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ci(apollo-vertex): add PR size labeling workflow
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‎.github/workflows/apollo-vertex-pr-size.yml‎

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name: Apollo Vertex PR Size
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on:
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pull_request:
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types:
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- opened
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- reopened
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- synchronize
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- ready_for_review
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- converted_to_draft
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branches: [main]
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paths:
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- "apps/apollo-vertex/**"
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permissions:
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contents: read
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pull-requests: read
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jobs:
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prepare-config:
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name: Prepare PR size config
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runs-on: ubuntu-24.04
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outputs:
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labels_json: ${{ steps.config.outputs.labels_json }}
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vertex_only: ${{ steps.scope.outputs.vertex_only }}
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steps:
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- name: Check for changes outside apollo-vertex
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id: scope
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env:
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GH_TOKEN: ${{ github.token }}
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GH_REPO: ${{ github.repository }}
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PR_URL: ${{ github.event.pull_request.html_url }}
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run: |
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FILES_OUTSIDE=$(gh pr diff "$PR_URL" --name-only | grep -v '^apps/apollo-vertex/' || true)
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if [ -n "$FILES_OUTSIDE" ]; then
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echo "vertex_only=false" >> "$GITHUB_OUTPUT"
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echo "Skipping PR size labeling — PR touches files outside apps/apollo-vertex/:"
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echo "$FILES_OUTSIDE"
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else
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echo "vertex_only=true" >> "$GITHUB_OUTPUT"
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fi
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- id: config
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name: Build PR size label config
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uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
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with:
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result-encoding: string
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script: |
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const managedLabels = [
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{ name: "size:XS", color: "0e8a16", description: "0-9 changed lines." },
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{ name: "size:S", color: "5ebd3e", description: "10-29 changed lines." },
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{ name: "size:M", color: "fbca04", description: "30-99 changed lines." },
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{ name: "size:L", color: "fe7d37", description: "100-499 changed lines." },
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{ name: "size:XL", color: "d93f0b", description: "500-999 changed lines." },
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{ name: "size:XXL", color: "b60205", description: "1,000+ changed lines." },
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];
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core.setOutput("labels_json", JSON.stringify(managedLabels));
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sync-label-definitions:
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name: Sync PR size label definitions
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needs: prepare-config
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if: needs.prepare-config.outputs.vertex_only == 'true'
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runs-on: ubuntu-24.04
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permissions:
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contents: read
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issues: write
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steps:
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- name: Ensure PR size labels exist
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uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
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env:
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PR_SIZE_LABELS_JSON: ${{ needs.prepare-config.outputs.labels_json }}
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with:
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script: |
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const managedLabels = JSON.parse(process.env.PR_SIZE_LABELS_JSON ?? "[]");
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for (const label of managedLabels) {
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try {
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const { data: existing } = await github.rest.issues.getLabel({
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owner: context.repo.owner,
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repo: context.repo.repo,
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name: label.name,
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});
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if (
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existing.color !== label.color ||
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(existing.description ?? "") !== label.description
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) {
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await github.rest.issues.updateLabel({
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owner: context.repo.owner,
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repo: context.repo.repo,
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name: label.name,
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color: label.color,
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description: label.description,
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});
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}
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} catch (error) {
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if (error.status !== 404) {
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throw error;
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}
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try {
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await github.rest.issues.createLabel({
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owner: context.repo.owner,
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repo: context.repo.repo,
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name: label.name,
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color: label.color,
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description: label.description,
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});
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} catch (createError) {
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if (createError.status !== 422) {
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throw createError;
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}
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}
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}
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}
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label:
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name: Label PR size
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needs: [prepare-config, sync-label-definitions]
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if: needs.prepare-config.outputs.vertex_only == 'true'
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runs-on: ubuntu-24.04
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permissions:
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contents: read
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issues: write
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concurrency:
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group: pr-size-${{ github.event.pull_request.number }}
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cancel-in-progress: true
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steps:
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- name: Sync PR size label
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uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
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env:
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PR_SIZE_LABELS_JSON: ${{ needs.prepare-config.outputs.labels_json }}
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with:
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script: |
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const issueNumber = context.payload.pull_request.number;
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const additions = context.payload.pull_request.additions ?? 0;
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const deletions = context.payload.pull_request.deletions ?? 0;
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const changedLines = additions + deletions;
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const managedLabels = JSON.parse(process.env.PR_SIZE_LABELS_JSON ?? "[]");
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const managedLabelNames = new Set(managedLabels.map((label) => label.name));
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const resolveSizeLabel = (totalChangedLines) => {
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if (totalChangedLines < 10) {
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return "size:XS";
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}
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if (totalChangedLines < 30) {
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return "size:S";
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}
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if (totalChangedLines < 100) {
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return "size:M";
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}
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if (totalChangedLines < 500) {
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return "size:L";
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}
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if (totalChangedLines < 1000) {
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return "size:XL";
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}
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return "size:XXL";
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};
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const nextLabelName = resolveSizeLabel(changedLines);
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const { data: currentLabels } = await github.rest.issues.listLabelsOnIssue({
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owner: context.repo.owner,
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repo: context.repo.repo,
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issue_number: issueNumber,
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per_page: 100,
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});
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for (const label of currentLabels) {
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if (!managedLabelNames.has(label.name) || label.name === nextLabelName) {
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continue;
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}
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try {
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await github.rest.issues.removeLabel({
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owner: context.repo.owner,
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repo: context.repo.repo,
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issue_number: issueNumber,
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name: label.name,
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});
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} catch (removeError) {
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if (removeError.status !== 404) {
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throw removeError;
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}
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}
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}
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if (!currentLabels.some((label) => label.name === nextLabelName)) {
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await github.rest.issues.addLabels({
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owner: context.repo.owner,
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repo: context.repo.repo,
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issue_number: issueNumber,
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labels: [nextLabelName],
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});
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}
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core.info(`PR #${issueNumber}: ${changedLines} changed lines -> ${nextLabelName}`);

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