Configure cask update

.github/workflows/create-release.yml

@@ -50,9 +50,53 @@ jobs:
       - name: "Notarize app"
         run: xcrun notarytool submit MiddleMe.zip --keychain-profile notarytool --wait
 
+      - name: "Create cask env"
+        run: |
+          SHA=$(shasum -a 256 -sha256 MiddleMe.zip | awk '{print $1}') && \
+          echo "ARTEFACT_SHA256=$(echo $SHA)" >> cask.env && \
+          VERSION=$(sed -n '/MARKETING_VERSION/{s/MARKETING_VERSION = //;s/;//;s/^[[:space:]]*//;p;q;}' ./MiddleMe.xcodeproj/project.pbxproj) && \
+          echo "ARTEFACT_VERSION=$(echo $VERSION)" >> cask.env
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: cask.env
+          path: cask.env
+
       - name: "Create Release"
         uses: softprops/action-gh-release@78c309ef59fdb9557cd6574f2e0be552936ed728
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           files: MiddleMe.zip
+  bump_homebrew:
+    name: Bump homebrew cask
+    runs-on: ubuntu-latest
+    needs: release
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/download-artifact@v3
+        with:
+          name: cask.env
+      - name: Set git identity
+        run: |
+          git config --global user.email "[email protected]"
+          git config --global user.name "runner"
+      - name: Load cask env
+        run: |
+          cat cask.env >> $GITHUB_ENV
+      - uses: actions/checkout@v2
+        with:
+          ref: main
+          path: tap
+          repository: "reeywhaar/homebrew-tap"
+          token: ${{ secrets.TAP_REPO_TOKEN }}
+      - name: Update formula
+        run: ruby update_cask.rb tap/Casks/middleme.rb $ARTEFACT_VERSION $ARTEFACT_SHA256
+      - name: Commit
+        run: git add . && git commit -m "MiddleMe $ARTEFACT_VERSION"
+        working-directory: tap
+      - name: Push
+        run: git push origin main
+        working-directory: tap
+        env:
+          HOMEBREW_GITHUB_API_TOKEN: ${{ secrets.TAP_REPO_TOKEN }}

update_cask.rb

@@ -0,0 +1,16 @@
+def main
+  file = ARGV[0]
+  version = ARGV[1]
+  sha = ARGV[2]
+
+  content = File.read(file)
+  content = content.gsub(/# version-placeholder\n.*$/, "# version-placeholder\n  version \"#{version}\"")
+  content = content.gsub(/# sha256-placeholder\n.*$/, "# sha256-placeholder\n  sha256 \"#{sha}\"")
+  content = content.gsub(/^\s+revision.*$/, "")
+
+  File.open(file, "w") do |f|
+    f.write(content)
+  end
+end
+
+main