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-rw-r--r--nixos/modules/programs/npm.nix54
1 files changed, 54 insertions, 0 deletions
diff --git a/nixos/modules/programs/npm.nix b/nixos/modules/programs/npm.nix
new file mode 100644
index 00000000000..d79c6c73400
--- /dev/null
+++ b/nixos/modules/programs/npm.nix
@@ -0,0 +1,54 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.programs.npm;
+in
+
+{
+  ###### interface
+
+  options = {
+    programs.npm = {
+      enable = mkEnableOption "<command>npm</command> global config";
+
+      package = mkOption {
+        type = types.package;
+        description = "The npm package version / flavor to use";
+        default = pkgs.nodePackages.npm;
+        defaultText = literalExpression "pkgs.nodePackages.npm";
+        example = literalExpression "pkgs.nodePackages_13_x.npm";
+      };
+
+      npmrc = mkOption {
+        type = lib.types.lines;
+        description = ''
+          The system-wide npm configuration.
+          See <link xlink:href="https://docs.npmjs.com/misc/config"/>.
+        '';
+        default = ''
+          prefix = ''${HOME}/.npm
+        '';
+        example = ''
+          prefix = ''${HOME}/.npm
+          https-proxy=proxy.example.com
+          init-license=MIT
+          init-author-url=http://npmjs.org
+          color=true
+        '';
+      };
+    };
+  };
+
+  ###### implementation
+
+  config = lib.mkIf cfg.enable {
+    environment.etc.npmrc.text = cfg.npmrc;
+
+    environment.variables.NPM_CONFIG_GLOBALCONFIG = "/etc/npmrc";
+
+    environment.systemPackages = [ cfg.package ];
+  };
+
+}