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colorful bash prompt with git branch

Edit .bashrc :

export COLOR_NC='\e[0m' # No Color
export COLOR_WHITE='\e[1;37m'
export COLOR_BLACK='\e[0;30m'
export COLOR_BLUE='\e[0;34m'
export COLOR_LIGHT_BLUE='\e[1;34m'
export COLOR_GREEN='\e[0;32m'
export COLOR_LIGHT_GREEN='\e[1;32m'
export COLOR_CYAN='\e[0;36m'
export COLOR_LIGHT_CYAN='\e[1;36m'
export COLOR_RED='\e[0;31m'
export COLOR_LIGHT_RED='\e[1;31m'
export COLOR_PURPLE='\e[0;35m'
export COLOR_LIGHT_PURPLE='\e[1;35m'
export COLOR_BROWN='\e[0;33m'
export COLOR_YELLOW='\e[1;33m'
export COLOR_GRAY='\e[0;30m'
export COLOR_LIGHT_GRAY='\e[0;37m'

function parse_git_dirty {
    [[ $(git status 2> /dev/null | tail -n1) != "nothing to commit, working directory clean" ]] && echo "*"
}
function parse_git_branch {
    git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/[\1$(parse_git_dirty)]/"
}
PS1=""
PS1=$PS1"\[$COLOR_GREEN\]\u@\h\:"                # Display user@host
#PS1=$PS1"\[$Yellow\]\@:"                        # Display time
#PS1=$PS1"\[$Blue\][\[$Cyan\]\d\[$Blue\]] "      # Display date
#PS1=$PS1"\[$Yellow\]\@:"                        # Display time
PS1=$PS1"\[$COLOR_CYAN\]\w"                      # Display pwd
PS1=$PS1"\[$COLOR_BROWN\]"'$(parse_git_branch)'  # Display git-branch
PS1=$PS1"\[$COLOR_NC\]$ "                        # Turn off color and end prompt
export PS1=$PS1  

git auto-completion

wget https://raw.github.com/git/git/master/contrib/completion/git-completion.bash -O ~/.git-completion.bash
source ~/.git-completion.bash