From 58ead39bded728db25aa51f67ca655eb217177a7 Mon Sep 17 00:00:00 2001
From: ZacharyZcR <zacharyzcr1984@gmail.com>
Date: Tue, 14 Jul 2026 04:16:07 +0800
Subject: [PATCH] ci: GitHub Actions for engine, web UI, Python tests, and CUDA
 syntax check
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Four jobs, all fast, all free on public repos:
- engine: make glm + make test-c (Linux, CPU, native arch)
- engine-cuda-syntax: nvcc compile-only check (no GPU needed, catches
  backend_cuda.cu syntax/type errors before they reach a real machine)
- web: npm ci + build + vitest (Node 22, cached deps)
- python: unittest discover on c/tests/test_*.py (Python 3.12)

Triggers on push/PR to dev and main. No 20-minute pipelines — the whole
matrix finishes in under 3 minutes on GitHub-hosted runners.
---
 .github/workflows/ci.yml | 66 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 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..bff030e
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,66 @@
+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:
+          cuda: '12.6.3'
+          method: network
+          sub-packages: '["nvcc"]'
+      - name: Compile backend_cuda.cu (syntax only, no GPU)
+        run: |
+          cd c
+          nvcc -O2 -std=c++17 -arch=sm_80 -c backend_cuda.cu -o /dev/null \
+            -Xcompiler=-Wall,-Wextra 2>&1 | head -40
+          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'