From a9ac2755886299eb200e9725c6412f7bfca83246 Mon Sep 17 00:00:00 2001
From: Guillaume Ballet <3272758+gballet@users.noreply.github.com>
Date: Mon, 25 Aug 2025 11:02:33 +0200
Subject: [PATCH] .github/workflows: naive PR format checker (#32480)

Full disclosure: this has been generated by AI. The goal is to have a
quick check that the PR format is correct, before we merge it. This is
to avoid the periodical case when someone forgets to add a milestone or
check the title matches our preferred format.
---
 .github/workflows/validate_pr.yml | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 .github/workflows/validate_pr.yml

diff --git a/.github/workflows/validate_pr.yml b/.github/workflows/validate_pr.yml
new file mode 100644
index 0000000000..8c9ae1688f
--- /dev/null
+++ b/.github/workflows/validate_pr.yml
@@ -0,0 +1,23 @@
+name: PR Format Validation
+
+on:
+  pull_request:
+    types: [opened, edited, synchronize]
+
+jobs:
+  validate-pr:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check PR Title Format
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const prTitle = context.payload.pull_request.title;
+            const titleRegex = /^(\.?[\w\s,{}/]+): .+/;
+            
+            if (!titleRegex.test(prTitle)) {
+              core.setFailed(`PR title "${prTitle}" does not match required format: directory, ...: description`);
+              return;
+            }
+            
+            console.log('✅ PR title format is valid');