Auto-Merge Labeled PRs with Date Check #352
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| name: Auto-Merge Labeled PRs with Date Check | |
| on: | |
| workflow_dispatch: # Allows manual trigger | |
| schedule: | |
| # Runs daily at 10:58 AM UTC (adjust for your timezone, cron is UTC) | |
| - cron: "58 10 * * *" | |
| # Minimum permissions required for this workflow | |
| permissions: | |
| pull-requests: write | |
| contents: write | |
| repository-projects: read | |
| jobs: | |
| find_and_merge_prs: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Checkout Repository | |
| uses: actions/checkout@v4 | |
| - name: Setup GitHub CLI | |
| run: | | |
| echo "${{ secrets.ADMIN_TOKEN }}" | gh auth login --with-token | |
| gh config set prompt-enabled false | |
| - name: Get current date for comparison | |
| id: get_date | |
| run: echo "CURRENT_DATE=$(date +'%Y-%m-%d')" >> $GITHUB_ENV | |
| - name: Find and Process PRs with "pending" label | |
| run: | | |
| PR_NUMBERS=$(gh pr list --label "pending" --state "open" --json number,title,isDraft -q '.[] | select(.isDraft == false) | .number') | |
| if [ -z "$PR_NUMBERS" ]; then | |
| echo "No non-draft PRs with 'pending' label found. Exiting." | |
| exit 0 | |
| fi | |
| echo "Found PRs with 'pending' label: $PR_NUMBERS" | |
| for pr_number in $PR_NUMBERS; do | |
| echo "--- Checking PR #$pr_number ---" | |
| INDEX_FILES_CHANGED=$(gh pr view "$pr_number" --json files -q '.files[].path' | grep -E '^content/.*/index(\.[a-zA-Z]+)?\.md$' || true) | |
| if [ -z "$INDEX_FILES_CHANGED" ]; then | |
| echo "PR #$pr_number does not modify any content/index.md file. Skipping." | |
| continue | |
| fi | |
| echo "PR #$pr_number modifies the following content/index.md files:" | |
| echo "$INDEX_FILES_CHANGED" | |
| PR_READY_TO_MERGE="false" | |
| for file in $INDEX_FILES_CHANGED; do | |
| echo " - Checking file" | |
| BRANCH_NAME=$(gh pr view "$pr_number" --json headRefName -q .headRefName) | |
| if [ -z "$BRANCH_NAME" ]; then | |
| echo " - Could not determine head branch name for PR #$pr_number. Skipping file." | |
| continue | |
| fi | |
| API_URL="repos/$GITHUB_REPOSITORY/contents/$file?ref=$BRANCH_NAME" | |
| FILE_CONTENT_RAW=$(gh api "$API_URL" --jq '.content' || true) | |
| if [ -z "$FILE_CONTENT_RAW" ]; then | |
| echo " - ERROR: Failed to fetch content for file from branch '$BRANCH_NAME'. This likely means the branch does not exist or the file is not on that branch." | |
| continue | |
| fi | |
| FILE_CONTENT=$(echo "$FILE_CONTENT_RAW" | base64 --decode || true) | |
| YAML_DATE=$(echo "$FILE_CONTENT" | sed -n '/^---$/,/^---$/p' | grep -E '^date:' | head -1 | awk '{print $2}' | sed -e "s/'//g" -e "s/\"//g" -e "s/\\[//g" -e "s/\\]//g" -e "s/,//g") | |
| if [ -z "$YAML_DATE" ]; then | |
| echo " - No 'date:' found in front matter or unable to parse. Skipping date check for this file." | |
| continue | |
| fi | |
| if [ "$YAML_DATE" == "$CURRENT_DATE" ]; then | |
| echo " - Date matches today's date. This PR is a candidate for merge." | |
| PR_READY_TO_MERGE="true" | |
| break | |
| else | |
| echo " - Date in file ('$YAML_DATE') does not match today's date ('$CURRENT_DATE')." | |
| fi | |
| done | |
| if [ "$PR_READY_TO_MERGE" == "true" ]; then | |
| echo "Attempting to merge PR #$pr_number..." | |
| MERGE_OUTPUT=$(gh pr merge "$pr_number" --squash --delete-branch --auto" 2>&1 || true) | |
| MERGE_STATUS=$? | |
| echo $MERGE_OUTPUT | |
| if echo "$MERGE_OUTPUT" | grep -q "Merged pull request"; then | |
| echo "Successfully merged PR #$pr_number." | |
| else | |
| echo "Failed to merge PR #$pr_number. Error details:" | |
| echo "$MERGE_OUTPUT" | |
| # Read the template file | |
| TEMPLATE_PATH=".github/reply_templates/merge_errors.txt" | |
| if [ ! -f "$TEMPLATE_PATH" ]; then | |
| echo "ERROR: Merge error template file not found at $TEMPLATE_PATH. Skipping comment." | |
| # Fallback to a hardcoded generic message if template is missing | |
| COMMENT_BODY="Hi there,\n\nUnfortunately, the automated merge for this Pull Request (#$pr_number) failed. Please check the workflow logs for details.\n\n_This comment was automatically generated._" | |
| else | |
| # For safety, we'll use a delimiter other than / (like @) and escape any @ in the variable | |
| ESCAPED_FAILURE_REASONS=$(echo "$MERGE_OUTPUT" | sed -e 's/[]\/$*.^[]/\\&/g' | sed -e ':a;N;$!ba;s/\n/\\n/g') | |
| COMMENT_BODY=$(sed "s|<<FAILURE_REASONS>>|$ESCAPED_FAILURE_REASONS|g" "$TEMPLATE_PATH") | |
| fi | |
| gh pr comment "$pr_number" --body "$COMMENT_BODY" | |
| echo "Commented on PR #$pr_number about the merge failure." | |
| fi | |
| else | |
| echo "PR #$pr_number is not eligible for merge based on date check." | |
| fi | |
| done |