檢視 Git 的原始碼

'''Git'''是一套版本控制系統（VCS）。

== Hook ==

Hook是針對某些行為的操作（通常包括了<code>pre-</code>以及<code>post-</code>），可以設計一些<code>pre-hook</code>在本地端擋住常見的錯誤行為。

=== 範例 ===

禁止在<code>develop</code>下直接commit，在<code>.git/hooks/pre-commit</code>裡面設定：

<syntaxhighlight lang="bash">
#!/bin/bash

if [[ "$(git rev-parse --abbrev-ref HEAD)" = "develop" ]]; then
    echo "You cannot commit directly to the develop branch."
    exit 1
fi
</syntaxhighlight>

禁止<code>develop</code>從其他branch rebase更新，但允許<code>origin/develop</code>，在<code>.git/hooks/pre-rebase</code>裡面設定：

<syntaxhighlight lang="bash">
#!/bin/bash

# $1: source branch.
# $2: destination branch (empty if it's current branch).

if [[ "$2" = "develop" || ( "$2" = "" && "$(git rev-parse --abbrev-ref HEAD)" = "develop" ) ]]; then
    if [[ "$1" = "origin/develop" ]]; then
        # OK
        exit 0
    fi

    echo "You cannot rebase develop branch from branch other than origin/develop."
    exit 1
fi
</syntaxhighlight>

=== Global ===

可以在<code>.gitconfig</code>將整包專案設定自定義的<code>hooksPath</code>，把上面提到的hook files（像是<code>pre-commit</code>或是<code>pre-rebase</code>）放到指定的目錄就可以了：

<syntaxhighlight lang="ini">
[core]
    hooksPath = ~/git/work/hooks
</syntaxhighlight>

除了全域設定以外，也可以搭配<code>includeIf</code>變成區域設定，只針對某些目錄下的專案使用特定的hook：

<syntaxhighlight lang="ini">
[includeIf "gitdir:~/git/work"]
    path = ~/git/work/.gitconfig
</syntaxhighlight>

== 外部連結 ==

* {{Official|https://git-scm.com/}} {{en}

[[Category:軟體]]