Bash and Zsh prompt with Git support

.bash_prompt

# To use, download this file at the root of your home directory, than add :
# . .bash_prompt
# at the end of you .bashrc file

# Colors
LineColor="\e[0;36m"
GitNotOkColor="\e[1;31m"
GitOkColor="\e[0;32m"
RootLineColor=$GitNotOkColor
WorkingDirColor="\e[0;93m"
TimeColor="\e[0;96m"
RvmColor=$WorkingDirColor
RvmGemsetColor=$GitOkColor
HostnameColor=$GitOkColor

# Get the current working dir "home-shortened" (~/dir instead of /home/user/dir)
function getShortWorkingDirectory {
    escaped_home=$(echo $HOME | sed -e 's/[\/&]/\\&/g')
    short_working_directory=$(pwd | sed -e "s/$escaped_home/~/g")
    echo $short_working_directory
}

if [[ $(type -t __git_ps1) == "" ]]; then
  function __git_ps1 {
    local b="$(git symbolic-ref HEAD 2>/dev/null)";
    if [ -n "$b" ]; then
        printf " (%s)" "${b##refs/heads/}";
    fi
  }
fi

# Get the current Git branch without parenthesis
function getGitBranch {
    echo $(__git_ps1 "%s")
}

# Get the current Git status
#   ok = Current Git branch is clean
#   nok = Current Git branch is dirty
#   notgit = Not in a git repository
function getGitStatus {

    if [[ $(getGitBranch) != "" ]]; then
        git status | grep "nothing to commit" > /dev/null 2>&1
        if [[ $? -eq 0 ]]; then
            echo "ok"
        else
            echo "nok"
        fi
    else
        echo "nogit"
    fi
}

# Build the prompt
function gitPrompt {
    dir=$(getShortWorkingDirectory)
    branch=$(getGitBranch)
    status=$(getGitStatus)
    time=$(date +%H:%M:%S)
    hostname=$(hostname)
    before="───┤ "
    after=" ├───"
    if [[ $(type -t rvm-prompt) != "" ]]; then
	    rvm=$(rvm-prompt v)
	    rvm_gemset=$(rvm-prompt g)
    fi

    # Change the line color if logged as root (sudo)
    if [[ $(whoami) == "root" ]]; then
        LineColor=$RootLineColor
    fi

    prompt="┌$before$hostname$after$before$time$after"
    colored_prompt="$LineColor┌$before$HostnameColor$hostname$LineColor$after$before$TimeColor$time$LineColor$after"

    if [[ $status != "nogit" ]]; then

        # We are in a git repository

        prompt="$prompt$before"
        colored_prompt="$colored_prompt$before"

        if [[ $status == "ok" ]]; then

            # The current branch is clean

            prompt="$prompt ✓ $branch"
            colored_prompt="$colored_prompt $GitOkColor✓ $branch"
        else

            # The current branch is dirty
            prompt="$prompt ✕ $branch"
            colored_prompt="$colored_prompt $GitNotOkColor✕ $branch"
        fi
        prompt="$prompt$after"
        colored_prompt="$colored_prompt$LineColor$after"
    fi

    prompt="$prompt$before$dir$after"
    colored_prompt="$colored_prompt$before$WorkingDirColor$dir$LineColor$after"

    if [[ $rvm != "" ]]; then
        prompt="$prompt$before$rvm$rvm_gemset$after"
        colored_prompt="$colored_prompt$before$RvmColor$rvm$RvmGemsetColor$rvm_gemset$LineColor$after"
    fi

    # Counting the length of the generated prompt
    length=$(echo $prompt | wc -m)

    # Compute the length difference between total columns, and prompt length
    let fill_count=$COLUMNS-$length
    # Right pad the prompt to fill the screen width
    while [[ $fill_count -gt 0 ]]; do
        prompt="$prompt─"
        colored_prompt="$colored_prompt─"
        let fill_count=$fill_count-1
    done

    # Insert a new line before the prompt, for more clarity
    echo ""
    echo -e $colored_prompt
    echo -ne "└──▶ "
}

# Replace the current prompt
export PS1="\$(gitPrompt)"

byscripts.zsh-theme

fillme(){
	wdir_length=${#${PWD/#$HOME/"~"}}
	gpi=$(git_prompt_info_reverse)
	local zero='%([BSUbfksu]|([FB]|){*})'
	local gpi_length=${#${(S%%)gpi//$~zero/}}

	let length=$COLUMNS-$wdir_length-$gpi_length-32

	local fill=""
	while [[ $length -gt 0 ]]; do
	    fill="$fill─"
	    let length=$length-1
	done
	echo $fill
}

PROMPT=$'\
%{$fg[cyan]%}┌───┤%{$fg[white]%} %D{%H:%M:%S} %{$fg[cyan]%}├──────┤ %{$fg[yellow]%}%~%{$fg[cyan]%} ├───$(git_prompt_info_reverse)───$(fillme)\
└──▶ %{$reset_color%} '
PROMPT2="  %{$fg[cyan]%}┈▶%{$reset_color%} "

ZSH_THEME_GIT_PROMPT_PREFIX="───┤ "
ZSH_THEME_GIT_PROMPT_SUFFIX="%{$fg_no_bold[cyan]%} ├───"
ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg_bold[red]%}✕ "
ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg_bold[green]%}✓ "