mirror of
https://github.com/Comfy-Org/ComfyUI_frontend.git
synced 2026-02-06 08:00:05 +00:00
d1639c4377
## Summary Expands the PR backport workflow so maintainers can target any release branch using labels, instead of being limited to the `core/x.y` release lines. The workflow now collects labels formatted as plain version numbers (`1.24`) as before, plus new prefixes like `branch:release/hotfix` or `backport:partner/foo`, validates that each referenced branch exists, and then cherry-picks the source merge commit to every target. All generated PRs and failure comments reference the actual branch name, making it clear where the backport landed or why it failed. This keeps the existing opt-in flow (`needs-backport`) but makes it flexible enough for custom support and partner branches without extra manual work. ┆Issue is synchronized with this [Notion page](https://www.notion.so/PR-6108-ci-extend-backport-workflow-to-work-with-arbitrary-branches-28f6d73d365081bf85a3d4c40a23bb68) by [Unito](https://www.unito.io)
290 lines
11 KiB
YAML
290 lines
11 KiB
YAML
name: PR Backport
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on:
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pull_request_target:
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types: [closed, labeled]
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branches: [main]
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workflow_dispatch:
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inputs:
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pr_number:
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description: 'PR number to backport'
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required: true
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type: string
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force_rerun:
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description: 'Force rerun even if backports exist'
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required: false
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type: boolean
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default: false
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jobs:
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backport:
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if: >
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(github.event_name == 'pull_request_target' &&
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github.event.pull_request.merged == true &&
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contains(github.event.pull_request.labels.*.name, 'needs-backport')) ||
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github.event_name == 'workflow_dispatch'
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runs-on: ubuntu-latest
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permissions:
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contents: write
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pull-requests: write
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issues: write
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steps:
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- name: Validate inputs for manual triggers
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if: github.event_name == 'workflow_dispatch'
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run: |
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# Validate PR number format
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if ! [[ "${{ inputs.pr_number }}" =~ ^[0-9]+$ ]]; then
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echo "::error::Invalid PR number format. Must be a positive integer."
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exit 1
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fi
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# Validate PR exists and is merged
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if ! gh pr view "${{ inputs.pr_number }}" --json merged >/dev/null 2>&1; then
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echo "::error::PR #${{ inputs.pr_number }} not found or inaccessible."
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exit 1
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fi
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MERGED=$(gh pr view "${{ inputs.pr_number }}" --json merged --jq '.merged')
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if [ "$MERGED" != "true" ]; then
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echo "::error::PR #${{ inputs.pr_number }} is not merged. Only merged PRs can be backported."
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exit 1
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fi
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# Validate PR has needs-backport label
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if ! gh pr view "${{ inputs.pr_number }}" --json labels --jq '.labels[].name' | grep -q "needs-backport"; then
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echo "::error::PR #${{ inputs.pr_number }} does not have 'needs-backport' label."
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exit 1
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fi
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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- name: Checkout repository
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uses: actions/checkout@v5
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with:
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fetch-depth: 0
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- name: Configure git
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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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- name: Check if backports already exist
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id: check-existing
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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PR_NUMBER: ${{ github.event_name == 'workflow_dispatch' && inputs.pr_number || github.event.pull_request.number }}
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run: |
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# Check for existing backport PRs for this PR number
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EXISTING_BACKPORTS=$(gh pr list --state all --search "backport-${PR_NUMBER}-to" --json title,headRefName,baseRefName | jq -r '.[].headRefName')
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if [ -z "$EXISTING_BACKPORTS" ]; then
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echo "skip=false" >> $GITHUB_OUTPUT
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exit 0
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fi
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# For manual triggers with force_rerun, proceed anyway
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if [ "${{ github.event_name }}" = "workflow_dispatch" ] && [ "${{ inputs.force_rerun }}" = "true" ]; then
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echo "skip=false" >> $GITHUB_OUTPUT
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echo "::warning::Force rerun requested - existing backports will be updated"
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exit 0
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fi
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echo "Found existing backport PRs:"
