Merge pull request #101 from django/add-pr-min-age-workflow

Add PR minimum age workflow

Author: dryan

.github/workflows/pr-min-age.yml

@@ -0,0 +1,60 @@
+name: PR Minimum Age
+
+on:
+  pull_request:
+    types: [opened, reopened, labeled, unlabeled, synchronize]
+  schedule:
+    - cron: "0 0 * * *"
+
+jobs:
+  check-pr-age:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: read
+      statuses: write
+    steps:
+      - name: Check PR age
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const BYPASS_LABEL = 'expedited';
+            const MIN_DAYS = 30;
+
+            let prs;
+
+            if (context.eventName === 'schedule') {
+              const { data } = await github.rest.pulls.list({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                state: 'open',
+              });
+              prs = data;
+            } else {
+              const { data } = await github.rest.pulls.get({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                pull_number: context.payload.pull_request.number,
+              });
+              prs = [data];
+            }
+
+            for (const pr of prs) {
+              const hasBypass = pr.labels.some(l => l.name === BYPASS_LABEL);
+              const ageMs = Date.now() - new Date(pr.created_at).getTime();
+              const ageDays = ageMs / (1000 * 60 * 60 * 24);
+              const state = hasBypass || ageDays >= MIN_DAYS ? 'success' : 'pending';
+              const description = hasBypass
+                ? `Bypassed via "${BYPASS_LABEL}" label`
+                : ageDays >= MIN_DAYS
+                  ? `PR has been open for ${Math.floor(ageDays)} days`
+                  : `PR must be open for at least ${MIN_DAYS} days (${Math.floor(MIN_DAYS - ageDays)} days remaining)`;
+
+              await github.rest.repos.createCommitStatus({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                sha: pr.head.sha,
+                state,
+                description,
+                context: 'PR Minimum Age',
+              });
+            }