Backport PR to branch #116
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| name: Backport PR to branch | |
| on: | |
| issue_comment: | |
| types: [created] | |
| schedule: | |
| # once a day at 13:00 UTC | |
| - cron: '0 13 * * *' | |
| permissions: | |
| contents: write | |
| issues: write | |
| pull-requests: write | |
| jobs: | |
| cleanup_old_runs: | |
| if: github.event.schedule == '0 13 * * *' | |
| runs-on: ubuntu-20.04 | |
| permissions: | |
| actions: write | |
| env: | |
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
| steps: | |
| - name: Delete old workflow runs | |
| run: | | |
| _UrlPath="/repos/$GITHUB_REPOSITORY/actions/workflows" | |
| _CurrentWorkflowID="$(gh api -X GET "$_UrlPath" | jq '.workflows[] | select(.name == '\""$GITHUB_WORKFLOW"\"') | .id')" | |
| # delete workitems which are 'completed'. (other candidate values of status field are: 'queued' and 'in_progress') | |
| gh api -X GET "$_UrlPath/$_CurrentWorkflowID/runs" --paginate \ | |
| | jq '.workflow_runs[] | select(.status == "completed") | .id' \ | |
| | xargs -I{} gh api -X DELETE "/repos/$GITHUB_REPOSITORY/actions/runs"/{} | |
| backport: | |
| if: github.event.issue.pull_request != '' && contains(github.event.comment.body, '/backport to') | |
| runs-on: ubuntu-20.04 | |
| steps: | |
| - name: Extract backport target branch | |
| uses: actions/github-script@v3 | |
| id: target-branch-extractor | |
| with: | |
| result-encoding: string | |
| script: | | |
| if (context.eventName !== "issue_comment") throw "Error: This action only works on issue_comment events."; | |
| // extract the target branch name from the trigger phrase containing these characters: a-z, A-Z, digits, forward slash, dot, hyphen, underscore | |
| const regex = /^\/backport to ([a-zA-Z\d\/\.\-\_]+)/; | |
| target_branch = regex.exec(context.payload.comment.body); | |
| if (target_branch == null) throw "Error: No backport branch found in the trigger phrase."; | |
| return target_branch[1]; | |
| - name: Post backport started comment to pull request | |
| uses: actions/github-script@v3 | |
| with: | |
| script: | | |
| const backport_start_body = `Started backporting to ${{ steps.target-branch-extractor.outputs.result }}: https://github.com/${context.repo.owner}/${context.repo.repo}/actions/runs/${process.env.GITHUB_RUN_ID}`; | |
| await github.issues.createComment({ | |
| issue_number: context.issue.number, | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| body: backport_start_body | |
| }); | |
| - name: Checkout repo | |
| uses: actions/checkout@v2 | |
| with: | |
| fetch-depth: 0 | |
| - name: Run backport | |
| uses: ./eng/actions/backport | |
| with: | |
| target_branch: ${{ steps.target-branch-extractor.outputs.result }} | |
| auth_token: ${{ secrets.GITHUB_TOKEN }} | |
| pr_description_template: | | |
| Backport of #%source_pr_number% to %target_branch% | |
| /cc %cc_users% | |
| ## Customer Impact | |
| ## Testing | |
| ## Risk | |
| IMPORTANT: Is this backport for a servicing release? If so and this change touches code that ships in a NuGet package, please make certain that you have added any necessary [package authoring](https://github.com/dotnet/runtime/blob/main/docs/project/library-servicing.md) and gotten it explicitly reviewed. |