mirror of
https://github.com/Comfy-Org/ComfyUI_frontend.git
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[feat] Add automatic backport workflow (#4778)
This commit is contained in:
Christian Byrne
165
.github/workflows/backport.yaml
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165
.github/workflows/backport.yaml
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name: Auto Backport
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on:
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pull_request_target:
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types: [closed]
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branches: [main]
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jobs:
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backport:
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if: github.event.pull_request.merged == true && contains(github.event.pull_request.labels.*.name, 'needs-backport')
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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: Checkout repository
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uses: actions/checkout@v4
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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: Extract version labels
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id: versions
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run: |
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# Extract version labels (e.g., "1.24", "1.22")
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VERSIONS=""
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LABELS='${{ toJSON(github.event.pull_request.labels) }}'
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for label in $(echo "$LABELS" | jq -r '.[].name'); do
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# Match version labels like "1.24" (major.minor only)
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if [[ "$label" =~ ^[0-9]+\.[0-9]+$ ]]; then
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# Validate the branch exists before adding to list
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if git ls-remote --exit-code origin "core/${label}" >/dev/null 2>&1; then
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VERSIONS="${VERSIONS}${label} "
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else
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echo "::warning::Label '${label}' found but branch 'core/${label}' does not exist"
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fi
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fi
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done
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if [ -z "$VERSIONS" ]; then
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echo "::error::No version labels found (e.g., 1.24, 1.22)"
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exit 1
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fi
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echo "versions=${VERSIONS}" >> $GITHUB_OUTPUT
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echo "Found version labels: ${VERSIONS}"
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- name: Backport commits
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id: backport
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env:
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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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MERGE_COMMIT: ${{ github.event.pull_request.merge_commit_sha }}
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run: |
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FAILED=""
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SUCCESS=""
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for version in ${{ steps.versions.outputs.versions }}; do
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echo "::group::Backporting to core/${version}"
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TARGET_BRANCH="core/${version}"
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BACKPORT_BRANCH="backport-${PR_NUMBER}-to-${version}"
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# Fetch target branch (fail if doesn't exist)
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if ! git fetch origin "${TARGET_BRANCH}"; then
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echo "::error::Target branch ${TARGET_BRANCH} does not exist"
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FAILED="${FAILED}${version}:branch-missing "
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echo "::endgroup::"
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continue
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fi
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# Create backport branch
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git checkout -b "${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}${version}:${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="${FAILED}${version}: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.backport.outputs.success
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env:
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GH_TOKEN: ${{ secrets.PR_GH_TOKEN }}
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run: |
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PR_TITLE="${{ github.event.pull_request.title }}"
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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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for backport in ${{ steps.backport.outputs.success }}; do
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IFS=':' read -r version branch <<< "${backport}"
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if PR_URL=$(gh pr create \
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--base "core/${version}" \
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--head "${branch}" \
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--title "[backport ${version}] ${PR_TITLE}" \
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--body "Backport of #${PR_NUMBER} to \`core/${version}\`"$'\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 ${version}: ${PR_URL}"
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# Still try to comment on the original PR about the failure
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gh pr comment "${PR_NUMBER}" --body "@${PR_AUTHOR} Backport branch created but PR creation failed for \`core/${version}\`. 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: failure() && steps.backport.outputs.failed
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env:
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GH_TOKEN: ${{ github.token }}
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run: |
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PR_NUMBER="${{ 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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for failure in ${{ steps.backport.outputs.failed }}; do
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IFS=':' read -r version reason conflicts <<< "${failure}"
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if [ "${reason}" = "branch-missing" ]; then
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gh pr comment "${PR_NUMBER}" --body "@${PR_AUTHOR} Backport failed: Branch \`core/${version}\` 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 \`core/${version}\` failed: Merge conflicts detected."$'\n\n'"Please manually cherry-pick commit \`${MERGE_COMMIT}\` to the \`core/${version}\` 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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