Git Aware Bash Prompt

git-aware-bash-prompt.md

In Terminal

mkdir ~/.bash

Copy the raw git-prompt.sh file from git contrib in to the ~/.bash directory: https://github.com/git/git/blob/master/contrib/completion/git-prompt.sh

Inside ~/.bashrc or ~/.bash_profile (choose the file where you normally put any bash customizations/setup), add the lines:

source ~/.bash/git-prompt.sh # Show git branch name at command prompt
export GIT_PS1_SHOWCOLORHINTS=true # Option for git-prompt.sh to show branch name in color

# Terminal Prompt:
# Include git branch, use PROMPT_COMMAND (not PS1) to get color output (see git-prompt.sh for more)
export PROMPT_COMMAND='__git_ps1 "\w" "\n\\\$ "' # Git branch (relies on git-prompt.sh)

As long as you're inside a git repo, your Bash prompt should now show the current git branch in color signifying if its got uncommitted changes.

I've been having fun with this the past few days commute to work...

export GIT_PS1_SHOWDIRTYSTATE=true      # staged '+', unstaged '*'
export GIT_PS1_SHOWUNTRACKEDFILES=true  # '%' untracked files
export GIT_PS1_SHOWUPSTREAM="auto"      # '<' behind, '>' ahead, '<>' diverged, '=' no difference
export GIT_PS1_SHOWSTASHSTATE=true      # '$' something is stashed

function __prompt_command() {
    local ERRORCODE="$?"
    PS1="${debian_chroot:+($debian_chroot)}"

    # Errorcode (conditional)
    if [ ${ERRORCODE} != 0 ]; then
        PS1+="\e[90m    $(echo -e '\u2570\u2500\u2770')\e[1;31m$ERRORCODE\e[90m$(echo -e '\u2771')\e[0m\n"
    fi

    # Main line
    local c="$(echo -e '\u256d\u2500')"
    if [[ "$(dirs -p | wc -l)" != "1" ]] ; then
        local c="$(echo -e '\u2934') "
    fi
    PS1+="\e[90m$c\e[0m"
    if [[ ! -z "${VIRTUAL_ENV}" ]]; then
        PS1+="\e[90m$(echo -e '\u2770')\e[32m$(basename $VIRTUAL_ENV)\e[90m$(echo -e '\u2771')\e[0m"
    fi
    PS1+=" \e[33;1m\w\e[m"
    PS1+="\$(__git_ps1)"

    # Command Line
    PS1+="\n\e[90m$(echo -e '\u2570\u2500\u2bc8') \e[0m"
}

export PROMPT_COMMAND=__prompt_command

results in:

why does this remove my actual directory path along with my virtualenv name, now I am only left with $ in my prompt. any way to fix it?

works great!

Very happy with it!
Thanks!

This has worked well for a while, until recently when it significantly slows down everything - eg, when I "more PATH/TO/any-file", then "q" to quit - the quitting takes 5 seconds!!! Everything starts to take long.
It might not be the issue with this tool itself - but I do not have to have my prompt show me the GIT info. Hence I just disabled it :(