Resolves: MTV-3743 | Standardize edit forklift settings #1296
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| name: Backport | |
| on: | |
| issue_comment: | |
| types: [created] | |
| concurrency: | |
| group: backport-${{ github.event.issue.number }} | |
| cancel-in-progress: false | |
| jobs: | |
| backport: | |
| name: Backport | |
| runs-on: ubuntu-latest | |
| permissions: | |
| contents: write | |
| pull-requests: write | |
| issues: write | |
| if: | | |
| github.event.issue.pull_request && | |
| ( | |
| startsWith(github.event.comment.body, '/backport') || | |
| startsWith(github.event.comment.body, '/cherrypick') || | |
| startsWith(github.event.comment.body, '/cherry-pick') | |
| ) && | |
| contains(fromJSON('["OWNER","MEMBER","COLLABORATOR"]'), github.event.comment.author_association) | |
| steps: | |
| - name: Checkout | |
| uses: actions/checkout@v4 | |
| with: | |
| fetch-depth: 0 | |
| token: ${{ secrets.GITHUB_TOKEN }} | |
| - name: Ensure jq is available | |
| run: | | |
| set -euo pipefail | |
| if ! command -v jq >/dev/null 2>&1; then | |
| sudo apt-get update | |
| sudo apt-get install -y jq | |
| fi | |
| - name: Parse comment and validate inputs | |
| id: parse_comment | |
| env: | |
| COMMENT_BODY: ${{ github.event.comment.body }} | |
| run: | | |
| set -euo pipefail | |
| # Accept /backport, /cherrypick, /cherry-pick | |
| comment_body="$COMMENT_BODY" | |
| pr_number="${{ github.event.issue.number }}" | |
| echo "📝 Parsing comment: $comment_body" | |
| # Split into words | |
| read -ra words <<< "$comment_body" | |
| # Extract the command word and branch | |
| cmd="${words[0]}" | |
| branch_name="${words[1]:-}" | |
| # Flags (e.g., --dry-run) may appear after the branch | |
| dry_run="false" | |
| for word in "${words[@]:2}"; do | |
| if [[ "$word" == "--dry-run" ]]; then | |
| dry_run="true" | |
| break | |
| fi | |
| done | |
| # Validate presence of branch | |
| if [[ -z "$branch_name" ]]; then | |
| echo "::error::Missing branch name in command" | |
| echo "::error::Usage: ${cmd} release-X.Y[.Z] [--dry-run]" | |
| exit 1 | |
| fi | |
| # Validate branch format: release-X.Y or release-X.Y.Z | |
| if [[ ! "$branch_name" =~ ^release-[0-9]+\.[0-9]+(\.[0-9]+)?$ ]]; then | |
| echo "::error::Invalid branch name format: $branch_name" | |
| echo "::error::Branch name must follow pattern: release-X.Y or release-X.Y.Z (e.g., release-2.9 or release-2.9.3)" | |
| exit 1 | |
| fi | |
| # Outputs | |
| echo "branch_name=$branch_name" >> $GITHUB_OUTPUT | |
| echo "pr_number=$pr_number" >> $GITHUB_OUTPUT | |
| echo "dry_run=$dry_run" >> $GITHUB_OUTPUT | |
| echo "✅ Parsed:" | |
| echo " - Command: $cmd" | |
| echo " - Target branch: $branch_name" | |
| echo " - PR number: $pr_number" | |
| echo " - Dry run: $dry_run" | |
| - name: Verify PR and target branch exist | |
| id: verify_refs | |
| env: | |
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
| PR_NUMBER: ${{ steps.parse_comment.outputs.pr_number }} | |
| BRANCH_NAME: ${{ steps.parse_comment.outputs.branch_name }} | |
| run: | | |
| set -euo pipefail | |
| echo "🔍 Verifying PR #$PR_NUMBER..." | |
| repo="${{ github.repository }}" | |
| api="${{ github.api_url }}/repos/${repo}/pulls/${PR_NUMBER}" | |
| pr_data=$(curl -sSf \ | |
| -H "Authorization: Bearer $GITHUB_TOKEN" \ | |
| -H "Accept: application/vnd.github+json" \ | |
| "$api" 2>/dev/null || echo "null") | |
| if [[ "$pr_data" == "null" ]]; then | |
| echo "::error::PR #$PR_NUMBER not found" | |
| exit 1 | |
| fi | |
| pr_merged=$(echo "$pr_data" | jq -r '.merged') | |
| pr_title=$(echo "$pr_data" | jq -r '.title') | |
| pr_head_ref=$(echo "$pr_data" | jq -r '.head.ref') | |
| echo " - PR Merged: $pr_merged" | |
| echo " - PR Title: $pr_title" | |
| echo " - Head ref: $pr_head_ref" | |
| if [[ "$pr_merged" != "true" ]]; then | |
| echo "::error::PR #$PR_NUMBER is not merged (merged=$pr_merged). Aborting." | |
| exit 1 | |
| fi | |
| echo "🔍 Verifying target branch '$BRANCH_NAME' on origin..." | |
| if git ls-remote --exit-code --heads origin "$BRANCH_NAME" >/dev/null 2>&1; then | |
| echo " ✅ Target branch exists" | |
| else | |
| echo "::error::Target branch '$BRANCH_NAME' does not exist on remote 'origin'" | |
| exit 1 | |
| fi | |
| echo "pr_title=$pr_title" >> $GITHUB_OUTPUT | |
| echo "pr_merged=$pr_merged" >> $GITHUB_OUTPUT | |
| - name: Post status comment (start) | |
| uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| const { owner, repo } = context.repo; | |
| const issue_number = context.issue.number; | |
| const branch = '${{ steps.parse_comment.outputs.branch_name }}'; | |
| const dryRun = '${{ steps.parse_comment.outputs.dry_run }}' === 'true'; | |
| const body = `🔄 **Backport Status** | |
| Starting backport of PR #${{ steps.parse_comment.outputs.pr_number }} to \`${branch}\` | |
| ${dryRun ? '🧪 **Dry run mode** - No actual changes will be made' : '🚀 **Live mode** - Changes will be applied'} | |
