ayagmar commented on code in PR #14738:
URL: https://github.com/apache/lucene/pull/14738#discussion_r2899932493
##########
.github/workflows/backport.yml:
##########
@@ -0,0 +1,106 @@
+name: Backport PR
+
+on:
+ pull_request:
+ types: [closed]
+
+permissions: {}
+
+jobs:
+ prepare:
+ name: Prepare Backport Targets
+ if: github.event.pull_request.merged == true
+ timeout-minutes: 15
+ runs-on: ubuntu-latest
+ permissions:
+ contents: read # Reads repository workflow script and remote branch refs.
+ pull-requests: write # Adds comments/labels to the source pull request.
+ outputs:
+ dry_run: ${{ steps.plan.outputs.dry_run }}
+ has_targets: ${{ steps.plan.outputs.has_targets }}
+ targets: ${{ steps.plan.outputs.targets }}
+
+ steps:
+ - name: Checkout
+ uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #
v6.0.2
+ with:
+ fetch-depth: 0
+ token: ${{ secrets.GITHUB_TOKEN }}
+ persist-credentials: false
+
+ - name: Plan backports
+ id: plan
+ env:
+ GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+ PR_NUMBER: ${{ github.event.pull_request.number }}
+ PR_MERGE_COMMIT_SHA: ${{ github.event.pull_request.merge_commit_sha
}}
+ BACKPORT_DRY_RUN: ${{ vars.BACKPORT_DRY_RUN || 'true' }}
+ run: ./.github/workflows/backport.sh
+
+ backport:
+ name: Create Backport Pull Requests
+ needs: prepare
+ if: needs.prepare.outputs.has_targets == 'true' &&
needs.prepare.outputs.dry_run != 'true'
+ timeout-minutes: 30
+ runs-on: ubuntu-latest
+ permissions:
+ contents: write # Pushes generated backport branches.
+ pull-requests: write # Creates backport pull requests and comments on
failures.
+ strategy:
+ fail-fast: false
+ matrix:
+ include: ${{ fromJSON(needs.prepare.outputs.targets) }}
+
+ steps:
+ - name: Checkout
+ uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #
v6.0.2
+ with:
+ fetch-depth: 0
+ token: ${{ secrets.GITHUB_TOKEN }}
+ persist-credentials: false
+
+ - name: Cherry-pick with approved action
+ id: cherry_pick
+ continue-on-error: true
+ uses:
carloscastrojumo/github-cherry-pick-action@503773289f4a459069c832dc628826685b75b4b3
# v1.0.10
+ with:
+ token: ${{ secrets.GITHUB_TOKEN }}
+ branch: ${{ matrix.target }}
+ cherry-pick-branch: backport-${{ github.event.pull_request.number
}}-to-${{ matrix.target }}
+ title: '[Backport ${{ matrix.target }}] {old_title}'
+ body: |
+ ## 🔄 Automatic Backport
+
+ Backport of #{old_pull_request_id} to `${{ matrix.target }}`.
+
+ **Target:** `${{ matrix.target }}`
+ **Version:** `${{ matrix.version }}`
+ labels: |
+ backport
+ inherit_labels: 'false'
+
+ - name: Handle failed action backport
+ if: steps.cherry_pick.outcome != 'success'
+ env:
+ GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+ PR_NUMBER: ${{ github.event.pull_request.number }}
+ TARGET_BRANCH: ${{ matrix.target }}
+ run: |
+ body="❌ **Backport to \`${TARGET_BRANCH}\`
failed**"$'\n\n'"Automatic cherry-pick action failed for this target. Please
inspect workflow logs and backport manually if needed."
+ gh pr comment "$PR_NUMBER" --body "$body"
Review Comment:
In dry-run mode we do not take actions on the PR
The `backport` job is skipped entirely when `dry_run == true`, and in the
planning script the comment/label helpers only log what they would do. So
dry-run is observability only to test the waters let's say before flipping the
switch
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