[llvm] [CI] Add Basic Bazel Checks (PR #153740)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-github-workflow

Author: Aiden Grossman (boomanaiden154)

<details>
<summary>Changes</summary>

Having basic checks (like running buildifier) on the upstream bazel files would be helpful for contributors maintaining the bazel build. Add basic checks (currently just buildifier) to a workflow that runs whenever the bazel build files change.

---
Full diff: https://github.com/llvm/llvm-project/pull/153740.diff


1 Files Affected:

- (added) .github/workflows/bazel-checks.yml (+32) 


``````````diff
diff --git a/.github/workflows/bazel-checks.yml b/.github/workflows/bazel-checks.yml
new file mode 100644
index 0000000000000..65d51649dd9e7
--- /dev/null
+++ b/.github/workflows/bazel-checks.yml
@@ -0,0 +1,32 @@
+name: Bazel Checks
+
+permissions:
+  contents: read
+
+on:
+  push:
+    paths:
+      - '.github/workflows/bazel-checks.yml'
+      - 'utils/bazel/**'
+    branches:
+      - main
+  pull_request:
+    paths:
+      - '.github/workflows/bazel-checks.yml'
+      - 'utils/bazel/**'
+
+jobs:
+  buildifier:
+    name: "Buildifier"
+    runs-on: ubuntu-24.04
+    if: github.repository == 'llvm/llvm-project'
+    steps:
+      - name: Fetch LLVM sources
+        uses: actions/checkout at 08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - name: Setup Buildifier
+        run: |
+          sudo curl -L https://github.com/bazelbuild/buildtools/releases/download/v8.2.1/buildifier-linux-amd64 -o /usr/bin/buildifier
+          sudo chmod +x /usr/bin/buildifier
+      - name: Run Buildifier
+        run: |
+          buildifier --mode=check $(find ./utils/bazel -name *BUILD*)

``````````

</details>


https://github.com/llvm/llvm-project/pull/153740