Add a CI workflow

1 file changed, 106 insertions, 0 deletions

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..794f0b0
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,106 @@
+name: ci
+
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+
+concurrency:
+  group: ci-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-24.04
+    strategy:
+      fail-fast: false
+      matrix:
+        cc: [gcc, clang]
+    steps:
+      - uses: actions/checkout@v7
+        with:
+          submodules: recursive
+      - name: Install build dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential clang zlib1g-dev gettext libtool
+      # CC is passed on the command line because git's Makefile hard-assigns
+      # CC = cc, which would override it as an environment variable.
+      - name: Build
+        run: make NO_LUA=1 CC=${{ matrix.cc }}
+      - name: Run the test suite
+        # The submodule is pinned by SHA without its release tag, so skip the
+        # test that runs `git describe` inside it.
+        run: make NO_LUA=1 CC=${{ matrix.cc }} test
+        env:
+          CGIT_TEST_NO_GIT_VERSION: YesPlease
+
+  lua:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v7
+        with:
+          submodules: recursive
+      - name: Install build dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential zlib1g-dev gettext libtool libluajit-5.1-dev
+      # A plain build auto-detects luajit and links the lua: filter backend.
+      - name: Build with Lua
+        run: make
+      - name: Confirm Lua is compiled in
+        run: ./build/cgit --version | grep -F '[+] Lua scripting'
+      - name: Run the test suite
+        run: make test
+        env:
+          CGIT_TEST_NO_GIT_VERSION: YesPlease
+
+  sanitizers:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v7
+        with:
+          submodules: recursive
+      - name: Install build dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential zlib1g-dev gettext libtool
+      # Runs the test suite against a cgit built with AddressSanitizer and
+      # UndefinedBehaviorSanitizer. Leak detection is off because cgit is a
+      # short-lived CGI that leaves cleanup to process exit.
+      - name: Run the test suite under ASan and UBSan
+        run: make NO_LUA=1 SANITIZE=address,undefined test
+        env:
+          CGIT_TEST_NO_GIT_VERSION: YesPlease
+          ASAN_OPTIONS: abort_on_error=1:detect_leaks=0
+          UBSAN_OPTIONS: print_stacktrace=1:halt_on_error=1
+
+  sparse:
+    runs-on: ubuntu-24.04
+    # Static analysis. Non-blocking, since sparse is noisy on a large codebase.
+    continue-on-error: true
+    steps:
+      - uses: actions/checkout@v7
+        with:
+          submodules: recursive
+      - name: Install build dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential zlib1g-dev gettext libtool sparse
+      - name: Static-check the cgit sources with sparse
+        run: make NO_LUA=1 sparse
+
+  hardened-build:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v7
+        with:
+          submodules: recursive
+      - name: Install build dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential zlib1g-dev gettext libtool
+      - name: Build with release hardening flags
+        run: ./tools/release-build.sh
+      - name: Confirm the binary is position independent
+        run: file build/cgit | grep -q 'pie executable'