  fi
+}
+
+setup_gh() {
   if [[ -z $(git branch -av | grep "$PAGES_BRANCH") ]]; then
-    _no_branch=true
+    _no_pages_branch=true
     git checkout -b "$PAGES_BRANCH"
   else
     git checkout "$PAGES_BRANCH"
@@ -24,7 +82,7 @@ init() {
 }
 
 backup() {
-  mv _site/* "$_backup_dir"
+  mv "$SITE_DIR"/* "$_backup_dir"
   mv .git "$_backup_dir"
 
   # When adding custom domain from Github website,
@@ -40,6 +98,7 @@ flush() {
 
   shopt -s dotglob nullglob
   mv "$_backup_dir"/* .
+  [[ -f ".nojekyll" ]] || echo "" >".nojekyll"
 }
 
 deploy() {
@@ -50,7 +109,7 @@ deploy() {
   git add -A
   git commit -m "[Automation] Site update No.${GITHUB_RUN_NUMBER}"
 
-  if $_no_branch; then
+  if $_no_pages_branch; then
     git push -u origin "$PAGES_BRANCH"
   else
     git push -f
@@ -59,9 +118,43 @@ deploy() {
 
 main() {
   init
+  build
+  test
+  resume_site_dir
+
+  if $_opt_dry_run; then
+    exit 0
+  fi
+
+  setup_gh
   backup
   flush
   deploy
 }
 
+while (($#)); do
+  opt="$1"
+  case $opt in
+  -c | --config)
+    _config="$2"
+    shift
+    shift
+    ;;
+  --dry-run)
+    # build & test, but not deploy
+    _opt_dry_run=true
+    shift
+    ;;
+  -h | --help)
+    help
+    exit 0
+    ;;
+  *)
+    # unknown option
+    help
+    exit 1
+    ;;
+  esac
+done
+
 main

tools/init.sh

@@ -6,6 +6,8 @@ set -eu
 
 ACTIONS_WORKFLOW=pages-deploy.yml
 
+TEMP_SUFFIX="to-delete" #  temporary file suffixes that make `sed -i` compatible with BSD and Linux
+
 help() {
   echo "Usage:"
   echo
@@ -16,6 +18,13 @@ help() {
   echo "     -h, --help           Print this help information."
 }
 
+check_status() {
+  if [[ -n $(git status . -s) ]]; then
+    echo "Error: Commit unstaged files first, and then run this tool againt."
+    exit -1
+  fi
+}
+
 check_init() {
   local _has_inited=false
 
@@ -40,25 +49,48 @@ check_init() {
 }
 
 init_files() {
-
   if $_no_gh; then
     rm -rf .github
   else
+    ## Change the files of `.github`
+
     mv .github/workflows/$ACTIONS_WORKFLOW.hook .
     rm -rf .github
     mkdir -p .github/workflows
     mv ./${ACTIONS_WORKFLOW}.hook .github/workflows/${ACTIONS_WORKFLOW}
+
+    ## Ensure the gh-actions trigger branch
+
+    _workflow=".github/workflows/${ACTIONS_WORKFLOW}"
+    _default_branch="$(git symbolic-ref refs/remotes/origin/HEAD | sed 's@^refs/remotes/origin/@@')"
+    _lineno="$(sed -n "/branches:/=" "$_workflow")"
+
+    sed -i.$TEMP_SUFFIX "$((_lineno + 1))s/- .*/- ${_default_branch}/" "$_workflow"
+    rm -f "$_workflow.$TEMP_SUFFIX"
+
+    ## Cleanup image settings in site config
+    sed -i.$TEMP_SUFFIX "s/^img_cdn:.*/img_cdn:/;s/^avatar:.*/avatar:/" _config.yml
+    rm -f _config.yml.$TEMP_SUFFIX
+
   fi
 
+  # trace the gem lockfile on user-end
+  sed -i.$TEMP_SUFFIX "/Gemfile.lock/d" .gitignore
+  rm -f ".gitignore.$TEMP_SUFFIX"
+
+  # remove the other fies
   rm -f .travis.yml
   rm -rf _posts/* docs
 
