nix: VM tests; demo VM; cleanup

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: If0fe78ab43436c7e85fa357483bb4c8c6a6a6964

flake.nix

@@ -1,77 +1,107 @@
 {
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = "github:NixOS/nixpkgs?ref=nixpkgs-unstable";
     crane.url = "github:ipetkov/crane";
   };
 
   outputs = {
     nixpkgs,
     crane,
+    self,
     ...
   }: let
-    # FIXME: allow multi-system when I can be arsed to write the abstractions
-    system = "x86_64-linux";
-    pkgs = nixpkgs.legacyPackages.${system};
-    craneLib = crane.mkLib pkgs;
-    src = craneLib.cleanCargoSource ./.;
-
-    commonArgs = {
-      pname = "feel-ci";
-      inherit src;
-      strictDeps = true;
-    };
-
-    cargoArtifacts = craneLib.buildDepsOnly commonArgs;
-
-    # Build individual workspace members
-    server = craneLib.buildPackage (commonArgs
-      // {
-        inherit cargoArtifacts;
-        pname = "server";
-        cargoExtraArgs = "--package server";
-      });
-
-    evaluator = craneLib.buildPackage (commonArgs
-      // {
-        inherit cargoArtifacts;
-        pname = "evaluator";
-        cargoExtraArgs = "--package evaluator";
-      });
-
-    queue-runner = craneLib.buildPackage (commonArgs
-      // {
-        inherit cargoArtifacts;
-        pname = "queue-runner";
-        cargoExtraArgs = "--package queue-runner";
-      });
-
-    common = craneLib.buildPackage (commonArgs
-      // {
-        inherit cargoArtifacts;
-        pname = "common";
-        cargoExtraArgs = "--package common";
-      });
-
-    migrate-cli = craneLib.buildPackage (commonArgs
-      // {
-        inherit cargoArtifacts;
-        pname = "migrate-cli";
-        cargoExtraArgs = "--package migrate-cli";
-      });
+    inherit (nixpkgs) lib;
+    forAllSystems = lib.genAttrs ["x86_64-linux" "aarch64-linux"];
   in {
-    packages.${system} = {
-      inherit server evaluator queue-runner common migrate-cli;
+    # NixOS module for feel-ci
+    nixosModules = {
+      fc-ci = ./nix/modules/nixos.nix;
+      default = self.nixosModules.fc-ci;
     };
 
-    devShells.${system}.default = craneLib.devShell {
-      name = "fc";
-      inputsFrom = [server];
-      packages = with pkgs; [
-        rust-analyzer
-        postgresql
-        pkg-config
-        openssl
-      ];
-    };
+    packages = forAllSystems (system: let
+      pkgs = nixpkgs.legacyPackages.${system};
+      craneLib = crane.mkLib pkgs;
+
+      src = let
+        fs = lib.fileset;
+        s = ./.;
+      in
+        fs.toSource {
+          root = s;
+          fileset = fs.unions [
+            (s + /crates)
+            (s + /Cargo.lock)
+            (s + /Cargo.toml)
+          ];
+        };
+
+      commonArgs = {
+        pname = "feel-ci";
+        inherit src;
+        strictDeps = true;
+        nativeBuildInputs = with pkgs; [pkg-config];
+        buildInputs = with pkgs; [openssl];
+      };
+
+      cargoArtifacts = craneLib.buildDepsOnly commonArgs;
+    in {
+      demo-vm = pkgs.callPackage ./nix/demo-vm.nix {
+        nixosModule = self.nixosModules.default;
+        fc-packages = {
+          inherit (self.packages.${system}) fc-common fc-evaluator fc-migrate-cli fc-queue-runner fc-server;
+        };
+      };
+
+      # FC Packages
+      fc-common = pkgs.callPackage ./nix/packages/fc-common.nix {
+        inherit craneLib commonArgs cargoArtifacts;
+      };
+
+      fc-evaluator = pkgs.callPackage ./nix/packages/fc-evaluator.nix {
+        inherit craneLib commonArgs cargoArtifacts;
+      };
+
+      fc-migrate-cli = pkgs.callPackage ./nix/packages/fc-migrate-cli.nix {
+        inherit craneLib commonArgs cargoArtifacts;
+      };
+
+      fc-queue-runner = pkgs.callPackage ./nix/packages/fc-queue-runner.nix {
+        inherit craneLib commonArgs cargoArtifacts;
+      };
+
+      fc-server = pkgs.callPackage ./nix/packages/fc-server.nix {
+        inherit craneLib commonArgs cargoArtifacts;
+      };
+    });
+
+    checks = forAllSystems (system: let
+      pkgs = nixpkgs.legacyPackages.${system};
+    in {
+      vm-test = pkgs.callPackage ./nix/vm-test.nix {
+        nixosModule = self.nixosModules.default;
+        fc-packages = {
+          inherit (self.packages.${system}) fc-common fc-evaluator fc-migrate-cli fc-queue-runner fc-server;
+        };
+      };
+    });
+
+    devShells = forAllSystems (system: let
+      pkgs = nixpkgs.legacyPackages.${system};
+      craneLib = crane.mkLib pkgs;
+    in {
+      default = craneLib.devShell {
+        name = "fc";
+        inputsFrom = [self.packages.${system}.fc-server];
+
+        strictDeps = true;
+        packages = with pkgs; [
+          rust-analyzer
+          postgresql
+          pkg-config
+          openssl
+        ];
+      };
+    });
   };
 }