在使用Mac进行编码过程中，为了适应自己的使用习惯，针对Git 进行一些优化配置，主要配置如下：
1. git 自动补全
1）curl https://raw.githubusercontent.com/git/git/master/contrib/completion/git-completion.bash -o ~/.git-completion.bash
2）vi ~/.bash_profile
3）if [ -f ~/.git-completion.bash ]; then. ~/.git-completion.bashfi
4）source ~/.bash_profile
2. git显示当前分支
1）vi .bashrc
2) function git_branch {
branch="`git branch 2>/dev/null | grep "^\*" | sed -e "s/^\*\ //"`"
if [ "${branch}" != "" ];then
if [ "${branch}" = "(no branch)" ];then
branch="(`git rev-parse --short HEAD`...)"
fi
echo " ($branch)"
fi
}
export PS1='\u@\h \[\033[01;36m\]\W\[\033[01;32m\]$(git_branch)\[\033[00m\] \$ '
3) source ./.bashrc