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echo "$EXISTING_BACKPORTS"
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echo "skip=true" >> $GITHUB_OUTPUT
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echo "::warning::Backport PRs already exist for PR #${PR_NUMBER}, skipping to avoid duplicates"
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- name: Collect backport targets
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if: steps.check-existing.outputs.skip != 'true'
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id: targets
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run: |
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TARGETS=()
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declare -A SEEN=()
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if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
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LABELS=$(gh pr view ${{ inputs.pr_number }} --json labels | jq -r '.labels[].name')
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else
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LABELS='${{ toJSON(github.event.pull_request.labels) }}'
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LABELS=$(echo "$LABELS" | jq -r '.[].name')
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fi
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add_target() {
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local label="$1"
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local target="$2"
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if [ -z "$target" ]; then
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return
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fi
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target=$(echo "$target" | xargs)
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if [ -z "$target" ] || [ -n "${SEEN[$target]}" ]; then
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return
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fi
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if git ls-remote --exit-code origin "$target" >/dev/null 2>&1; then
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TARGETS+=("$target")
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SEEN["$target"]=1
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else
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echo "::warning::Label '${label}' references missing branch '${target}'"
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fi
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}
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while IFS= read -r label; do
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[ -z "$label" ] && continue
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if [[ "$label" =~ ^branch:(.+)$ ]]; then
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add_target "$label" "${BASH_REMATCH[1]}"
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elif [[ "$label" =~ ^backport:(.+)$ ]]; then
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add_target "$label" "${BASH_REMATCH[1]}"
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elif [[ "$label" =~ ^[0-9]+\.[0-9]+$ ]]; then
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add_target "$label" "core/${label}"
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fi
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done <<< "$LABELS"
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if [ "${#TARGETS[@]}" -eq 0 ]; then
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echo "::error::No backport targets found (use labels like '1.24' or 'branch:release/hotfix')"
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exit 1
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fi
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echo "targets=${TARGETS[*]}" >> $GITHUB_OUTPUT
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echo "Found backport targets: ${TARGETS[*]}"
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- name: Backport commits
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if: steps.check-existing.outputs.skip != 'true'
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id: backport
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env:
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PR_NUMBER: ${{ github.event_name == 'workflow_dispatch' && inputs.pr_number || github.event.pull_request.number }}
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run: |
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FAILED=""
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SUCCESS=""
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# Get PR data for manual triggers
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if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
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PR_DATA=$(gh pr view ${{ inputs.pr_number }} --json title,mergeCommit)
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PR_TITLE=$(echo "$PR_DATA" | jq -r '.title')
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MERGE_COMMIT=$(echo "$PR_DATA" | jq -r '.mergeCommit.oid')
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else
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PR_TITLE="${{ github.event.pull_request.title }}"
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MERGE_COMMIT="${{ github.event.pull_request.merge_commit_sha }}"
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fi
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for target in ${{ steps.targets.outputs.targets }}; do
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TARGET_BRANCH="${target}"
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SAFE_TARGET=$(echo "$TARGET_BRANCH" | tr '/' '-')
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BACKPORT_BRANCH="backport-${PR_NUMBER}-to-${SAFE_TARGET}"
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echo "::group::Backporting to ${TARGET_BRANCH}"
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# Fetch target branch (fail if doesn't exist)
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if ! git fetch origin "${TARGET_BRANCH}"; then
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echo "::error::Target branch ${TARGET_BRANCH} does not exist"
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FAILED="${FAILED}${TARGET_BRANCH}:branch-missing "
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echo "::endgroup::"
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continue
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fi
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# Create backport branch
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git checkout -b "${BACKPORT_BRANCH}" "origin/${TARGET_BRANCH}"
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# Try cherry-pick
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if git cherry-pick "${MERGE_COMMIT}"; then
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git push origin "${BACKPORT_BRANCH}"
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SUCCESS="${SUCCESS}${TARGET_BRANCH}:${BACKPORT_BRANCH} "
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echo "Successfully created backport branch: ${BACKPORT_BRANCH}"
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# Return to main (keep the branch, we need it for PR)
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git checkout main
