fixup! WIP: Add unit tests

.forgejo/workflows/build.yaml

@@ -20,8 +20,8 @@ jobs:
           git config --unset "http.${GITHUB_SERVER_URL}/.extraHeader"
           git lfs install --local
           git lfs pull
-      - name: Build
-        run: nix build -L .#li7y .#li7y-oci
+      - name: Build and test
+        run: nix build -L .#li7y .#li7y-oci .#li7y-tarpaulin
       - name: Push OCI image
         if: github.ref == 'refs/heads/master'
         run: |
@@ -30,3 +30,8 @@ jobs:
           podman tag li7y git.sbruder.de/simon/li7y:latest
           podman login --username simon --password "${{ secrets.REGISTRY_PASSWORD }}" git.sbruder.de
           podman push git.sbruder.de/simon/li7y:latest
+      - run: nix build -L .#li7y-tarpaulin
+      - uses: actions/upload-artifact@v4
+        with:
+          name: tarpaulin
+          path: result/

flake.nix

@@ -74,8 +74,10 @@
         };
       };
 
-      packages = rec {
-        li7y = naersk'.buildPackage {
+      packages =
+        let
+          # naersk does not easily allow overrideAttrs
+          commonNaerskConfigurarion = {
             src = self;
 
             checkInputs = with pkgs; [
@@ -97,8 +99,29 @@
             # Also, this enforces that the full query cache is included in the repository.
             SQLX_OFFLINE = true;
           };
+        in
+        rec {
+          li7y = naersk'.buildPackage commonNaerskConfigurarion;
           default = li7y;
 
+          li7y-tarpaulin = naersk'.buildPackage (commonNaerskConfigurarion // {
+            name = "li7y-tarpaulin";
+
+            checkInputs = commonNaerskConfigurarion.checkInputs ++ (with pkgs; [
+              cargo-tarpaulin
+            ]);
+
+            dontBuild = true;
+            singleStep = true; # tarpaulin uses different options anyway
+
+            cargoTestCommands = _: [ "cargo tarpaulin" ];
+
+            postInstall = ''
+              rm -r $out
+              cp -r target/tarpaulin $out
+            '';
+          });
+
           li7y-oci = pkgs.dockerTools.buildLayeredImage {
             name = "li7y";
             tag = "latest";