| [View workflow run](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})`; | |
| await github.rest.issues.createComment({ owner, repo, issue_number, body }); | |
| - name: Perform backport | |
| id: backport | |
| env: | |
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
| uses: kiegroup/git-backporting@7ff4fce545cf2b9170c91c032bf66a9348ba2490 | |
| with: | |
| target-branch: ${{ steps.parse_comment.outputs.branch_name }} | |
| pull-request: ${{ github.server_url }}/${{ github.repository }}/pull/${{ steps.parse_comment.outputs.pr_number }} | |
| no-squash: true | |
| auth: ${{ secrets.GITHUB_TOKEN }} | |
| dry-run: ${{ steps.parse_comment.outputs.dry_run }} | |
| - name: Post success comment | |
| if: success() | |
| uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| const { owner, repo } = context.repo; | |
| const issue_number = context.issue.number; | |
| const branch = '${{ steps.parse_comment.outputs.branch_name }}'; | |
| const dryRun = '${{ steps.parse_comment.outputs.dry_run }}' === 'true'; | |
| let body; | |
| if (dryRun) { | |
| body = `✅ **Backport Dry Run Completed** | |
| The backport of PR #${{ steps.parse_comment.outputs.pr_number }} to \`${branch}\` was successful in dry-run mode. | |
| To perform the actual backport, run: | |
| \`/backport ${branch}\` (without --dry-run flag)`; | |
| } else { | |
| body = `✅ **Backport Completed Successfully** | |
| PR #${{ steps.parse_comment.outputs.pr_number }} has been successfully backported to \`${branch}\`. | |
| A new pull request should have been created with the backported changes.`; | |
| } | |
| await github.rest.issues.createComment({ owner, repo, issue_number, body }); | |
| - name: Label new backport PR (skip on dry run) | |
| if: success() && steps.parse_comment.outputs.dry_run == 'false' | |
| uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| const { owner, repo } = context.repo; | |
| const branch = '${{ steps.parse_comment.outputs.branch_name }}'; | |
| const originalNumber = parseInt('${{ steps.parse_comment.outputs.pr_number }}', 10); | |
| const originalTitle = `${{ toJSON(steps.verify_refs.outputs.pr_title) }}`; | |
| // Heuristic: find the most recent open PR to the target branch | |
| // that looks like a backport of the original PR. | |
| // We check title/body for the original PR number or title. | |
| const openPRs = await github.paginate(github.rest.pulls.list, { | |
| owner, repo, state: 'open', base: branch, per_page: 100 | |
| }); | |
| // 2-hour window to avoid mislabeling old PRs | |
| const TWO_HOURS = 2 * 60 * 60 * 1000; | |
| const now = new Date().getTime(); | |
| const candidates = openPRs.filter(pr => { | |
| const created = new Date(pr.created_at).getTime(); | |
| const fresh = (now - created) < TWO_HOURS; | |
| const title = pr.title || ''; | |
| const body = pr.body || ''; | |
| const mentionsOriginal = | |
| title.includes(`#${originalNumber}`) || | |
| body.includes(`#${originalNumber}`) || | |
| title.toLowerCase().includes('backport') || | |
| title.includes(originalTitle); | |
| return fresh && mentionsOriginal; | |
| }); | |
| if (!candidates.length) { | |
| core.info('No candidate backport PR found to label (yet).'); | |
| return; | |
| } | |
| // Pick the newest candidate | |
| const pr = candidates.sort((a,b) => new Date(b.created_at) - new Date(a.created_at))[0]; | |
| const label = `backport-${branch}`; | |
| // Ensure label exists (create if missing) | |
| try { | |
| await github.rest.issues.getLabel({ owner, repo, name: label }); | |
| } catch { | |
| await github.rest.issues.createLabel({ | |
| owner, repo, name: label, color: 'ededed', | |
| description: `Backport PRs targeting ${branch}` | |
| }); | |
| } | |
| await github.rest.issues.addLabels({ | |
| owner, repo, issue_number: pr.number, labels: [label] | |
| }); | |
| core.info(`Applied label '${label}' to PR #${pr.number}`); | |
| - name: Post failure comment | |
| if: failure() | |
| uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| const { owner, repo } = context.repo; | |
| const issue_number = context.issue.number; | |
| const branch = '${{ steps.parse_comment.outputs.branch_name || 'unknown' }}'; | |
| const body = `❌ **Backport Failed** | |
| The backport of PR #${{ steps.parse_comment.outputs.pr_number || github.event.issue.number }} to \`${branch}\` failed. | |
| Common causes: | |
| - Merge conflicts that require manual resolution | |
| - Target branch doesn't exist | |
| - Invalid branch name format (must be release-X.Y or release-X.Y.Z) | |
| - Invalid PR number | |
| Please check the [workflow logs](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}) for details. | |
| **Usage Examples:** | |
| - \`/backport release-2.9\` - Live backport | |
| - \`/backport release-2.9.3\` - Live backport to a patch branch | |
| - \`/backport release-2.5 --dry-run\` - Test backport without changes`; | |
| await github.rest.issues.createComment({ owner, repo, issue_number, body }); |