ci: auto-skip internal CI changes in release notes

.github/release.yml

@@ -1,6 +1,7 @@
 # Configuration for GitHub's automatic release notes generation
-# PRs with 'skip-changelog' label will be excluded from release notes
+# Manual and automatically classified internal PRs are excluded.
 changelog:
   exclude:
     labels:
       - 'skip-changelog'
+      - 'skip-changelog-auto'

.github/scripts/classify-release-notes.mjs

@@ -0,0 +1,102 @@
+#!/usr/bin/env node
+
+import { execFileSync } from 'node:child_process';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const INTERNAL_LABELS = new Set([
+  'category/development',
+  'scope/build-system',
+  'scope/ci-cd',
+  'scope/github-actions',
+  'scope/testing',
+]);
+const AUTO_LABEL = 'skip-changelog-auto';
+const RELEASE_AUTOMATION_RE =
+  /^\.github\/.*(?:changelog|release|publish|deploy|sync|prebuild|package|installer|artifact|image|cd-)/i;
+const TEST_FILE_RE =
+  /(?:^|\/)(?:__tests__\/|[^/]+\.(?:test|spec)\.[^/]+$|(?:vitest|playwright)(?:\.[^/]+)?\.config\.[^/]+$)/;
+
+export function shouldAutoSkipChangelog({ title, labels = [], files = [] }) {
+  const names = labels
+    .map((label) =>
+      (typeof label === 'string' ? label : label.name).toLowerCase(),
+    )
+    .filter((name) => name !== AUTO_LABEL);
+  if (names.includes('skip-changelog')) return false;
+
+  const subject = /^(\w+)(?:\([^)]*\))?(!)?:/.exec(title.trim());
+  const type = subject?.[1].toLowerCase();
+  if (
+    subject?.[2] ||
+    (type
+      ? type !== 'ci'
+      : !names.some((label) =>
+          ['scope/ci-cd', 'scope/github-actions'].includes(label),
+        )) ||
+    names.includes('bug') ||
+    names.includes('breaking-change') ||
+    names.some(
+      (label) =>
+        /^(?:type|category|scope)\//.test(label) && !INTERNAL_LABELS.has(label),
+    )
+  ) {
+    return false;
+  }
+
+  return (
+    files.length > 0 &&
+    files.every(
+      (file) =>
+        TEST_FILE_RE.test(file) ||
+        (!RELEASE_AUTOMATION_RE.test(file) &&
+          (file.startsWith('.github/') || file.startsWith('.qwen/'))),
+    )
+  );
+}
+
+function main() {
+  const repo = process.env.GITHUB_REPOSITORY || '';
+  const number = process.env.PR_NUMBER || '';
+  if (
+    !/^[A-Za-z0-9_.-]+\/[A-Za-z0-9_.-]+$/.test(repo) ||
+    !/^[1-9]\d*$/.test(number)
+  ) {
+    throw new Error(
+      'GITHUB_REPOSITORY and PR_NUMBER must identify a pull request.',
+    );
+  }
+
+  const metadata = JSON.parse(
+    execFileSync(
+      'gh',
+      ['pr', 'view', number, '--repo', repo, '--json', 'title,labels'],
+      {
+        encoding: 'utf8',
+      },
+    ),
+  );
+  const files = execFileSync(
+    'gh',
+    [
+      'api',
+      '--paginate',
+      `repos/${repo}/pulls/${number}/files`,
+      '--jq',
+      '.[] | .filename, (.previous_filename // empty)',
+    ],
+    { encoding: 'utf8', maxBuffer: 16 * 1024 * 1024 },
+  )
+    .split(/\r?\n/)
+    .filter(Boolean);
+  process.stdout.write(
+    `${shouldAutoSkipChangelog({ ...metadata, files }) ? 'skip' : 'include'}\n`,
+  );
+}
+
+if (
+  process.argv[1] &&
+  path.resolve(process.argv[1]) === fileURLToPath(import.meta.url)
+) {
+  main();
+}