shell/starship: add git short status

modules/programs/terminal/shell/starship.nix

@@ -4,14 +4,15 @@
   config,
   ...
 }: let
-  inherit (config.local.systemVars) username;
+  inherit (lib.strings) concatStrings;
   toTOML = (pkgs.formats.toml {}).generate;
+  inherit (config.local.systemVars) username;
 in {
   config = lib.mkIf config.local.profiles.desktop.enable {
     hjem.users.${username} = {
       packages = [pkgs.starship];
       files = {
-        ".config/starship/config.toml".source = toTOML "starship config" {
+        ".config/starship.toml".source = toTOML "starship config" {
           add_newline = true;
           directory = {
             style = "bold yellow";
@@ -25,6 +26,43 @@ in {
             style = "yellow";
             format = "[ $duration]($style)";
           };
+          # https://github.com/llakala/nixos/blob/6e840f11d19e59b49e7ba9573f1398830799758a/apps/core/starship/git_status.nix
+          git_status = {
+            modified = "M";
+            staged = "S";
+            untracked = "A";
+            renamed = "R";
+            deleted = "D";
+            conflicted = "U";
+
+            ahead = "[+$count](green)";
+            behind = "[-$count](red)";
+            diverged = "[+$ahead_count](green),[-$behind_count](red)";
+
+            style = "white";
+
+            # referenced from https://github.com/clotodex/nix-config/blob/c878ff5d5ae674b49912387ea9253ce985cbd3cd/shell/starship.nix#L82
+            format =
+              concatStrings
+              [
+                "[("
+
+                "(\\["
+                "[($conflicted)](orange)"
+                "[($stashed)](white)"
+                "[($staged)](blue)"
+                "[($deleted)](red)"
+                "[($renamed)](yellow)"
+                "[($modified)](yellow)"
+                "[($untracked)](green)"
+                "\\])"
+
+                "( \\[$ahead_behind\\])"
+
+                " )]"
+                "($style)"
+              ];
+          };
         };
       };
     };