Code for your .bashrc file. Show current git branch on bash shell prompt....with color! (This was copied and modified from similar code you can find out there on the 'tubes.)

show-git-branch-in-bash-prompt

# Colors for the prompt
blue="\033[0;34m"
white="\033[0;37m"
green="\033[0;32m"

# Brackets needed around non-printable characters in PS1
ps1_blue='\['"$blue"'\]'
ps1_green='\['"$green"'\]'
ps1_white='\['"$white"'\]'

parse_git_branch() {
    gitstatus=`git status 2> /dev/null`
    if [[ `echo $gitstatus | grep "Changes to be committed"` != "" ]]
    then
        git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1***)/'
    elif [[ `echo $gitstatus | grep "Changes not staged for commit"` != "" ]]
    then
        git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1**)/'
    elif [[ `echo $gitstatus | grep "Untracked"` != "" ]]
    then
        git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1*)/'
    elif [[ `echo $gitstatus | grep "nothing to commit"` != "" ]]
    then
        git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
    else
        git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1?)/'
    fi
}

# Echo a non-printing color character depending on whether or not the current git branch is the master    
# Does NOT print the branch name                                                                          
# Use the parse_git_branch() function for that.                                                           
parse_git_branch_color() {
    br=$(parse_git_branch)
    if [[ $br == "(master)" || $br == "(master*)" || $br == "(master**)" || $br == "(master***)" ]]; then
        echo -e "${blue}"
    else
        echo -e "${green}"
    fi
}

# No color:
#export PS1="@\h:\W\$(parse_git_branch) \$ "

# With color:
export PS1="$ps1_blue@\h:$ps1_white\W\[\$(parse_git_branch_color)\]\$(parse_git_branch) $ps1_blue\$$ps1_white "