gh: add module

tests/modules/programs/gh/config-file.nix

@@ -0,0 +1,27 @@
+{ config, lib, pkgs, ... }:
+
+{
+  config = {
+    programs.gh = {
+      enable = true;
+      aliases = { co = "pr checkout"; };
+      editor = "vim";
+    };
+
+    nixpkgs.overlays = [
+      (self: super: {
+        gitAndTools = super.gitAndTools // {
+          gh = pkgs.writeScriptBin "dummy-gh" "";
+        };
+      })
+    ];
+
+    nmt.script = ''
+      assertFileExists home-files/.config/gh/config.yml
+      assertFileContent home-files/.config/gh/config.yml ${
+        builtins.toFile "config-file.yml" ''
+          {"aliases":{"co":"pr checkout"},"editor":"vim","gitProtocol":"https"}''
+      }
+    '';
+  };
+}

tests/modules/programs/gh/default.nix

@@ -0,0 +1 @@
+{ gh-config-file = ./config-file.nix; }