GIT服务器钩子设置

项目越来越大，人员越来越多，代码变动很难通知到每一个项目组成员，尤其是一些核心配置的变动，故此需要在GIT代码库服务端做控制，客户端也可以，但是需要每一个人都在本地进行配置，麻烦亦没必要

核心诉求:

1、限制成员提交代码注释长度

2、核心配置文件修改需要邮件通知到每一个开发人员

要解决第一个诉求用到了GIT的pre-receive钩子，这个钩子会在客户端发起push请求后调用执行，只有执行通过才能合并进代码库，话不多说直接上代码：

```

#!/bin/bash

#pre-receive script

#set -x #for debugging

validate_ref()

{

    # --- Arguments

    oldrev=$(git rev-parse $1)

    newrev=$(git rev-parse $2)

    refname="$3"

    commitList=`git rev-list $oldrev..$newrev`

        #echo $commitList

    split=($commitList)

    for s in ${split[@]}

    do

        echo "@@@@@@@"

        echo "$s"

        msg=`git cat-file commit $s | sed '1,/^$/d'`

        echo $msg

        if [ ${#msg} -lt 15 ];then

            echo "!!! Commit message length less than 15"

            exit 1

        else

            echo "bigger than 5"

        fi

    done

}

fail=""

# Allow dual mode: run from the command line just like the update hook, or

# if no arguments are given then run as a hook script

if [ -n "$1" -a -n "$2" -a -n "$3" ]; then

    # Output to the terminal in command line mode - if someone wanted to

    # resend an email; they could redirect the output to sendmail

    # themselves

    PAGER= validate_ref $2 $3 $1

else

    while read oldrev newrev refname

    do

        validate_ref $oldrev $newrev $refname

    done

fi

if [ -n "$fail" ]; then

    exit $fail

fi

```