Krdytkyu

I shortened my bash prompt (using the code at line 120 in my bashrc):

PS1='u:W$ '

Now I wanna add the colored git branch to the shortened prompt, so that when the branch has uncommitted changes, it's shown in red and if the working directory is clean (nothing to commit) then the branch is showed in green.

Thank you!

This Github Gist by srguiwiz shows a prompt with colours based on branch status:

# http://henrik.nyh.se/2008/12/git-dirty-prompt

# http://www.simplisticcomplexity.com/2008/03/13/show-your-git-branch-name-in-your-prompt/

#   username@Machine ~/dev/dir [master]$   # clean working directory green

#   username@Machine ~/dev/dir [master*]$  # dirty working directory red*

#

function git_branch {

  git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e 's/* (.*)/1/'

}

# http://unix.stackexchange.com/questions/88307/escape-sequences-with-echo-e-in-different-shells

function markup_git_branch {

  if [[ "x$1" = "x" ]]; then

    echo -e "[$1]"

  else

    if [[ $(git status 2> /dev/null | tail -n1) = "nothing to commit, working directory clean" ]]; then

      echo -e '33[1;32m['"$1"']33[0;0m'

    else

      echo -e '33[1;31m['"$1"'*]33[0;0m'

    fi

  fi

}

export PS1='u@h [33[0;34m]w[33[0m] $(markup_git_branch $(git_branch))$ '

You only need to use $(markup_git_branch $(git_branch)) in your prompt, wherever you want show the commit status and branch.

There's a slight change to original code here: the 33[0;30m at the end should be 33[0;0m to reset the prompt colour. The former sets it black, the latter resets formatting on the text.

srguiwiz's code seems to have some problems, jcgoble3 made a better version:

# Adds the current branch to the bash prompt when the working directory is

# part of a Git repository. Includes color-coding and indicators to quickly

# indicate the status of working directory.

#

# To use: Copy into ~/.bashrc and tweak if desired.

#

# Based upon the following gists:

# <https://gist.github.com/henrik/31631>

# <https://gist.github.com/srguiwiz/de87bf6355717f0eede5>

# Modified by me, using ideas from comments on those gists.

#

# License: MIT, unless the authors of those two gists object :)



git_branch() {

    # -- Finds and outputs the current branch name by parsing the list of

    #    all branches

    # -- Current branch is identified by an asterisk at the beginning

    # -- If not in a Git repository, error message goes to /dev/null and

    #    no output is produced

    git branch --no-color 2>/dev/null | sed -e '/^[^*]/d' -e 's/* (.*)/1/'

}



git_status() {

    # Outputs a series of indicators based on the status of the

    # working directory:

    # + changes are staged and ready to commit

    # ! unstaged changes are present

    # ? untracked files are present

    # S changes have been stashed

    # P local commits need to be pushed to the remote

    local status="$(git status --porcelain 2>/dev/null)"

    local output=''

    [[ -n $(egrep '^[MADRC]' <<<"$status") ]] && output="$output+"

    [[ -n $(egrep '^.[MD]' <<<"$status") ]] && output="$output!"

    [[ -n $(egrep '^??' <<<"$status") ]] && output="$output?"

    [[ -n $(git stash list) ]] && output="${output}S"

    [[ -n $(git log --branches --not --remotes) ]] && output="${output}P"

    [[ -n $output ]] && output="|$output"  # separate from branch name

    echo $output

}



git_color() {

    # Receives output of git_status as argument; produces appropriate color

    # code based on status of working directory:

    # - White if everything is clean

    # - Green if all changes are staged

    # - Red if there are uncommitted changes with nothing staged

    # - Yellow if there are both staged and unstaged changes

    local staged=$([[ $1 =~ + ]] && echo yes)

    local dirty=$([[ $1 =~ [!?] ]] && echo yes)

    if [[ -n $staged ]] && [[ -n $dirty ]]; then

        echo -e '33[1;33m'  # bold yellow

    elif [[ -n $staged ]]; then

        echo -e '33[1;32m'  # bold green

    elif [[ -n $dirty ]]; then

        echo -e '33[1;31m'  # bold red

    else

        echo -e '33[1;37m'  # bold white

    fi

}



git_prompt() {

    # First, get the branch name...

    local branch=$(git_branch)

    # Empty output? Then we're not in a Git repository, so bypass the rest

    # of the function, producing no output

    if [[ -n $branch ]]; then

        local state=$(git_status)

        local color=$(git_color $state)

        # Now output the actual code to insert the branch and status

        echo -e "x01$colorx02[$branch$state]x0133[00mx02"  # last bit resets color

    fi

}



# Sample prompt declaration based off of the default Ubuntu 14.04.1 color

# prompt. Tweak as you see fit, or just stick "$(git_prompt)" into your

# favorite prompt.

PS1='$debian_chroot[33[01;32m]u@h[33[00m]:[33[01;34m]w$(git_prompt)[33[00m]$ '

I wrote something like this for myself. It relies on __git_ps1 from /usr/lib/git-core/git-sh-prompt, so you may need to source /usr/lib/git-core/git-sh-prompt if your shell isn't already set to do that.

_prompt_git_branch(){

    # Print git branch in color, for use in Bash PS1 or PROMPT_COMMAND.

    #   Red: untracked files

    #   Yellow: unstaged changes

    #   Blue: staged changes

    #   Cyan: nothing to commit, working directory clean



    local bold=1  # Change to 21 for not bold

    local color

    local status



    GIT_PS1_SHOWDIRTYSTATE=1

    GIT_PS1_SHOWSTASHSTATE=1

    GIT_PS1_SHOWUNTRACKEDFILES=1



    status="$(__git_ps1)"



    case $status in

    '')

        # Not in a git repo

        return

        ;;

    *'%'*)

        # Untracked files

        color=1  # red

        ;;

    *'*'*)

        # Unstaged changes

        color=3  # yellow

        ;;

    *'+'*)

        # Staged changes

        color=4  # blue

        ;;

    *)

        # Otherwise

        color=6  # cyan

        ;;

    esac



    printf 'e[%d;3%dm%se[m' "$bold" "$color" "$status"

}

Then for setting the PS1 in the bashrc, I would actually remove line 120 and edit lines 60 and 62 instead.

line 60 (color):

PS1='${debian_chroot:+($debian_chroot)}[e[1;32m]u[e[m]:[e[1;34m]W[e[m]$(_prompt_git_branch)$ '

line 62 (no color):

PS1='${debian_chroot:+($debian_chroot)}u:W$(__git_ps1)$ '