initial commit

1 files changed, 72 insertions, 0 deletions

diff --git a/module.nix b/module.nix
new file mode 100644
index 0000000..cf243f9
--- /dev/null
+++ b/module.nix
@@ -0,0 +1,72 @@
+self: {
+  lib,
+  flake-parts-lib,
+  ...
+}: let
+  inherit
+    (flake-parts-lib)
+    mkPerSystemOption
+    ;
+
+  inherit
+    (lib)
+    literalExpression
+    mdDoc
+    mkOption
+    types
+    ;
+
+  procfileSubmodule = {
+    config,
+    name,
+    system,
+    ...
+  }: {
+    options = {
+      processes = mkOption {
+        type = types.attrsOf types.str;
+        default = {};
+        description = mdDoc "Attribute set mapping the names of processes to their command";
+        example = literalExpression ''
+          {
+            redis = lib.getExe' pkgs.redis "redis-server";
+          }
+        '';
+      };
+
+      package = mkOption {
+        type = types.package;
+        description = mdDoc "Final package containing runner for Procfile";
+        readOnly = true;
+      };
+    };
+
+    config = {
+      package = self.lib.${system}.mkProcfileRunner {
+        inherit name;
+        procGroup = config.processes;
+      };
+    };
+  };
+in {
+  options = {
+    perSystem = mkPerSystemOption ({system, ...}: {
+      options.procfiles = mkOption {
+        type = types.attrsOf (types.submoduleWith {
+          modules = [procfileSubmodule];
+          specialArgs = {inherit system;};
+        });
+
+        default = {};
+        description = mdDoc "Attribute set containing procfile declarations";
+        example = literalExpression ''
+          {
+            daemons.processes = {
+              redis = lib.getExe' pkgs.redis "redis-server";
+          	};
+          }
+        '';
+      };
+    });
+  };
+}