Dev Experience #7
Workflow file for this run
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| name: Backport on Merge | |
| on: | |
| pull_request: | |
| types: [closed] | |
| jobs: | |
| backport: | |
| if: github.event.pull_request.merged == true | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Checkout code | |
| uses: actions/checkout@v3 | |
| with: | |
| fetch-depth: 0 | |
| - name: Set up Git | |
| run: | | |
| git config user.name "github-actions[bot]" | |
| git config user.email "github-actions[bot]@users.noreply.github.com" | |
| - name: Check for Backport Label | |
| id: check-label | |
| run: | | |
| labels="${{ github.event.pull_request.labels.*.name }}" | |
| if [[ "$labels" == *"backport"* ]]; then | |
| echo "backport=true" >> $GITHUB_OUTPUT | |
| else | |
| echo "backport=false" >> $GITHUB_OUTPUT | |
| fi | |
| - name: List and sort release branches | |
| id: list-branches | |
| run: | | |
| BRANCHES=$(git for-each-ref --format='%(refname:short)' refs/remotes/origin/release/* | sed 's|origin/release/||' | sort -Vr) | |
| BETA=$(echo "$BRANCHES" | head -n 1) | |
| STABLE=$(echo "$BRANCHES" | head -n 2 | tail -n 1) | |
| echo "beta=$BETA" >> $GITHUB_OUTPUT | |
| echo "stable=$STABLE" >> $GITHUB_OUTPUT | |
| # Fetch latest tags for beta and stable | |
| # Beta tag is in the format vX.Y.Z-beta.W | |
| # Stable tag is in the format vX.Y.Z | |
| LATEST_BETA_TAG=$(git tag -l "v*.*.0-beta.*" | sort -Vr | head -n 1) | |
| LATEST_STABLE_TAG=$(git tag -l "v*.*.*" | grep -v -- "-beta" | sort -Vr | head -n 1) | |
| # Increment latest beta tag | |
| NEW_BETA_TAG=$(echo $LATEST_BETA_TAG | awk -F '.' '{print $1 "." $2 ".0-beta." ($4+1)}') | |
| # Increment latest stable tag | |
| NEW_STABLE_TAG=$(echo $LATEST_STABLE_TAG | awk -F '.' '{print $1 "." $2 "." ($3+1)}') | |
| echo "latest_beta_tag=$LATEST_BETA_TAG" >> $GITHUB_OUTPUT | |
| echo "latest_stable_tag=$LATEST_STABLE_TAG" >> $GITHUB_OUTPUT | |
| echo "new_beta_tag=$NEW_BETA_TAG" >> $GITHUB_OUTPUT | |
| echo "new_stable_tag=$NEW_STABLE_TAG" >> $GITHUB_OUTPUT | |
| - name: Echo branch and tag information | |
| run: | | |
| echo "Beta branch: ${{ steps.list-branches.outputs.beta }}" | |
| echo "Stable branch: ${{ steps.list-branches.outputs.stable }}" | |
| echo "Latest beta tag: ${{ steps.list-branches.outputs.latest_beta_tag }}" | |
| echo "Latest stable tag: ${{ steps.list-branches.outputs.latest_stable_tag }}" | |
| echo "New beta tag: ${{ steps.list-branches.outputs.new_beta_tag }}" | |
| echo "New stable tag: ${{ steps.list-branches.outputs.new_stable_tag }}" | |
| - name: Trigger Backport | |
| if: steps.check-label.outputs.backport == 'true' | |
| run: | | |
| set -e | |
| echo "Backporting to beta ${{ steps.list-branches.outputs.beta }} and stable ${{ steps.list-branches.outputs.stable }}" | |
| # Checkout the beta branch | |
| git checkout ${{ steps.list-branches.outputs.beta }} | |
| # Cherry-pick the last commit from the merged PR | |
| git cherry-pick -m 1 ${{ github.event.pull_request.merge_commit_sha }} || { | |
| echo "Cherry-pick to beta failed due to conflicts." | |
| exit 1 | |
| } | |
| # Create new beta tag | |
| git tag ${{ steps.list-branches.outputs.new_beta_tag }} | |
| # Push the changes and tag to the beta branch | |
| git push origin ${{ steps.list-branches.outputs.beta }} | |
| git push origin ${{ steps.list-branches.outputs.new_beta_tag }} | |
| # Checkout the stable branch | |
| git checkout ${{ steps.list-branches.outputs.stable }} | |
| # Cherry-pick the last commit from the merged PR | |
| git cherry-pick -m 1 ${{ github.event.pull_request.merge_commit_sha }} || { | |
| echo "Cherry-pick to stable failed due to conflicts." | |
| exit 1 | |
| } | |
| # Create new stable tag | |
| git tag ${{ steps.list-branches.outputs.new_stable_tag }} | |
| # Push the changes and tag to the stable branch | |
| git push origin ${{ steps.list-branches.outputs.stable }} | |
| git push origin ${{ steps.list-branches.outputs.new_stable_tag }} |