Git管理本地代码

安装Git

$sudo apt-get install git
$sudo apt-get install git-core

更新Git

$git clone git://git.kernel.org/pub/scm/git/git.git

安装好git后在终端输入git 命令会显示git命令提示，证明git已经安装成功。

初始化代码仓库

$mkdir Android4.2
$cd android4.2
$git init

提示： Initialized empty Git repository in /data/Downloads/Git/android4.2/.git/证明git仓库（repository）创建成功
配置config文件（全局）

$cd .git
$vim config

该配置文件的原始内容为：

[core]
        repositoryformatversion = 0
        filemode = true
        bare = false
        logallrefupdates = true

在该配置文件中加入以下内容：

[receive]
denyCurrentBranch = ignore

加入该配置的目的是：允许使用git push 提交代码到服务器，否则会出现以下异常：

加入该配置的目的是：允许使用git push 提交代码到服务器，否则会出现以下异常：
remote: error: refusing to update checked out branch: refs/heads/master
remote: error: By default, updating the current branch in a non-bare repository
remote: error: is denied, because it will make the index and work tree inconsistent
remote: error: with what you pushed, and will require 'git reset --hard' to match
remote: error: the work tree to HEAD.
remote: error:
remote: error: You can set 'receive.denyCurrentBranch' configuration variable to
remote: error: 'ignore' or 'warn' in the remote repository to allow pushing into
remote: error: its current branch; however, this is not recommended unless you
remote: error: arranged to update its work tree to match what you pushed in some
remote: error: other way.
remote: error:
remote: error: To squelch this message and still keep the default behaviour, set
remote: error: 'receive.denyCurrentBranch' configuration variable to 'refuse'.
To [email protected]:/var/git.server/.../web
! [remote rejected] master -> master (branch is currently checked out)
error: failed to push some refs to '[email protected]:/var/git.server/.../web'

在代码仓库创建一个说明文档（该文档可以随便创建）

$touch spec.txt

备注：如果初始的代码仓库为空，git push origin master提交代码的时候会出现以下异常：

error: src refspec master does not match any.
error: failed to push some refs to '/data/Downloads/Git/android4.2/.git
因此我们需要在初始化代码仓库之后，在仓库中创建一个文件：

实例：

$touch spec.txt
$git add spec.txt
$git commit-a -m "first commit"
$git push

此时，基本的代码仓库已经创建完成。本地代码仓库的Git库为：/data/Downloads/Git/android4.2/.git