From c0ded8a0bdd4dad99919f366b6e763cc47a8892c Mon Sep 17 00:00:00 2001
From: RyosukeDTomita <d310151c2@gmail.com>
Date: Sat, 4 Jan 2025 16:09:16 +0900
Subject: [PATCH] feat: gitignore global

---
 doc/tools_doc/gitignore.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 doc/tools_doc/gitignore.md

diff --git a/doc/tools_doc/gitignore.md b/doc/tools_doc/gitignore.md
new file mode 100644
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+# gitignoreについて
+
+## サンプル
+
+[言語ごとのサンプル](https://github.com/github/gitignore)
+
+---
+
+## Globalなgitignore
+
+> Patterns which a user wants Git to ignore in all situations (e.g., backup or temporary files generated by the user’s editor of choice) generally go into a file specified by core.excludesFile in the user’s ~/.gitconfig. Its default value is $XDG_CONFIG_HOME/git/ignore. If $XDG_CONFIG_HOME is either not set or empty, $HOME/.config/git/ignore is used instead.
+> [公式ドキュメント](https://git-scm.com/docs/gitignore)
+
+`$XDG_CONFIG_HOMEが設定されていない場合の`初期値は`$HOME/.config/ignore`なので共通でgitignoreにいれたいファイルはここに入れておくのが良さそう。