shell脚本：利用7z备份git项目

注：无git的方法参见：tar 或 7z 备份项目

首先利用homebrew安装p7zip

$ brew install p7zip

然后利用两个shell脚本：

• backupProject.sh 会在指定的项目文件夹中找到所有.git目录，对其git gc压缩，然后用7za创建两个7z文件：
  
  • PROJECTDIR.2016-03-15-12-00-00.Src.7z
  • PROJECTDIR.2016-03-15-12-00-00.gitpack.7z
• restoreProject.sh 会将上述两个文件用7za解压到目录：
  
  • PROJECTDIR.2016-03-15-12-00-00.output

准备：

1. 准备工作：首先用文本编辑工具打开 backupProject.sh 文件，修改项目名称 projPath=PROJECTDIR 和压缩密码 password=Demo 然后打开 restoreProject.sh 文件，修改解压缩密码 password=Demo
2. 给两个 sh 脚本可执行权限：

   chmod +x backupProject.sh restoreProject.sh

3. 两个脚本与项目文件夹 PROJECTDIR 在同级目录

使用：

1. 备份：
   

   ./backupProject.sh

2. 还原：

   ./restoreProject PROJECTDIR.2016-03-15-12-00-00.Src.7z

例子：

$ ls
PROJECTDIR        backupProject.sh        restoreProject.sh

// 备份
$ ./backupProject.sh
Ready...
git gc: PROJECTDIR/.git
Nothing new to pack.
git gc: PROJECTDIR/frameworks/.git
...
git gc: PROJECTDIR/library/.git
...
git gc: PROJECTDIR/Universal/.git
...
Backuping(1/2): PROJECTDIR.2016-03-15-12-00-00.Src.7z
...
Backuping(2/2): PROJECTDIR.2016-03-15-12-00-00.gitpack.7z
...
Done.

$ ls
PROJECTDIR
PROJECTDIR.2016-03-15-12-00-00.Src.7z
PROJECTDIR.2016-03-15-12-00-00.gitpack.7z    
backupProject.sh
restoreProject.sh

// 恢复
$ ./restoreProject.sh PROJECTDIR.2016-03-15-12-00-00.Src.7z
Ready...
Extracting PROJECTDIR.2016-03-15-12-00-00.Src.7z...
...
Extracting PROJECTDIR.2016-03-15-12-00-00.gitpack.7z...
...
Output Dir: PROJECTDIR.2016-03-15-12-00-00.output
Done.

$ ls
PROJECTDIR
PROJECTDIR.2016-03-15-12-00-00.Src.7z
PROJECTDIR.2016-03-15-12-00-00.output
PROJECTDIR.2016-03-15-12-00-00.gitpack.7z    
backupProject.sh
restoreProject.sh
$ ls PROJECTDIR.2016-03-15-12-00-00.output/
PROJECTDIR
$

脚本源码如下：

backupProject.sh

#!/bin/sh
projPath=PROJECTDIR
password=Demo
## level=0,1,3,5,7,9   Level 0 is no compression, 5 is normal, 9 is Ultra.
level=5
## gitgc=0,1   0 is not gc, 1 is git gc
gitgc=1
now=`date +%Y-%m-%d-%H-%M-%S`
output=$projPath.$now.Src.7z
output2=$projPath.$now.gitpack.7z

function printMsg() {
    echo "33[1;34m$133[0m"
}

function printMsgNoColor() {
    echo "33[1;m$133[0m"
}

## start
printMsg "Ready..."
for gitdir in `find $projPath -iname ".git"`; do
    if [[ $gitgc -eq 1 ]]; then
        printMsg "git gc: $gitdir"
        git -C $gitdir/.. gc
    else
        printMsgNoColor "$gitdir"
    fi
    pack="$gitdir/objects/pack/"
    xrdirs="$xrdirs -xr!$pack"
    packs="$packs $pack"
done
printMsg "Backuping(1/2): $output"
7za a -t7z -mx=$level $output "$projPath/" -scsUTF-8 -p$password $xrdirs
printMsg "Backuping(2/2): $output2"
7za a -t7z -mx=0 $output2 $packs -scsUTF-8 -p$password
printMsg "Done."

restoreProject.sh

#!/bin/sh
password=Demo

function printError() {
    echo "FAIL!"
    echo "SAMPLE1: $0 xxxxxxxx.Src.7z"
    echo "SAMPLE2: $0 xxxxxxxx.gitpack.7z"
}

function printMsg() {
    echo "33[1;34m$133[0m"
}

## start
printMsg "Ready..."
if [[ -a $1 ]]; then
    if [[ $1 == *.Src.7z ]]; then
        file1=$1
        file2=`echo $1|sed -n "s/.Src.7z/.gitpack.7z/p"`
    elif [[ $1 == *.gitpack.7z ]]; then
        file1=`echo $1|sed -n "s/.gitpack.7z/.Src.7z/p"`
        file2=$1
    else
        printError
        exit 0
    fi

    output=`echo $file1|sed -n "s/.Src.7z/.output/p"`
    if [[ -a $file1 ]]; then
        printMsg "Extracting $file1..."
        7za x -aoa -y $file1 -o$output -p$password
    fi
    if [[ -a $file2 ]]; then
        printMsg "Extracting $file2..."
        7za x -aoa -y $file2 -o$output -p$password
    fi
    printMsg "Output Dir: $output"
    printMsg "Done."
else
    printError
fi

下载：

https://github.com/m2nlight/backupProject