Add CI

Author: aciceri

.github/workflows/nix.yml

@@ -0,0 +1,41 @@
+name: Nix Flake actions
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+jobs:
+  nix-matrix:
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.set-matrix.outputs.matrix }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: DeterminateSystems/nix-installer-action@main
+        with:
+          extra-conf: |
+            experimental-features = nix-command flakes pipe-operators
+      - uses: DeterminateSystems/magic-nix-cache-action@main
+      - id: set-matrix
+        name: Generate Nix Matrix
+        run: |
+          set -Eeu
+          matrix="$(nix eval --json '.#githubActions.matrix')"
+          echo "matrix=$matrix" >> "$GITHUB_OUTPUT"
+
+  nix-build:
+    name: ${{ matrix.name }} (${{ matrix.system }})
+    needs: nix-matrix
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix: ${{fromJSON(needs.nix-matrix.outputs.matrix)}}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: DeterminateSystems/nix-installer-action@main
+        with:
+          extra-conf: |
+            experimental-features = nix-command flakes pipe-operators
+      - uses: DeterminateSystems/magic-nix-cache-action@main
+      - run: nix build -L '.#${{ matrix.attr }}'

ci.nix

@@ -0,0 +1,11 @@
+{
+  inputs,
+  lib,
+  config,
+  ...
+}:
+{
+  flake.githubActions = inputs.nix-github-actions.lib.mkGithubMatrix {
+    checks = lib.getAttrs ["x86_64-linux"] config.flake.packages;
+  };
+}

flake.lock

@@ -46,6 +46,11 @@
       url = "github:nix-community/nixos-generators";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+
+    nix-github-actions = {
+      url = "github:nix-community/nix-github-actions";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs =