diff --git a/.github/workflows/backport-fixup.yml b/.github/workflows/backport-fixup.yml new file mode 100644 index 00000000000..1f396a69e51 --- /dev/null +++ b/.github/workflows/backport-fixup.yml @@ -0,0 +1,90 @@ +# Fixes up Mergify-created backport PRs to include necessary labels and other +# information for release notes generation + +name: Backport Fixup + +on: + pull_request: + types: [opened] + workflow_dispatch: + inputs: + pr: + description: 'Number of the Pull Request to Fixup' + require: true + +permissions: + pull-requests: write + contents: write + +jobs: + resolve_prs: + name: Resolve PRs + runs-on: ubuntu-latest + # If triggering PR actually is a backport, then original_pr will be set + outputs: + backport_pr: ${{ steps.backport.outputs.pr }} + original_pr: ${{ steps.original.outputs.pr }} + + steps: + - uses: actions/checkout@v3 + - name: Figure out backport PR number + id: backport + run: | + if [[ -z "${{ inputs.pr }}" ]]; then + echo "pr=${{ github.event.number }}" >> "$GITHUB_OUTPUT" + else + echo "pr=${{ inputs.pr }}" >> "$GITHUB_OUTPUT" + fi + - name: Figure out original PR number (if one exists) + id: original + env: + GH_TOKEN: ${{ github.token }} + run: | + BP_PR=${{ steps.backport.outputs.pr }} + TITLE=$(gh pr view --json title --jq '.title' $BP_PR) + if [[ "$TITLE" =~ \(backport\ #([0-9]+)\) ]]; then + echo "pr=${BASH_REMATCH[1]}" >> "$GITHUB_OUTPUT" + else + echo "$BP_PR is not a backport PR!" >> $GITHUB_STEP_SUMMARY + fi + + fixup_backport: + name: Fixup the backport PR + runs-on: ubuntu-latest + needs: [resolve_prs] + if: ${{ needs.resolve_prs.outputs.original_pr }} + + steps: + - uses: actions/checkout@v3 + - name: Copy over labels + env: + GH_TOKEN: ${{ github.token }} + run: | + BP_PR=${{ needs.resolve_prs.outputs.backport_pr }} + ORIG_PR=${{ needs.resolve_prs.outputs.original_pr }} + + # Long line but the paste joining must be done right away or we run into issues with spaces in labels + LABELS=$(gh pr view --json labels --jq '.labels | .[].name | select(. != "Backported")' $ORIG_PR | paste -sd "," -) + gh pr edit $BP_PR --add-label "$LABELS" + - name: Copy over body + env: + GH_TOKEN: ${{ github.token }} + run: | + BP_PR=${{ needs.resolve_prs.outputs.backport_pr }} + ORIG_PR=${{ needs.resolve_prs.outputs.original_pr }} + + gh pr view --json body --jq '.body' $ORIG_PR > orig_body.txt + gh pr view --json body --jq '.body' $BP_PR > bp_body.txt + + if grep -q '# Original PR Body' bp_body.txt; then + # Copy BP PR body but remove original PR body from bottom + sed '/# Original PR Body/q' bp_body.txt > new_bp_body.txt + echo "" >> new_bp_body.txt + else + cp bp_body.txt new_bp_body.txt + echo -e "\n----\n\n# Original PR Body\n" >> new_bp_body.txt + fi + + cat orig_body.txt >> new_bp_body.txt + + gh pr edit $BP_PR --body-file new_bp_body.txt