example refactor snowflake module system

nix/snow/default.nix

@@ -12,180 +12,23 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 {
-  this,
-  self,
-  inputs,
-  systems,
   nt,
   mix,
   ...
 } @ args: let
-  inherit
-    (builtins)
-    all
-    attrNames
-    elem
-    mapAttrs
-    warn
-    ;
-
-  inherit (inputs.nixpkgs) lib;
-
   inherit (nt) findImport;
 in
   mix.newMixture args (mixture: let
     inherit (mixture) mapNodes;
   in {
-    includes.private = [
-      ./lib/nodes.nix
-    ];
+    includes = {
+      private = [
+        ./lib/nodes.nix
+      ];
+      public = [
+        ./flake
+      ];
+    };
 
     inherit findImport;
-
-    # snow.flake
-    flake = flakeInputs: root: let
-      module = lib.evalModules {
-        class = "snowflake";
-        # TODO: abort if inputs contains reserved names
-        specialArgs =
-          (flakeInputs
-            // {
-              inherit systems root;
-              inherit (this) snow;
-              inputs = flakeInputs;
-            })
-          |> (x: builtins.removeAttrs x ["self" "nodes"]);
-
-        modules = [
-          ./module.nix
-          ({config, ...}: {
-            _module.args = {
-              self = config;
-              nodes = config.nodes.nodes;
-            };
-          })
-        ];
-      };
-
-      nodes = module.config.nodes;
-    in rec {
-      nixosConfigurations = mapNodes nodes (
-        {
-          base,
-          lib,
-          name,
-          node,
-          groupModules,
-          ...
-        }: let
-          homeManager =
-            if node.homeManager != null
-            then node.homeManager
-            else if nodes.homeManager != null
-            then nodes.homeManager
-            else
-              warn ''
-                [snowflake] Neither `nodes.homeManager` nor `nodes.nodes.${name}.homeManager` were specified!
-                [snowflake] home-manager will NOT be used! User configuration will be ignored!
-              ''
-              null;
-
-          userArgs = nodes.args // node.args;
-          ceruleanArgs = {
-            inherit systems root base nodes node;
-            inherit (node) system;
-            inherit (this) snow;
-            hostname = name;
-
-            _cerulean = {
-              inherit inputs userArgs ceruleanArgs homeManager;
-              specialArgs = userArgs // ceruleanArgs;
-            };
-          };
-          specialArgs = assert (userArgs
-            |> attrNames
-            |> all (argName:
-              ! ceruleanArgs ? argName
-              || abort ''
-                `specialArgs` are like super important to Cerulean my love... </3
-                But `args.${argName}` is a reserved argument name :(
-              ''));
-            ceruleanArgs._cerulean.specialArgs;
-        in
-          lib.nixosSystem {
-            inherit (node) system;
-            inherit specialArgs;
-            modules =
-              [
-                self.nixosModules.default
-                (findImport /${root}/hosts/${name})
-              ]
-              ++ (groupModules root)
-              ++ node.modules
-              ++ nodes.modules;
-          }
-      );
-
-      deploy.nodes = mapNodes nodes ({
-        name,
-        node,
-        ...
-      }: let
-        inherit
-          (node.deploy)
-          ssh
-          user
-          interactiveSudo
-          remoteBuild
-          rollback
-          autoRollback
-          magicRollback
-          activationTimeout
-          confirmTimeout
-          ;
-
-        nixosFor = system: inputs.deploy-rs.lib.${system}.activate.nixos;
-      in {
-        hostname =
-          if ssh.host != null
-          then ssh.host
-          else "";
-
-        profilesOrder = ["default"]; # profiles priority
-        profiles.default = {
-          path = nixosFor node.system nixosConfigurations.${name};
-
-          user = user;
-          sudo = "sudo -u";
-          interactiveSudo = interactiveSudo;
-
-          fastConnection = false;
-
-          autoRollback = autoRollback -> rollback;
-          magicRollback = magicRollback -> rollback;
-          activationTimeout = activationTimeout;
-          confirmTimeout = confirmTimeout;
-
-          remoteBuild = remoteBuild;
-          sshUser = ssh.user;
-          sshOpts =
-            ssh.opts
-            ++ (
-              if elem "-p" ssh.opts
-              then []
-              else ["-p" (toString ssh.port)]
-            )
-            ++ (
-              if elem "-A" ssh.opts
-              then []
-              else ["-A"]
-            );
-        };
-      });
-
-      checks =
-        inputs.deploy-rs.lib
-        |> mapAttrs (system: deployLib:
-          deployLib.deployChecks deploy);
-    };
   })