setup nix flake check to run before build

.github/workflows/checks.yml

@@ -0,0 +1,50 @@
+name: Run Nix Flake Checks
+
+on:
+  workflow_dispatch:
+    inputs:
+      lockFile:
+        description: 'flake.lock file'
+        type: string
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ inputs.host }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      # The default disk size of these runners is ~14GB
+      # Cleanup the disk, see upstream discussion https://github.com/actions/runner-images/issues/2840.
+      - name: Cleanup Disk Space
+        run: |
+          echo "Before removing files:"
+          df -h
+          sudo rm -rf /usr/share/dotnet
+          sudo rm -rf /opt/ghc
+          sudo rm -rf /opt
+          sudo rm -rf "/usr/local/share/boost"
+          sudo rm -rf "$AGENT_TOOLSDIRECTORY"
+          echo "After removing files:"
+          df -h
+
+      - uses: actions/checkout@v4
+
+      - uses: DeterminateSystems/nix-installer-action@main
+      - uses: DeterminateSystems/magic-nix-cache-action@v2
+
+      - uses: cachix/cachix-action@v14
+        with:
+          name: daylin
+          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
+
+      - name: write lock file
+        if: "${{ inputs.lockFile != '' }}"
+        run: |
+          echo '${{ inputs.lockFile }}' > flake.lock
+          git diff
+
+      - name: Build
+        run: |
+          cachix watch-exec daylin -- nix build '.#checks.x86_64-linux.packageCheck'

.github/workflows/push.yml

@@ -9,6 +9,10 @@ on:
       - main
 
 jobs:
+  checks:
+    uses: ./.github/workflows/checks.yml
+    secrets: inherit
+
   build:
     strategy:
       max-parallel: 1

lib/default.nix

@@ -28,6 +28,17 @@ rec {
 
   nixosModules = listToAttrs (findModulesList ../modules);
 
+  mkPackageCheck =
+    { packages, pkgs }:
+    pkgs.runCommandLocal "build-third-party"
+      {
+        src = ./.;
+        nativeBuildInputs = [ packages ];
+      }
+      ''
+        mkdir "$out"
+      '';
+
   mkSystem =
     hostName:
     nixosSystem {
@@ -74,5 +85,18 @@ rec {
     packages = oizysPkg;
     devShells = devShells;
     formatter = forAllSystems (pkgs: pkgs.nixfmt-rfc-style);
+    checks = forAllSystems (pkgs: {
+      packageCheck = mkPackageCheck {
+        inherit pkgs;
+        # make sure lix is in this?
+        packages = [
+          pkgs.pixi
+          pkgs.swww
+
+          inputs.roc.packages.${pkgs.system}.full
+          inputs.roc.packages.${pkgs.system}.lang-server
+        ];
+      };
+    });
   };
 }

todo.md

@@ -1,10 +1,5 @@
 # oizys todo's
 
-
-## nix expr
-
-- [ ] find out why pixi on GHA is different from local (possibly from the fetch git step?)
-
 ## software
 
 - [ ] lid closed does not engage hyprlock?
@@ -17,4 +12,10 @@
   > kernel: ucsi_acpi USBC000:00: possible UCSI driver bug 2
   > kernel: ucsi_acpi USBC000:00: error -EINVAL: PPM init failed
 
+
+GHA is running out of space to build `othalan`.
+I really just want the CI to pre-compile a subset of the packages.
+Currently, it just burns resources downloading packages over and over again.
+Maybe I could use nix flake checks to accomplish this?
+
 <!-- generated with <3 by daylinmorgan/todo -->