主要实现
- 显示当前路径
- 显示当前所在分支
- 显示当前修改状态
=表示一个干净的分支~表示文件有改动#表示已commit 但未 push

通过网上搜索和自己根据实际需要修改的代码如下:
.bash_profile
function parse_git_dirty {
local git_status=$(git status 2> /dev/null | tail -n1) || $(git status 2> /dev/null | head -n 2 | tail -n1);
local git_now;
if [[ "$git_status" != "" ]]; then
#local git_now; # 标示
#echo "${git_status}"
if [[ "$git_status" =~ nothing to commit || "$git_status" =~ Your branch is up-to-date with ]]; then
git_now="=";
elif [[ "$git_status" =~ no changes added to commit ]]; then
git_now='~';
# elif [[ "$git_status" =~ Changes to be committed ]]; then #Changes to be committed
# git_now='*';
# elif [[ "$git_status" =~ Untracked files ]]; then
# git_now="+";
# elif [[ "$git_status" =~ Your branch is up-to-date with ]]; then
# git_now="#";
fi
# echo "${git_now}";
elif [[ "$git_status" = "" ]]; then
git_now="#";
fi
echo "${git_now}"
}
function git_branch {
ref=$(git symbolic-ref HEAD 2> /dev/null) || return;
echo "("${ref#refs/heads/}") ";
}
PS1="[[ 33[1;32m]w[ 33[0m]] [ 33[0m][ 33[1;36m]$(git_branch)[ 33[0;31m]$(parse_git_dirty)[ 33[0m]$ "