From c2f1091d7ce3e35a0c711739a6b2969be5f5d48d Mon Sep 17 00:00:00 2001
From: Aaron Jomy <aaronjomyjoseph@gmail.com>
Date: Tue, 18 Aug 2026 21:37:14 +0200
Subject: [PATCH 1/2] [ci] Add clang-format and ruff lint jobs

---
 .github/workflows/lint.yml | 49 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 .github/workflows/lint.yml

diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
new file mode 100644
index 0000000..a0a1fcd
--- /dev/null
+++ b/.github/workflows/lint.yml
@@ -0,0 +1,49 @@
+name: Lint
+
+on:
+  workflow_dispatch:
+  pull_request:
+    paths:
+      - '**.h'
+      - '**.cxx'
+      - '**.py'
+      - 'pyproject.toml'
+      - '.github/workflows/lint.yml'
+
+permissions:
+  contents: read
+
+concurrency:
+  group: lint-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  clang-format:
+    name: clang-format
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+
+      # The whole tree is formatted, so check it whole: no diff-vs-base
+      # machinery, and drift cannot accumulate in untouched files.
+      - name: Check C++ formatting
+        run: |
+          sudo apt-get install -y clang-format-18
+          find src test/cpp -name '*.cxx' -o -name '*.h' \
+            | xargs clang-format-18 --dry-run -Werror
+
+  ruff:
+    name: ruff
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+
+      - name: Check python lint and formatting
+        run: |
+          pip install ruff==0.16.3
+          ruff check .
+          ruff format --check .

From b2ab24ae9d69c8c3532eeb8dae3df4da10fba5c5 Mon Sep 17 00:00:00 2001
From: Aaron Jomy <aaronjomyjoseph@gmail.com>
Date: Wed, 19 Aug 2026 07:56:41 +0200
Subject: [PATCH 2/2] [ci] Update GitHub Actions to their latest versions

---
 .github/workflows/ci.yml      | 4 ++--
 .github/workflows/lint.yml    | 6 +++---
 .github/workflows/nightly.yml | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cd11833..83676ee 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -54,11 +54,11 @@ jobs:
       contents: read
       pull-requests: write
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v8
         with:
           pattern: result-*
 
-      - uses: actions/github-script@v7
+      - uses: actions/github-script@v9
         with:
           script: |
             const fs = require('fs');
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index a0a1fcd..ac99203 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -22,7 +22,7 @@ jobs:
     name: clang-format
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       # The whole tree is formatted, so check it whole: no diff-vs-base
       # machinery, and drift cannot accumulate in untouched files.
@@ -36,9 +36,9 @@ jobs:
     name: ruff
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v7
         with:
           python-version: '3.12'
 
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index a452156..75cd1ef 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -63,7 +63,7 @@ jobs:
       contents: read
       issues: write
     steps:
-      - uses: actions/github-script@v7
+      - uses: actions/github-script@v9
         with:
           script: |
             const marker = '<!-- cppjit-nightly-drift -->';