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else
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# Get conflict info
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CONFLICTS=$(git diff --name-only --diff-filter=U | tr '\n' ',')
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git cherry-pick --abort
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echo "::error::Cherry-pick failed due to conflicts"
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FAILED="${FAILED}${TARGET_BRANCH}:conflicts:${CONFLICTS} "
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# Clean up the failed branch
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git checkout main
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git branch -D "${BACKPORT_BRANCH}"
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fi
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echo "::endgroup::"
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done
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echo "success=${SUCCESS}" >> $GITHUB_OUTPUT
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echo "failed=${FAILED}" >> $GITHUB_OUTPUT
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if [ -n "${FAILED}" ]; then
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exit 1
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fi
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- name: Create PR for each successful backport
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if: steps.check-existing.outputs.skip != 'true' && steps.backport.outputs.success
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env:
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GH_TOKEN: ${{ secrets.PR_GH_TOKEN }}
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PR_NUMBER: ${{ github.event_name == 'workflow_dispatch' && inputs.pr_number || github.event.pull_request.number }}
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run: |
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# Get PR data for manual triggers
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if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
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PR_DATA=$(gh pr view ${{ inputs.pr_number }} --json title,author)
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PR_TITLE=$(echo "$PR_DATA" | jq -r '.title')
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PR_AUTHOR=$(echo "$PR_DATA" | jq -r '.author.login')
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else
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PR_TITLE="${{ github.event.pull_request.title }}"
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PR_AUTHOR="${{ github.event.pull_request.user.login }}"
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fi
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for backport in ${{ steps.backport.outputs.success }}; do
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IFS=':' read -r target branch <<< "${backport}"
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if PR_URL=$(gh pr create \
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--base "${target}" \
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--head "${branch}" \
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--title "[backport ${target}] ${PR_TITLE}" \
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--body "Backport of #${PR_NUMBER} to \`${target}\`"$'\n\n'"Automatically created by backport workflow." \
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--label "backport" 2>&1); then
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# Extract PR number from URL
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PR_NUM=$(echo "${PR_URL}" | grep -o '[0-9]*$')
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if [ -n "${PR_NUM}" ]; then
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gh pr comment "${PR_NUMBER}" --body "@${PR_AUTHOR} Successfully backported to #${PR_NUM}"
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fi
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else
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echo "::error::Failed to create PR for ${target}: ${PR_URL}"
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# Still try to comment on the original PR about the failure
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gh pr comment "${PR_NUMBER}" --body "@${PR_AUTHOR} Backport branch created but PR creation failed for \`${target}\`. Please create the PR manually from branch \`${branch}\`"
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fi
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done
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- name: Comment on failures
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if: steps.check-existing.outputs.skip != 'true' && failure() && steps.backport.outputs.failed
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env:
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GH_TOKEN: ${{ github.token }}
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run: |
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if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
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PR_DATA=$(gh pr view ${{ inputs.pr_number }} --json author,mergeCommit)
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PR_NUMBER="${{ inputs.pr_number }}"
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PR_AUTHOR=$(echo "$PR_DATA" | jq -r '.author.login')
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MERGE_COMMIT=$(echo "$PR_DATA" | jq -r '.mergeCommit.oid')
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else
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PR_NUMBER="${{ github.event.pull_request.number }}"
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PR_AUTHOR="${{ github.event.pull_request.user.login }}"
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MERGE_COMMIT="${{ github.event.pull_request.merge_commit_sha }}"
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fi
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for failure in ${{ steps.backport.outputs.failed }}; do
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IFS=':' read -r target reason conflicts <<< "${failure}"
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if [ "${reason}" = "branch-missing" ]; then
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gh pr comment "${PR_NUMBER}" --body "@${PR_AUTHOR} Backport failed: Branch \`${target}\` does not exist"
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elif [ "${reason}" = "conflicts" ]; then
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# Convert comma-separated conflicts back to newlines for display
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CONFLICTS_LIST=$(echo "${conflicts}" | tr ',' '\n' | sed 's/^/- /')
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COMMENT_BODY="@${PR_AUTHOR} Backport to \`${target}\` failed: Merge conflicts detected."$'\n\n'"Please manually cherry-pick commit \`${MERGE_COMMIT}\` to the \`${target}\` branch."$'\n\n'"<details><summary>Conflicting files</summary>"$'\n\n'"${CONFLICTS_LIST}"$'\n\n'"</details>"
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gh pr comment "${PR_NUMBER}" --body "${COMMENT_BODY}"
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fi
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done
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