*建立 Git Repository

建立 git repository 資料儲存目錄
```
root@ip123:~# mkdir -p /srv/git
```
進入 git repository 資料儲存目錄
```
root@ip123:~# cd /srv/git
```

建立一個空的 git repository python_pg.git，一般副檔名設定為 .git。

root@ip123:/srv/git# git init --bare python_pg.git
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
Initialized empty Git repository in /srv/git/python_pg.git/

git repository python_pg.git 目錄產生的資料。

root@ip123:/srv/git# ll python_pg.git/
total 16
drwxr-xr-x. 2 root root    6 Feb  3 07:38 branches
-rw-r--r--. 1 root root   66 Feb  3 07:38 config
-rw-r--r--. 1 root root   73 Feb  3 07:38 description
-rw-r--r--. 1 root root   23 Feb  3 07:38 HEAD
drwxr-xr-x. 2 root root 4096 Feb  3 07:38 hooks
drwxr-xr-x. 2 root root   21 Feb  3 07:38 info
drwxr-xr-x. 4 root root   30 Feb  3 07:38 objects
drwxr-xr-x. 4 root root   31 Feb  3 07:38 refs

Git 提供掛鉤 (hook) 事件觸發功能，在某些時間點執行客製化的工作，掛鉤檔都在 hooks 目錄下，範例檔都以 .sample 為副檔名，先使用範例 post-update.sample。

root@ip123:/srv/git# mv python_pg.git/hooks/post-update.sample python_pg.git/hooks/post-update
root@ip123:/srv/git# cat python_pg.git/hooks/post-update
#!/usr/bin/sh
#
# An example hook script to prepare a packed repository for use over
# dumb transports.
#
# To enable this hook, rename this file to "post-update".

exec git update-server-info

變更掛鉤檔 post-updates 屬性為可執行。

root@ip123:/srv/git# chmod +x python_pg.git/hooks/post-update

為允敨用戶經由 http push 到 git repository，必須在 config 配置檔中加入 http 章節，設定「receivepack = true」。

root@ip123:/srv/git# vi python_pg.git/config
[core]
	repositoryformatversion = 0
	filemode = true
	bare = true
[http]
    receivepack = true