modules/port-magic: full module rework

modules/port-magic/default.nix

@@ -1,56 +1,11 @@
 { config, lib, ... }:
 
-with builtins;    
 with lib;    
 
-let
-  cfg = config.reservedPorts;
-
-  portNames = config.reservePortsFor;
-
-  portHash = flip pipe [
-    (hashString "md5")
-    (substring 0 7)
-    (hash: (fromTOML "v=0x${hash}").v)
-    (flip mod cfg.amount)
-    (add cfg.start)
-  ];
-
-  ports = genAttrs portNames portHash;
-
-  portsEnd = cfg.start + cfg.amount;
-in {
-  options = {
-    reservedPorts = {
-      amount = mkOption {
-        type = types.int;
-        default = 10000;
-        description = "Amount of ports to reserve at most.";
-      };
-      start = mkOption {
-        type = types.int;
-        default = 30000;
-        description = "Starting point for reserved ports.";
-      };
-    };
-    reservePortsFor = mkOption {
-      type = types.listOf types.str;
-      default = [];
-      description = "List of application names for which to automatically reserve ports.";
-    };
-    ports = mkOption {
-      type = types.attrsOf (types.ints.between cfg.start portsEnd);
-      default = {};
-      description = "Named network ports.";
-    };
-    portsStr = mkOption {
-      readOnly = true;
-      type = types.attrsOf types.str;
-      description = "Named network ports, as strings.";
-    };
-  };
-  config = lib.mkIf (config.reservePortsFor != []) {
-    inherit ports;
-    portsStr = mapAttrs (_: toString) ports;
+{
+  options.links = mkOption {
+    type = types.attrsOf (types.submodule ./link.nix);
+    description = "Port Magic links.";
+    default = {};
   };
 }

modules/port-magic/link.nix

@@ -0,0 +1,76 @@
+{ config, lib, name, ... }:
+
+with builtins;
+with lib;
+
+let
+  cfg = config;
+
+  portHash = flip pipe [
+    (hashString "md5")
+    (substring 0 7)
+    (hash: (fromTOML "v=0x${hash}").v)
+    (flip mod cfg.reservedPorts.amount)
+    (add cfg.reservedPorts.start)
+  ];
+in
+
+{
+  options = {
+    ipv4 = mkOption {
+      type = types.str;
+      default = "127.0.0.1";
+      description = "The IPv4 address.";
+    };
+    hostname = mkOption {
+      type = types.str;
+      description = "The hostname.";
+    };
+
+    port = mkOption {
+      type = types.int;
+      description = "The TCP or UDP port.";
+    };
+    portStr = mkOption {
+      type = types.str;
+      description = "The TCP or UDP port, as a string.";
+    };
+    reservedPorts = {
+      amount = mkOption {
+        type = types.int;
+        default = 10000;
+        description = "Amount of ports to reserve at most.";
+      };
+      start = mkOption {
+        type = types.int;
+        default = 30000;
+        description = "Starting point for reserved ports.";
+      };
+    };
+
+    protocol = mkOption {
+      type = types.str;
+      description = "The protocol in URL scheme name format.";
+    };
+    path = mkOption {
+      type = types.nullOr types.path;
+      default = null;
+      description = "The resource path.";
+    };
+    url = mkOption {
+      type = types.str;
+      description = "The URL.";
+    };
+    tuple = mkOption {
+      type = types.str;
+      description = "The hostname:port tuple.";
+    };
+  };
+  config = mkIf true {
+    hostname = mkDefault cfg.ipv4;
+    port = mkDefault (portHash name);
+    portStr = toString cfg.port;
+    tuple = "${cfg.hostname}:${cfg.portStr}";
+    url = "${cfg.protocol}://${cfg.hostname}:${cfg.portStr}${if cfg.path == null then "" else cfg.path}";
+  };
+}