Use nix

Author: dmjio

.github/workflows/ci.yml

@@ -17,8 +17,22 @@ jobs:
       AF_PREFIX: "/usr/local"
 
     steps:
+      - uses: cachix/install-nix-action@v31
+        with:
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Cancel Previous Runs
+        uses: styfle/cancel-workflow-action@0.9.1
+        with:
+          access_token: ${{ github.token }}
       - uses: actions/checkout@v4
 
+      - name: Nix channel update
+        run: nix-channel --update
+
+      - name: Cabal install
+        run: nix-env -iA pkgs.cabal-install -f .
+
       - name: Install ArrayFire prerequisites
         run: |
           sudo apt-get update
@@ -30,28 +44,11 @@ jobs:
           chmod +x "$AF_INSTALLER"
           sudo "./$AF_INSTALLER" --exclude-subdir --prefix="$AF_PREFIX"
 
-      - name: Set up Haskell
-        uses: haskell-actions/setup@v2
-        with:
-          ghc-version: "9.12"
-          cabal-version: "latest"
-
-      - name: Cache cabal store
-        uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cabal/packages
-            ~/.cabal/store
-            dist-newstyle
-          key: ${{ runner.os }}-cabal-${{ hashFiles('**/*.cabal', '**/cabal.project') }}
-          restore-keys: |
-            ${{ runner.os }}-cabal-
-
       - name: Update cabal package list
         run: cabal update
 
       - name: Build
-        run: cabal build all
+        run: nix-shell -p ghc --run 'cabal build'
         env:
           PATH: "/usr/local/bin:${{ env.PATH }}"
           LD_LIBRARY_PATH: "/usr/local/lib"