restore .github directory

Author: aogata-inst

.github/workflows/publish.yml

@@ -0,0 +1,27 @@
+name: publish
+on:
+  push:
+    paths:
+      - 'debian/changelog'
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          path: "ruby"
+      - run: |
+          major_version=$(head -n1 ruby/debian/changelog | egrep -o "ruby[0-9.]+" | sed "s/ruby//")
+          minor_version=$(head -n1 ruby/debian/changelog | egrep -o "\([0-9.]+(~[a-z0-9]+)?" | sed "s/(//")
+          upstream_minor_version=$(echo $minor_version | sed "s/~/-/")
+          curl https://cache.ruby-lang.org/pub/ruby/${major_version}/ruby-${upstream_minor_version}.tar.gz > ruby${major_version}_${minor_version}.orig.tar.gz          # Remove this file itself to avoid generating a debian-changes file
+          rm -rf ruby/.github
+      - name: Publish PPA
+        uses: maths22/publish-ppa-package@main
+        with:
+          repository: 'ppa:instructure/ruby-testing'
+          gpg_private_key: ${{ secrets.PPA_GPG_PRIVATE_KEY }}
+          gpg_passphrase: ${{ secrets.PPA_GPG_PASSPHRASE }}
+          series: 'focal jammy'
+          pkgdir: '${{ github.workspace }}/ruby/'