From 72d3d37231e922a6fa9afca16e08fa45842d5eb4 Mon Sep 17 00:00:00 2001
From: JustVugg <JustVugg@users.noreply.github.com>
Date: Thu, 16 Jul 2026 19:39:40 +0200
Subject: [PATCH] ci: run the checks on main too (#144)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

@ZacharyZcR's workflow, already green on dev (78c77bf): engine + C suite,
web build + vitest, python suite, and a real CUDA syntax check.

Only the workflow file is cherry-picked here — main's engine code stays at
54cfe56 and nothing else from dev comes along. main is where the checks are
worth the most and where they were missing entirely.

Includes the two fixes the first run exposed: the pinned action's version
table stops at 12.6.2 (12.6.3 failed the install), and `nvcc ... | head -40`
took its exit status from head, so the job could never fail.

Co-Authored-By: ZacharyZcR <#144>

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---
 .github/workflows/ci.yml | 72 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 .github/workflows/ci.yml

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..e18f1b3
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,72 @@
+name: CI
+
+on:
+  pull_request:
+    branches: [dev, main]
+  push:
+    branches: [dev, main]
+
+jobs:
+  engine:
+    name: Engine (Linux, CPU)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Build glm
+        run: cd c && make glm
+      - name: C test suite
+        run: cd c && make test-c
+
+  engine-cuda-syntax:
+    name: CUDA syntax check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install CUDA toolkit (compiler only)
+        uses: Jimver/cuda-toolkit@v0.2.19
+        with:
+          # v0.2.19's version table stops at 12.6.2 — 12.6.3 fails the install
+          # step with "Version not available" before nvcc is ever reached.
+          cuda: '12.6.2'
+          method: network
+          sub-packages: '["nvcc"]'
+      - name: Compile backend_cuda.cu (syntax only, no GPU)
+        run: |
+          cd c
+          # NOT `nvcc ... | head -40`: a pipeline exits with the status of its
+          # LAST command, so head's 0 masked every nvcc error and the job could
+          # only ever be green. A check that cannot fail is worse than no check —
+          # it buys false confidence in the one file nothing else compiles.
+          nvcc -O2 -std=c++17 -arch=sm_80 -c backend_cuda.cu -o /dev/null \
+            -Xcompiler=-Wall,-Wextra
+          echo "CUDA syntax check passed"
+
+  web:
+    name: Web UI
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: web
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+          cache: npm
+          cache-dependency-path: web/package-lock.json
+      - run: npm ci
+      - name: Build
+        run: npm run build
+      - name: Test
+        run: npx vitest run
+
+  python:
+    name: Python tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+      - name: Python test suite
+        run: cd c && python3 -m unittest discover -s tests -p 'test_*.py'