glab: init module (#8066)

modules/misc/news/2025/10/2025-10-27_00-33-43.nix

@@ -0,0 +1,9 @@
+{
+  time = "2025-10-26T23:33:43+00:00";
+  condition = true;
+  message = ''
+    A new module is available: 'programs.glab'.
+
+    `glab` is an open source GitLab CLI tool that brings GitLab to your terminal.
+  '';
+}

modules/programs/glab.nix

@@ -0,0 +1,52 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  cfg = config.programs.glab;
+
+  yaml = pkgs.formats.yaml { };
+
+in
+{
+  meta.maintainers = [ lib.maintainers.bmrips ];
+
+  options.programs.glab = {
+    enable = lib.mkEnableOption "{command}`glab`.";
+    package = lib.mkPackageOption pkgs "glab" { nullable = true; };
+    aliases = lib.mkOption {
+      type = with lib.types; attrsOf str;
+      default = { };
+      description = "Aliases written to {file}`$XDG_CONFIG_HOME/glab-cli/aliases.yml`.";
+      example.co = "mr checkout";
+    };
+    settings = lib.mkOption {
+      inherit (yaml) type;
+      default = { };
+      description = "Configuration written to {file}`$XDG_CONFIG_HOME/glab-cli/config.yml`.";
+      example.check_update = false;
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    home.packages = lib.mkIf (cfg.package != null) [ cfg.package ];
+
+    # Use `systemd-tmpfiles` since glab requires its configuration file to have
+    # mode 0600.
+    systemd.user.tmpfiles.rules =
+      let
+        target = "${config.xdg.configHome}/glab-cli/config.yml";
+      in
+      lib.mkIf (cfg.settings != { }) [
+        "C+ ${target} - - - - ${yaml.generate "glab-config" cfg.settings}"
+        "z  ${target} 0600"
+      ];
+
+    xdg.configFile."glab-cli/aliases.yml" = lib.mkIf (cfg.aliases != { }) {
+      source = yaml.generate "glab-aliases" cfg.aliases;
+    };
+  };
+}