-  git add -A && git add .github -f
+  # save changes
+  git add -A
   git commit -m "[Automation] Initialize the environment." -q
 
   echo "[INFO] Initialization successful!"
 }
 
+check_status
+
 check_init
 
 _no_gh=false

tools/release.sh

@@ -0,0 +1,73 @@
+#!/usr/bin/env bash
+#
+# According to the GitLab flow release branching model,
+# cherry-pick the last commit on the main branch to the release branch,
+# and then create a tag and gem package on the release branch (naming format: 'release/<X.Y>').
+#
+#
+# Usage:
+#
+#   It can be run on main branch, and it should be used after just finishing the last feature in the version plan,
+#   or just after merging the hotfix to the main branch.
+#
+# Requires: Git, Gulp
+
+set -eu
+
+GEM_SPEC="jekyll-theme-chirpy.gemspec"
+
+check() {
+  if [[ -n $(git status . -s) ]]; then
+    echo "Error: Commit unstaged files first, and then run this tool againt."
+    exit -1
+  fi
+
+  if [[ ! -f $GEM_SPEC ]]; then
+    echo -e "Error: Missing file \"$GEM_SPEC\"!\n"
+    exit -1
+  fi
+}
+
+## Remove unnecessary theme settings
+cleanup_config() {
+  cp _config.yml _config.yml.bak
+  sed -i "s/^img_cdn:.*/img_cdn:/;s/^avatar:.*/avatar:/" _config.yml
+}
+
+resume_config() {
+  mv _config.yml.bak _config.yml
+}
+
+release() {
+  _default_branch="$(git symbolic-ref refs/remotes/origin/HEAD | sed 's@^refs/remotes/origin/@@')"
+  _version="$(grep "spec.version" jekyll-theme-chirpy.gemspec | sed 's/.*= "//;s/".*//')" # X.Y.Z
+  _release_branch="release/${_version%.*}"
+
+  if [[ -z $(git branch -v | grep "$_release_branch") ]]; then
+    # create a new release branch
+    git checkout -b "$_release_branch"
+  else
+    # cherry-pick the latest commit from default branch to release branch
+    _last_commit="$(git rev-parse "$_default_branch")"
+    git checkout "$_release_branch"
+    git cherry-pick "$_last_commit" -m 1
+  fi
+
+  # create new tag
+  echo -e "Create tag v$_version\n"
+  git tag "v$_version"
+
+  # build a gem package
+  echo -e "Build the gem pakcage for v$_version\n"
+  cleanup_config
+  rm -f ./*.gem
+  gem build "$GEM_SPEC"
+  resume_config
+}
+
+main() {
+  check
+  release
+}
+
+main

tools/test.sh

@@ -1,64 +0,0 @@
-#!/usr/bin/env bash
-#
-# Using HTML-proofer to test site.
-#
-# Requirement: https://github.com/gjtorikian/html-proofer
-#
-# Usage: bash /path/to/test.sh [indicated path]
-
-DEST=_site
-
-_build=false
-
-help() {
-  echo "Usage:"
-  echo
-  echo "   bash ./tools/test.sh [options]"
-  echo
-  echo "Options:"
-  echo "     --build                  Run Jekyll build before test."
-  echo "     -d, --dir   <path>       Specify the test path."
-  echo "     -h, --help               Print this information."
-}
-
-if [[ -n $1 && -d $1 ]]; then
-  DEST=$1
-fi
-
-while (($#)); do
-  opt="$1"
-  case $opt in
-    --build)
-      _build=true
-      shift
-      ;;
-    -d | --dir)
-      if [[ ! -d $2 ]]; then
-        echo -e "Error: path '$2' doesn't exist\n"
-        help
-        exit 1
-      fi
-      DEST=$2
-      shift
-      shift
-      ;;
-    -h | --help)
-      help
-      exit 0
-      ;;
-    *)
-      # unknown option
-      help
-      exit 1
-      ;;
-  esac
-done
-
-if $_build; then
-  JEKYLL_ENV=production bundle exec jekyll b
-fi
-
-bundle exec htmlproofer "$DEST" \
-  --disable-external \
-  --check-html \
-  --allow_hash_href