refactor(scripts): スクリプトをサブディレクトリ構造に移行する

modules/scripts/default.nix

@@ -1,7 +1,8 @@
 { ... }:
+let
+  entries = builtins.readDir ./.;
+  dirs = builtins.filter (name: entries.${name} == "directory") (builtins.attrNames entries);
+in
 {
-  imports = [
-    ./switch-branch-with-refresh.nix
-    ./nix-init-env.nix
-  ];
+  imports = map (d: ./. + "/${d}") dirs;
 }

modules/scripts/nix-init-env.nix → modules/scripts/nix-init-env/default.nix

@@ -8,7 +8,7 @@
         pkgs.jq
         pkgs.coreutils
       ];
-      text = builtins.readFile ./nix-init-env.sh;
+      text = builtins.readFile ./script.sh;
     })
   ];
 }

modules/scripts/switch-branch-with-refresh/default.nix

@@ -0,0 +1,10 @@
+{ pkgs, ... }:
+{
+  home.packages = [
+    (pkgs.writeShellApplication {
+      name = "switch-branch-with-refresh";
+      runtimeInputs = [ pkgs.git ];
+      text = builtins.readFile ./script.sh;
+    })
+  ];
+}

modules/scripts/switch-branch-with-refresh/script.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+if [ -z "${1:-}" ]; then
+  echo "Usage: switch-branch-with-refresh <new-branch-name>" >&2
+  exit 1
+fi
+
+current_branch=$(git branch --show-current)
+
+if [ -z "$current_branch" ]; then
+  echo "Error: Not on a branch (detached HEAD?)" >&2
+  exit 1
+fi
+
+# 新ブランチを作成（現在のコミットをそのまま引き継ぐ）
+if ! git switch -c "$1"; then
+  echo "Error: Failed to create branch '$1'." >&2
+  exit 1
+fi
+
+# 元ブランチをリモートの状態にリセット
+git fetch origin
+git switch "$current_branch"
+echo "Warning: This will reset '$current_branch' to origin/$current_branch with --hard."
+read -r -p "Continue? [y/N] " confirm
+if [ "$confirm" != "y" ] && [ "$confirm" != "Y" ]; then
+  echo "Aborted. Switching back to '$1'."
+  git switch "$1"
+  exit 1
+fi
+git reset --hard "origin/$current_branch"
+
+# 新ブランチに移動して完了
+git switch "$1"
+echo "Done. Commits are on '$1'. '$current_branch' reset to origin/$current_branch."