ci: skip test for invalid PRs (#2013)

.github/workflows/ci.yml

@@ -1,4 +1,5 @@
 name: "CI"
+
 on:
   push:
     branches:
@@ -11,7 +12,7 @@ on:
       - "docs/**"
       - "README.md"
       - "LICENSE"
-  pull_request:
+  workflow_call:
 
 jobs:
   build:
@@ -43,3 +44,7 @@ jobs:
 
       - name: Test Site
         run: bash tools/test.sh
+
+  check-commit:
+    needs: build
+    uses: ./.github/workflows/commitlint.yml

.github/workflows/commitlint.yml

@@ -1,5 +1,6 @@
 name: Lint Commit Messages
-on: pull_request
+
+on: workflow_call
 
 jobs:
   commitlint:

.github/workflows/pr-filter.yml

@@ -1,22 +1,33 @@
-name: Block Invalid PR
+name: PR Filter
 
 on:
   pull_request_target:
-    types: [opened, reopened, edited]
+    types: [opened, reopened]
 
 jobs:
   check-template:
     runs-on: ubuntu-latest
     permissions:
       pull-requests: write
+
     steps:
       - name: Checkout Code
         uses: actions/checkout@v4
 
       - name: Check PR Content
+        id: intercept
         uses: actions/github-script@v7
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
+          result-encoding: string
           script: |
             const script = require('.github/workflows/scripts/pr-filter.js');
-            await script({ github, context });
+            return await script({ github, context });
+
+      - name: Abort due to invalid PR
+        if: ${{ steps.intercept.outputs.result != 'true' }}
+        run: exit 1
+
+  test:
+    needs: check-template
+    uses: ./.github/workflows/ci.yml

.github/workflows/scripts/pr-filter.js

@@ -1,30 +1,25 @@
-function noTypes(markdown) {
-  if (/## Type of change/.test(markdown) && /- \[x\]/i.test(markdown)) {
-    return false;
-  }
-  return true;
+function hasTypes(markdown) {
+  return /## Type of change/.test(markdown) && /-\s*\[x\]/i.test(markdown);
 }
 
-function noDescription(markdown) {
+function hasDescription(markdown) {
   return (
-    /## Description/.test(markdown) === false ||
-    /## Description\s*\n\s*## \w+/.test(markdown) ||
-    /## Description\s*\n\s*$/.test(markdown)
+    /## Description/.test(markdown) &&
+    !/## Description\s*\n\s*(##|\s*$)/.test(markdown)
   );
 }
 
 module.exports = async ({ github, context }) => {
   const pr = context.payload.pull_request;
-
-  if (pr.labels.length > 0) {
-    // Skip if the PR is already labeled (typically created by a deps-bot.)
-    return;
-  }
-
   const body = pr.body === null ? '' : pr.body.trim();
   const markdown = body.replace(/<!--[\s\S]*?-->/g, '');
+  const action = context.payload.action;
+
+  const isValid =
+    pr.labels.length > 0 || // PR create by Dependabot would have labels
+    (markdown !== '' && hasTypes(markdown) && hasDescription(markdown));
 
-  if (body === '' || noTypes(markdown) || noDescription(markdown)) {
+  if (!isValid) {
     await github.rest.pulls.update({
       ...context.repo,
       pull_number: pr.number,
@@ -34,7 +29,9 @@ module.exports = async ({ github, context }) => {
     await github.rest.issues.createComment({
       ...context.repo,
       issue_number: pr.number,
-      body: "Oops, it seems you've submitted an invalid pull request. No worries, we'll close it for you."
+      body: `Oops, it seems you've ${action} an invalid pull request. No worries, we'll close it for you.`
     });
   }
+
+  return isValid;
 };