From cd1e4bc7581151280dfe158a0a6b5ad489e3b544 Mon Sep 17 00:00:00 2001
From: "Marcelo E. Magallon" <marcelo.magallon@grafana.com>
Date: Tue, 14 May 2024 11:27:15 -0600
Subject: [PATCH] Add Github action to validate generated files

This is a quick Github action that tries to generate files when their
sources change and fails if the corresponding generated files are not
updated.

Signed-off-by: Marcelo E. Magallon <marcelo.magallon@grafana.com>
---
 .github/workflows/bad-pr.yml | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 .github/workflows/bad-pr.yml

diff --git a/.github/workflows/bad-pr.yml b/.github/workflows/bad-pr.yml
new file mode 100644
index 0000000..69278a1
--- /dev/null
+++ b/.github/workflows/bad-pr.yml
@@ -0,0 +1,25 @@
+name: "Verify generated files"
+
+on:
+  pull_request:
+    branches:
+      - main
+    paths:
+      - versions.yaml
+      - Dockerfile.tmpl
+
+  workflow_dispatch:
+
+jobs:
+  validate:
+    name: Validate pull request
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Verify generated files
+        run: |
+          # Generate Dockerfile
+          make Dockerfile
+          # Check if the generated Dockerfile is different from the one in the repository
+          git diff --no-ext-diff --quiet