home: create 'modules/home' folder

Consolidating all modules under the same path, to clear out the
top-level directory.

modules/home/gdb/default.nix

@@ -0,0 +1,38 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.home.gdb;
+in
+{
+  options.my.home.gdb = with lib; {
+    enable = my.mkDisableOption "gdb configuration";
+
+    rr = {
+      enable = my.mkDisableOption "rr configuration";
+
+      package = mkOption {
+        type = types.package;
+        default = pkgs.rr;
+        defaultText = literalExample "pkgs.rr";
+        description = ''
+          Package providing rr
+        '';
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable (lib.mkMerge [
+    {
+      home.packages = with pkgs; [
+        gdb
+      ];
+
+      xdg.configFile."gdb/gdbinit".source = ./gdbinit;
+    }
+
+    (lib.mkIf cfg.rr.enable {
+      home.packages = [
+        cfg.rr.package
+      ];
+    })
+  ]);
+}

modules/home/gdb/gdbinit

@@ -0,0 +1,24 @@
+ # Keep a history of all commands in each directory
+set history save on
+
+# Enable those pretty-printers
+enable pretty-printer
+
+# Pretty formatting of structures
+set print pretty on
+# Show derived type based on VTable
+set print object on
+# Show static members
+set print static-members on
+# Show VTable
+set print vtbl on
+# Demangle types
+set print demangle on
+
+# Read python scrips in the load path
+set auto-load python-scripts
+
+# Allow autoloading project-local .gdbinit files
+add-auto-load-safe-path ~/git/
+# Allow autoloading from the Nix store
+add-auto-load-safe-path /nix/store