gh: add module

modules/programs/gh.nix

@@ -0,0 +1,53 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.programs.gh;
+
+in {
+  meta.maintainers = [ maintainers.gerschtli ];
+
+  options.programs.gh = {
+    enable = mkEnableOption "GitHub CLI tool";
+
+    aliases = mkOption {
+      type = with types; attrsOf str;
+      default = { };
+      example = literalExample ''
+        {
+          co = "pr checkout";
+          pv = "pr view";
+        }
+      '';
+      description = ''
+        Aliases that allow you to create nicknames for gh commands.
+      '';
+    };
+
+    editor = mkOption {
+      type = types.str;
+      default = "";
+      description = ''
+        The editor that gh should run when creating issues, pull requests, etc.
+        If blank, will refer to environment.
+      '';
+    };
+
+    gitProtocol = mkOption {
+      type = types.enum [ "https" "ssh" ];
+      default = "https";
+      description = ''
+        The protocol to use when performing Git operations.
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    home.packages = [ pkgs.gitAndTools.gh ];
+
+    xdg.configFile."gh/config.yml".text =
+      builtins.toJSON { inherit (cfg) aliases editor gitProtocol; };
+  };
+}