当我在Git分支时，如何让我的iTerm提示以不同的方式显示？

PATH=$PATH:~/Data/Scripts:~/Data/Utils/rar:~/_Applications:~/_Applications/lynx

# alias to quickly show if any Handbrake processes are running
alias hb='sudo ps -aef | grep HandBrakeCLI'

# alias for quick DNS cache flushing
alias fc='sudo dscacheutil -flushcache'

# enable the git bash completion commands
source ~/.git-completion

# enable git unstaged indicators - set to a non-empty value
GIT_PS1_SHOWDIRTYSTATE="."

# enable showing of untracked files - set to a non-empty value
GIT_PS1_SHOWUNTRACKEDFILES="."

# enable stash checking - set to a non-empty value
GIT_PS1_SHOWSTASHSTATE="."

# enable showing of HEAD vs its upstream
GIT_PS1_SHOWUPSTREAM="auto"

BLACK=$(tput setaf 0)
RED=$(tput setaf 1)
GREEN=$(tput setaf 2)
YELLOW=$(tput setaf 3)
LIME_YELLOW=$(tput setaf 190)
POWDER_BLUE=$(tput setaf 153)
BLUE=$(tput setaf 4)
MAGENTA=$(tput setaf 5)
CYAN=$(tput setaf 6)
WHITE=$(tput setaf 7)
BRIGHT=$(tput bold)
NORMAL=$(tput sgr0)
BLINK=$(tput blink)
REVERSE=$(tput smso)
UNDERLINE=$(tput smul)

# set the prompt to show current working directory and git branch name, if it exists

# this prompt is a green username, black @ symbol, cyan host, magenta current working directory and white git branch (only shows if you're in a git branch)
# unstaged and untracked symbols are shown, too (see above)
# this prompt uses the short colour codes defined above
# PS1='${GREEN}u${BLACK}@${CYAN}h:${MAGENTA}w${WHITE}`__git_ps1 " (%s)"`$ '

# this is a cyan username, @ symbol and host, magenta current working directory and white git branch
# it uses the shorter , but visibly more complex, codes for text colours (shorter because the colour code definitions aren't needed)
# PS1='[33[0;36m]u@h[33[01m]:[33[0;35m]w[33[00m][33[1;30m][33[0;37m]`__git_ps1 " (%s)"`[33[00m][33[0;37m]$ '

# return the prompt prefix for the second line
function set_prefix {
    BRANCH=`__git_ps1`
    if [[ -z $BRANCH ]]; then
        echo "${NORMAL}o"
    else
        echo "${UNDERLINE}+"
    fi
}

# and here's one similar to Paul Irish's famous prompt ... not sure if this is the way he does it, but it works  :)
# 33[s = save cursor position
# 33[u = restore cursor position

PS1='${MAGENTA}u${WHITE} in ${GREEN}w${WHITE}${MAGENTA}`__git_ps1 " on %s"`${WHITE}rn`set_prefix`${NORMAL}${CYAN}33[s33[60C (`date "+%a, %b %d"`)33[u${WHITE} '

tput

BLACK=$(tput setaf 0)
RED=$(tput setaf 1)
GREEN=$(tput setaf 2)
YELLOW=$(tput setaf 3)
LIME_YELLOW=$(tput setaf 190)
POWDER_BLUE=$(tput setaf 153)
BLUE=$(tput setaf 4)
MAGENTA=$(tput setaf 5)
CYAN=$(tput setaf 6)
WHITE=$(tput setaf 7)
BRIGHT=$(tput bold)
NORMAL=$(tput sgr0)
BLINK=$(tput blink)
REVERSE=$(tput smso)
UNDERLINE=$(tput smul)

# Set Titlebar and Prompt
TITLEBAR='e]0;h: ${PWD/$HOME/~}a'
PS1="${TITLEBAR}${WHITE}[${POWDER_BLUE}u@h${WHITE}]${NORMAL}$ "

${NORMAL}

~/.bashrc

~/.profile

PS1="u@h:w one[0;35m$(__git_ps1)e[m$ "

$(__git_ps1)

e

[0;35m

e[m

PS1='n[33[0;35m]u[33[0;32m]w[33[0m]$(__git_ps1)n$[33[0m] '

mkdir ~/.bash
cd ~/.bash
git clone git://github.com/jimeh/git-aware-prompt.git

~/.bash_profile

export GITAWAREPROMPT=~/.bash/git-aware-prompt
source "${GITAWAREPROMPT}/main.sh"

~/.bash_profile

export PS1="n[$txtpur]u[$bldwht]@h[$bldgrn]:[$bldblu] w [$txtcyn]$git_branch[$txtred]$git_dirty[$txtrst]$ [$txtwht] "

export SUDO_PS1="[$bakred]u@h[$txtrst] w$ "