Added new tools and workflow.

tools/deploy.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+#
+# Deploy the content of _site to 'origin/<pages_branch>'
+#
+# v2.5
+# https://github.com/cotes2020/jekyll-theme-chirpy
+# © 2020 Cotes Chung
+# Published under MIT License
+
+
+set -eu
+
+PAGES_BRANCH="gh-pages"
+
+_no_branch=false
+
+if [[ -z `git branch -av | grep $PAGES_BRANCH` ]]; then
+  _no_branch=true
+  git checkout -b $PAGES_BRANCH
+else
+  git checkout $PAGES_BRANCH
+fi
+
+mv _site ../
+mv .git ../
+
+rm -rf * && rm -rf .[^.] .??*
+
+mv ../_site/* .
+mv ../.git .
+
+git config --global user.name "GitHub Actions"
+git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
+
+git update-ref -d HEAD
+git add -A
+git commit -m "[Automation] Site update No.${GITHUB_RUN_NUMBER}"
+
+if [[ $_no_branch = true ]]; then
+  git push -u origin $PAGES_BRANCH
+else
+  git push -f
+fi