migration: simple module generator functions

1 files changed, 27 insertions, 0 deletions

diff --git a/snowfall/lib/modules/default.nix b/snowfall/lib/modules/default.nix
new file mode 100644
index 0000000..b351f7e
--- /dev/null
+++ b/snowfall/lib/modules/default.nix
@@ -0,0 +1,27 @@
+{ lib, namespace }:
+
+let
+  mkSimpleModule = category: name: { packages ? null, persist ? [] }: (
+    { options, config, lib, pkgs, ... }:
+
+    with lib; with lib.${namespace}; let 
+      cfg = config.${namespace}.${category}.${name};
+      impermanence = config.${namespace}.impermanence;
+    in {
+      options.${namespace}.${category}.${name} = with types; {
+        enable = mkEnableOption "${name}";
+      };
+
+      config = mkIf cfg.enable {
+        home.packages = if (packages != null) then packages else [ pkgs.${name} ];
+
+        home.persistence.${impermanence.location} = {
+          directories = persist;
+        };
+      };
+    }
+  );
+in {
+  mkSimpleApp = name: args@{ ... }: mkSimpleModule "apps" name args;
+  mkSimpleTool = name: args@{ ... }: mkSimpleModule "tools" name args;
+}