snapshot

lib.nix

@@ -13,4 +13,63 @@ lib: _: {
     host,
     port,
   }: "${host}:${builtins.toString port}";
+
+  mkSecrets = secrets: let
+    mkSecret = {
+      name,
+      secret,
+    }:
+      secret
+      // {
+        file = ./secrets/${name}.age;
+      };
+  in
+    builtins.mapAttrs (name: secret: mkSecret {inherit name secret;}) secrets;
+
+  genNixosConfigurations = {
+    inputs,
+    extraModules,
+  }: let
+    commonDir = ./common;
+    classesDir = ./classes;
+    hostsDir = ./hosts;
+
+    commonNixosSystem = {
+      class,
+      name,
+    }:
+      lib.nixosSystem {
+        specialArgs = {
+          inherit inputs lib;
+          attrName = name;
+        };
+
+        modules =
+          (lib.findModules [
+            commonDir
+            ./classes/${class}
+            (classesDir + "/${class}")
+            (hostsDir + "/${class}/${name}")
+          ])
+          ++ [
+            {networking.hostName = lib.mkDefault name;}
+          ]
+          ++ extraModules;
+      };
+
+    dirsIn = dir:
+      lib.pipe (builtins.readDir dir) [
+        (lib.filterAttrs (_: type: type == "directory"))
+        builtins.attrNames
+      ];
+  in
+    lib.pipe (dirsIn hostsDir) [
+      (classes:
+        builtins.concatMap (
+          class: map (name: {inherit class name;}) (dirsIn (hostsDir + "/${class}"))
+        )
+        classes)
+      (map (obj: lib.nameValuePair obj.name (commonNixosSystem obj)))
+      builtins.listToAttrs
+    ];
 }