Monitor Homebrew Formula #341
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| name: Monitor Homebrew Formula | |
| on: | |
| workflow_dispatch: # Allows manual triggering of the workflow | |
| schedule: | |
| - cron: '0 */4 * * *' # Runs every 4 hours | |
| env: | |
| file_changed: ${{ false }} | |
| branch_exists: ${{ false }} | |
| jobs: | |
| check-and-update: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Checkout this repository | |
| uses: actions/checkout@v4 | |
| - name: Fetch released version of Chapel formula | |
| run: | | |
| curl -o hb_master_chapel.rb https://raw.githubusercontent.com/homebrew/homebrew-core/master/Formula/c/chapel.rb | |
| FILE_HASH=$(sha256sum hb_master_chapel.rb | awk '{ print $1 }') | |
| HASH_SUBSTRING=${FILE_HASH:0:7} | |
| echo "FILE_HASH=$FILE_HASH" >> $GITHUB_ENV | |
| echo "HASH_SUBSTRING=$HASH_SUBSTRING" >> $GITHUB_ENV | |
| - name: Compare the released version with the chapel-release.rb | |
| id: compare | |
| run: | | |
| if ! cmp -s hb_master_chapel.rb util/packaging/homebrew/chapel-release.rb; then | |
| echo "file_changed=true" >> $GITHUB_ENV | |
| else | |
| echo "file_changed=false" >> $GITHUB_ENV | |
| fi | |
| - name: Check if branch already exists | |
| id: check-branch | |
| if: ${{ env.file_changed == 'true' }} | |
| run: | | |
| BRANCH_NAME=update-chapel-homebrew-release-${{ env.HASH_SUBSTRING }} | |
| if git ls-remote --heads origin $BRANCH_NAME | grep -q $BRANCH_NAME; then | |
| echo "Branch $BRANCH_NAME already exists." | |
| echo "branch_exists=true" >> $GITHUB_ENV | |
| else | |
| echo "Branch $BRANCH_NAME does not exist." | |
| echo "branch_exists=false" >> $GITHUB_ENV | |
| fi | |
| - name: Exit if branch exists | |
| if: ${{ (env.file_changed == 'true') && (env.branch_exists == 'true') }} | |
| run: | | |
| echo "Branch already exists. Exiting." | |
| exit 0 | |
| - name: Create a new branch if file has changed | |
| if: ${{ (env.file_changed == 'true') && (env.branch_exists == 'false') }} | |
| run: | | |
| git config --global user.email "github-action-bot@email.com" | |
| git config --global user.name "github action" | |
| git checkout -b update-chapel-homebrew-release-${{ env.HASH_SUBSTRING }} | |
| mv hb_master_chapel.rb util/packaging/homebrew/chapel-release.rb | |
| git add util/packaging/homebrew/chapel-release.rb | |
| git commit -m "Update chapel-main.rb with changes from chapel.rb" --signoff | |
| git push --set-upstream origin update-chapel-homebrew-release-${{ env.HASH_SUBSTRING }} | |
| echo "Homebrew has updated the formula!" | |
| - name: create pull request | |
| if: ${{ (env.file_changed == 'true') && (env.branch_exists == 'false') }} | |
| run: > | |
| gh pr create | |
| -B main | |
| -H update-chapel-homebrew-release-${{ env.HASH_SUBSTRING }} | |
| --title 'Update our copy of the released Homebrew formula' | |
| --body 'Homebrew released formula file hash is ${{ env.FILE_HASH }}. Created by Github action' | |
| env: | |
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} |