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Ning Sun
27b0ca6676
* ci: add backport workflow to create backport PRs from backport labels Signed-off-by: Ning Sun <sunning@greptime.com> * ci: document backport labels in PR template and AGENTS.md Signed-off-by: Ning Sun <sunning@greptime.com> --------- Signed-off-by: Ning Sun <sunning@greptime.com>
96 lines
3.3 KiB
YAML
96 lines
3.3 KiB
YAML
name: Backport
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on:
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pull_request_target:
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types: [closed]
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permissions:
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contents: write
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pull-requests: write
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jobs:
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backport:
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name: Backport PR
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if: github.event.pull_request.merged == true
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runs-on: ubuntu-latest
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timeout-minutes: 15
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steps:
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- name: Checkout
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uses: actions/checkout@v6
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with:
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fetch-depth: 0
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token: ${{ secrets.GH_PERSONAL_ACCESS_TOKEN }}
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- name: Extract backport labels
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id: extract-labels
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env:
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LABELS: ${{ toJson(github.event.pull_request.labels.*.name) }}
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run: |
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labels=$(echo "$LABELS" | jq -r '.[]' | grep -oP '^backport-\K.+' || true)
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if [ -z "$labels" ]; then
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echo "No backport labels found, skipping."
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echo "has_labels=false" >> "$GITHUB_OUTPUT"
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exit 0
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fi
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echo "has_labels=true" >> "$GITHUB_OUTPUT"
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echo "targets<<EOF" >> "$GITHUB_OUTPUT"
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echo "$labels" >> "$GITHUB_OUTPUT"
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echo "EOF" >> "$GITHUB_OUTPUT"
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- name: Cherry-pick and create backport PRs
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if: steps.extract-labels.outputs.has_labels == 'true'
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env:
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GH_TOKEN: ${{ secrets.GH_PERSONAL_ACCESS_TOKEN }}
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PR_NUMBER: ${{ github.event.pull_request.number }}
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PR_TITLE: ${{ github.event.pull_request.title }}
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PR_BODY: ${{ github.event.pull_request.body }}
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AUTHOR: ${{ github.event.pull_request.merged_by.login }}
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BASE_BRANCH: ${{ github.event.pull_request.base.ref }}
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run: |
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git config user.name "github-actions[bot]"
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git config user.email "github-actions[bot]@users.noreply.github.com"
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MERGE_COMMIT=$(gh pr view "$PR_NUMBER" --json mergeCommit --jq '.mergeCommit.oid')
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while IFS= read -r target; do
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release_branch="release/${target}"
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head_branch="backport/${target}/pr-${PR_NUMBER}"
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echo "=== Backporting to ${release_branch} ==="
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if ! git ls-remote --exit-code origin "${release_branch}" >/dev/null 2>&1; then
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echo "WARNING: Branch '${release_branch}' does not exist, skipping."
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continue
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fi
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git fetch origin "${release_branch}"
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git checkout -b "${head_branch}" "origin/${release_branch}"
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if ! git cherry-pick -x "${MERGE_COMMIT}"; then
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echo "ERROR: Cherry-pick failed for ${release_branch}. Creating an issue instead."
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gh issue create \
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--title "Backport failure: PR #${PR_NUMBER} to ${release_branch}" \
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--body "Cherry-pick of ${MERGE_COMMIT} (PR #${PR_NUMBER}) failed on ${release_branch}. Manual backport required." \
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git cherry-pick --abort
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git checkout "${BASE_BRANCH}"
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git branch -D "${head_branch}"
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continue
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fi
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git push origin "${head_branch}"
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gh pr create \
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--base "${release_branch}" \
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--head "${head_branch}" \
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--title "${PR_TITLE} [Backport ${release_branch}]" \
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--body "Backport of #${PR_NUMBER} to ${release_branch}.
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---
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Original PR: #${PR_NUMBER}
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Merged by: @${AUTHOR}"
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git checkout "${BASE_BRANCH}"
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git branch -D "${head_branch}"
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done <<< "${{ steps.extract-labels.outputs.targets }}"
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