247f32e6ef
The workflow can be triggered by creating a comment on a closed PR: /backport <TARGET_BRANCH> The backport can only be triggered by people with write access to the repository.
50 lines
1.9 KiB
YAML
50 lines
1.9 KiB
YAML
name: Backport merged pull request
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on:
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issue_comment:
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types: [created]
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permissions:
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contents: write # for comment creation on original PR
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pull-requests: write
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jobs:
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backport:
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name: Backport pull request
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runs-on: ubuntu-latest
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# Only run when the comment starts with the `/backport` command on a PR and
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# the commenter has write access to the repository. We do not want to allow
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# everybody to trigger backports and create branches in our repository.
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if: >
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github.event.issue.pull_request &&
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startsWith(github.event.comment.body, '/backport') &&
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(
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github.event.comment.author_association == 'OWNER' ||
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github.event.comment.author_association == 'COLLABORATOR' ||
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github.event.comment.author_association == 'MEMBER'
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)
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steps:
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- uses: actions/checkout@v4
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- name: Get backport metadata
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# the target branch is the first argument after `/backport`
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run: |
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set -euo pipefail
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body="${{ github.event.comment.body }}"
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labels_json='${{ toJSON(github.event.pull_request.labels || github.event.issue.labels) }}'
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target=$(echo "$body" | sed -n 's/.*\/backport[[:space:]]\+\([^[:space:]]\+\).*/\1/p')
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if [ -z "$target" ]; then
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echo "No backport target found in comment." >&2
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exit 1
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fi
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echo "BACKPORT_TARGET=$target" >> $GITHUB_ENV
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labels=$(echo "$labels_json" | jq -r 'if . == null then "" else map(.name) | join(",") end')
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if [ -z "$labels" ]; then
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echo "BACKPORT_PR_LABELS=backport" >> $GITHUB_ENV
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else
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echo "BACKPORT_PR_LABELS=backport,$labels" >> $GITHUB_ENV
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fi
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- name: Create backport pull request
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uses: korthout/backport-action@v4
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with:
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add_labels: ${{ env.BACKPORT_PR_LABELS }}
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target_branches: ${{ env.BACKPORT_TARGET }} |