chore: import upstream snapshot with attribution

2026-07-13 11:58:09 +08:00
commit c48e26cdd0
2909 changed files with 1591131 additions and 0 deletions
@@ -0,0 +1,120 @@
+/**
+ * @license
+ * Copyright 2026 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * @license
+ */
+
+import { GITHUB_OWNER, GITHUB_REPO } from '../types.js';
+import { execSync } from 'node:child_process';
+
+try {
+  const query = `
+  query($owner: String!, $repo: String!) {
+    repository(owner: $owner, name: $repo) {
+      pullRequests(last: 100, states: MERGED) {
+        nodes {
+          authorAssociation
+          mergedAt
+        }
+      }
+      issues(last: 100, states: CLOSED) {
+        nodes {
+          authorAssociation
+          closedAt
+        }
+      }
+    }
+  }
+  `;
+  const output = execSync(
+    `gh api graphql -F owner=${GITHUB_OWNER} -F repo=${GITHUB_REPO} -f query='${query}'`,
+    { encoding: 'utf-8' },
+  );
+  const data = JSON.parse(output).data.repository;
+
+  const prs = data.pullRequests.nodes
+    .map((p: { authorAssociation: string; mergedAt: string }) => ({
+      association: p.authorAssociation,
+      date: new Date(p.mergedAt).getTime(),
+    }))
+    .sort((a: { date: number }, b: { date: number }) => a.date - b.date);
+
+  const issues = data.issues.nodes
+    .map((i: { authorAssociation: string; closedAt: string }) => ({
+      association: i.authorAssociation,
+      date: new Date(i.closedAt).getTime(),
+    }))
+    .sort((a: { date: number }, b: { date: number }) => a.date - b.date);
+
+  const isMaintainer = (assoc: string) =>
+    ['MEMBER', 'OWNER', 'COLLABORATOR'].includes(assoc);
+
+  const calculateThroughput = (
+    items: { association: string; date: number }[],
+  ) => {
+    if (items.length < 2) return 0;
+    const first = items[0].date;
+    const last = items[items.length - 1].date;
+    const days = (last - first) / (1000 * 60 * 60 * 24);
+    return days > 0 ? items.length / days : items.length; // items per day
+  };
+
+  const prOverall = calculateThroughput(prs);
+  const prMaintainers = calculateThroughput(
+    prs.filter((i: { association: string; date: number }) =>
+      isMaintainer(i.association),
+    ),
+  );
+  const prCommunity = calculateThroughput(
+    prs.filter(
+      (i: { association: string; date: number }) =>
+        !isMaintainer(i.association),
+    ),
+  );
+
+  const issueOverall = calculateThroughput(issues);
+  const issueMaintainers = calculateThroughput(
+    issues.filter((i: { association: string; date: number }) =>
+      isMaintainer(i.association),
+    ),
+  );
+  const issueCommunity = calculateThroughput(
+    issues.filter(
+      (i: { association: string; date: number }) =>
+        !isMaintainer(i.association),
+    ),
+  );
+
+  process.stdout.write(
+    `throughput_pr_overall_per_day,${Math.round(prOverall * 100) / 100}\n`,
+  );
+  process.stdout.write(
+    `throughput_pr_maintainers_per_day,${Math.round(prMaintainers * 100) / 100}\n`,
+  );
+  process.stdout.write(
+    `throughput_pr_community_per_day,${Math.round(prCommunity * 100) / 100}\n`,
+  );
+  process.stdout.write(
+    `throughput_issue_overall_per_day,${Math.round(issueOverall * 100) / 100}\n`,
+  );
+  process.stdout.write(
+    `throughput_issue_maintainers_per_day,${Math.round(issueMaintainers * 100) / 100}\n`,
+  );
+  process.stdout.write(
+    `throughput_issue_community_per_day,${Math.round(issueCommunity * 100) / 100}\n`,
+  );
+  process.stdout.write(
+    `throughput_issue_overall_days_per_issue,${issueOverall > 0 ? Math.round((1 / issueOverall) * 100) / 100 : 0}\n`,
+  );
+  process.stdout.write(
+    `throughput_issue_maintainers_days_per_issue,${issueMaintainers > 0 ? Math.round((1 / issueMaintainers) * 100) / 100 : 0}\n`,
+  );
+  process.stdout.write(
+    `throughput_issue_community_days_per_issue,${issueCommunity > 0 ? Math.round((1 / issueCommunity) * 100) / 100 : 0}\n`,
+  );
+} catch (err) {
+  process.stderr.write(err instanceof Error ? err.message : String(err));
+  process.exit(1);
+}