nixos/git: init

nixos/doc/manual/from_md/release-notes/rl-2111.section.xml

@@ -232,6 +232,13 @@
           <link linkend="opt-services.nats.enable">services.nats</link>.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          <link xlink:href="https://git-scm.com">git</link>, a
+          distributed version control system. Available as
+          <link xlink:href="options.html#opt-programs.git.enable">programs.git</link>.
+        </para>
+      </listitem>
     </itemizedlist>
   </section>
   <section xml:id="sec-release-21.11-incompatibilities">

nixos/doc/manual/release-notes/rl-2111.section.md

@@ -71,6 +71,8 @@ subsonic-compatible api. Available as [navidrome](#opt-services.navidrome.enable
 
 - [nats](https://nats.io/), a high performance cloud and edge messaging system. Available as [services.nats](#opt-services.nats.enable).
 
+- [git](https://git-scm.com), a distributed version control system. Available as [programs.git](options.html#opt-programs.git.enable).
+
 ## Backward Incompatibilities {#sec-release-21.11-incompatibilities}
 
 

nixos/modules/module-list.nix

@@ -145,6 +145,7 @@
   ./programs/fuse.nix
   ./programs/gamemode.nix
   ./programs/geary.nix
+  ./programs/git.nix
   ./programs/gnome-disks.nix
   ./programs/gnome-documents.nix
   ./programs/gnome-terminal.nix

nixos/modules/programs/git.nix

@@ -0,0 +1,45 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.programs.git;
+in
+
+{
+  options = {
+    programs.git = {
+      enable = mkEnableOption "git";
+
+      package = mkOption {
+        type = types.package;
+        default = pkgs.git;
+        defaultText = "pkgs.git";
+        example = literalExample "pkgs.gitFull";
+        description = "The git package to use";
+      };
+
+      config = mkOption {
+        type = types.attrs;
+        default = { };
+        example = {
+          init.defaultBranch = "main";
+          url."https://github.com/".insteadOf = [ "gh:" "github:" ];
+        };
+        description = ''
+          Configuration to write to /etc/gitconfig. See the CONFIGURATION FILE
+          section of git-config(1) for more information.
+        '';
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = [ cfg.package ];
+    environment.etc.gitconfig = mkIf (cfg.config != {}) {
+      text = generators.toGitINI cfg.config;
+    };
+  };
+
+  meta.maintainers = with maintainers; [ figsoda ];
+}