Merge pull request #81 from AcademySoftwareFoundation/cachix-ci

Start using Nix for consistency on CI

Author: joshbainbridge

.github/workflows/ci-pipeline.yml

@@ -12,35 +12,27 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v6
-        with:
-          python-version: '3.13'
-      - run: pip install ruff==0.14.1
-      - run: pip install ty==0.0.1a23
-      - run: scripts/check-format.sh
+      - uses: cachix/install-nix-action@v25
+      - run: nix develop -ic scripts/check-format.sh
 
   check-static-analyzer:
     name: Check static analysis
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v6
-        with:
-          python-version: '3.13'
-      - run: pip install ruff==0.14.1
-      - run: pip install ty==0.0.1a23
-      - run: cmake --preset unix
-      - run: scripts/check-lint.sh
+      - uses: cachix/install-nix-action@v25
+      - run: nix develop -ic cmake --preset unix
+      - run: nix develop -ic scripts/check-lint.sh
 
   check-documentation:
     name: Check documentation
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v25
       - run: curl -L -O https://raw.githubusercontent.com/jothepro/doxygen-awesome-css/v2.4.0/doxygen-awesome.css
       - run: curl -L -O https://raw.githubusercontent.com/jothepro/doxygen-awesome-css/v2.4.0/doxygen-awesome-sidebar-only.css
-      - run: sudo apt-get update && sudo apt-get install doxygen graphviz
-      - run: scripts/check-documentation.sh
+      - run: nix develop -ic scripts/check-documentation.sh
 
   install:
     name: Install library

flake.nix

@@ -26,7 +26,7 @@
         } {
           name = "devshell";
           packages = [
-            pkgs.llvmPackages_18.clang-tools # matching version on GitHub runner
+            pkgs.clang-tools
             pkgs.cmakeCurses
             pkgs.ninja
             pkgs.just

src/tools/lib/optimise.cpp

@@ -908,7 +908,7 @@ struct Pmj
 {
 	OQMC_HOST_DEVICE static void* initialiseCache()
 	{
-		std::uint32_t(*samples)[4];
+		std::uint32_t (*samples)[4];
 		OQMC_ALLOCATE(&samples, oqmc::State64Bit::maxIndexSize);
 
 		oqmc::stochasticPmjInit(oqmc::State64Bit::maxIndexSize, samples);
@@ -924,7 +924,7 @@ struct Pmj
 	OQMC_HOST_DEVICE static void sample(int index, std::uint32_t hash,
 	                                    const void* cache, std::uint32_t out[2])
 	{
-		auto samples = static_cast<const std::uint32_t(*)[4]>(cache);
+		auto samples = static_cast<const std::uint32_t (*)[4]>(cache);
 		oqmc::shuffledScrambledLookup<4, 2>(index, hash, samples, out);
 	}
 };