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cherry-pick-wp-release.yml
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name: Auto Cherry-Pick
on:
push:
branches:
- trunk
# We also want to attempt cherry-picking when a PR is labeled after the PR
# is merged.
pull_request:
types: [labeled]
branches:
- trunk
# Ensure that new jobs wait for the previous job to finish.
concurrency:
group: ${{ github.workflow }}
cancel-in-progress: false
jobs:
cherry-pick:
runs-on: ubuntu-latest
# When in the context of a PR, ensure the PR is merged.
if: github.event.pull_request == null || github.event.pull_request.merged == true
steps:
- name: Determine if label should trigger cherry-pick
id: label-check
uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
with:
script: |
const commit_sha = context.payload.pull_request ? context.payload.pull_request.merge_commit_sha : context.sha;
console.log(`Commit SHA: ${commit_sha}`);
core.exportVariable('commit_sha', commit_sha);
const prs = await github.rest.repos.listPullRequestsAssociatedWithCommit({
owner: context.repo.owner,
repo: context.repo.repo,
commit_sha,
});
if (prs.data.length === 0) {
console.log(`No PR found for commit ${context.sha}.`);
return;
}
const pr_number = prs.data[0].number;
console.log(`PR: ${pr_number}`);
core.exportVariable('pr_number', pr_number);
const pr = await github.rest.pulls.get({
owner: context.repo.owner,
repo: context.repo.repo,
pull_number: pr_number,
});
const labels = pr.data.labels.map(label => label.name);
console.log(`Labels: ${labels}`);
const regex = /^Backport to WP ([0-9]+\.[0-9]+) Beta\/RC$/;
let matched = false;
for (const label of labels) {
const match = label.match(regex);
if (match) {
const version = match[1];
console.log(`Matched label: ${label}`);
console.log(`Extracted version: ${version}`);
core.exportVariable('cherry_pick', 'true');
core.exportVariable('version', version);
matched = true;
break;
}
}
if (!matched) {
core.exportVariable('cherry_pick', 'false');
}
- name: Checkout repository
if: env.cherry_pick == 'true'
uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
with:
token: ${{ secrets.GUTENBERG_TOKEN }}
fetch-depth: 0
- name: Set up Git
if: env.cherry_pick == 'true'
run: |
git config --global user.name "Gutenberg Repository Automation"
git config --global user.email "gutenberg@wordpress.org"
- name: Cherry-pick the commit
id: cherry-pick
if: env.cherry_pick == 'true'
run: |
TARGET_BRANCH="wp/${{ env.version }}"
COMMIT_SHA="${{ env.commit_sha }}"
echo "Target branch: $TARGET_BRANCH"
echo "Commit SHA: $COMMIT_SHA"
git checkout $TARGET_BRANCH
git cherry-pick $COMMIT_SHA || echo "cherry-pick-failed" > result
if [ -f result ] && grep -q "cherry-pick-failed" result; then
echo "conflict=true" >> $GITHUB_ENV
git cherry-pick --abort
else
CHERRY_PICK_SHA=$(git rev-parse HEAD)
echo "conflict=false" >> $GITHUB_ENV
echo "cherry_pick_sha=$CHERRY_PICK_SHA" >> $GITHUB_ENV
git push origin $TARGET_BRANCH
fi
- name: Remove cherry-pick label
if: env.cherry_pick == 'true' && env.conflict == 'false'
uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
with:
script: |
const prNumber = process.env.pr_number;
const version = process.env.version;
console.log(`prNumber: ${prNumber}`);
console.log(`version: ${version}`);
const oldLabel = `Backport to WP ${version} Beta/RC`;
const newLabel = `Backported to WP Core`;
await github.rest.issues.removeLabel({
owner: context.repo.owner,
repo: context.repo.repo,
issue_number: prNumber,
name: oldLabel
});
await github.rest.issues.addLabels({
owner: context.repo.owner,
repo: context.repo.repo,
issue_number: prNumber,
labels: [newLabel]
});
- name: Comment on the PR
if: env.cherry_pick == 'true' && env.conflict == 'false'
uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
with:
script: |
const prNumber = process.env.pr_number;
const cherryPickSha = process.env.cherry_pick_sha;
const targetBranch = `wp/${process.env.version}`;
console.log(`prNumber: ${prNumber}`);
console.log(`cherryPickSha: ${cherryPickSha}`);
console.log(`targetBranch: ${targetBranch}`);
await github.rest.issues.createComment({
owner: context.repo.owner,
repo: context.repo.repo,
issue_number: prNumber,
body: `I just cherry-picked this PR to the ${targetBranch} branch to get it included in the next release: ${cherryPickSha}`
});
- name: Comment on the PR about conflict
if: env.cherry_pick == 'true' && env.conflict == 'true'
uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
with:
script: |
const prNumber = process.env.pr_number;
const commitSha = process.env.commit_sha;
const targetBranch = `wp/${process.env.version}`;
console.log(`prNumber: ${prNumber}`);
console.log(`targetBranch: ${targetBranch}`);
await github.rest.issues.createComment({
owner: context.repo.owner,
repo: context.repo.repo,
issue_number: prNumber,
body: `There was a conflict while trying to cherry-pick the commit to the ${targetBranch} branch. Please resolve the conflict manually and create a PR to the ${targetBranch} branch.
PRs to ${targetBranch} are similar to PRs to trunk, but you should base your PR on the ${targetBranch} branch instead of trunk.
\`\`\`
# Checkout the ${targetBranch} branch instead of trunk.
git checkout ${targetBranch}
# Create a new branch for your PR.
git checkout -b my-branch
# Cherry-pick the commit.
git cherry-pick ${commitSha}
# Check which files have conflicts.
git status
# Resolve the conflict...
# Add the resolved files to the staging area.
git status
git add .
git cherry-pick --continue
# Push the branch to the repository
git push origin my-branch
# Create a PR and set the base to the ${targetBranch} branch.
# See https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/changing-the-base-branch-of-a-pull-request.
\`\`\`
`
});