mercurial bash prompt

mercurial_prompt.sh

# Mercurial
__hg_ps1 () {
    local HG_PROMPT=$(hg prompt "{branch}:{status}:{update}:{count}:{node|short}" 2>/dev/null)
    local HG_ARRAY=()
    local PRINTF_FORMAT="$1"
         
    if [ ! -z "$HG_PROMPT" ]; then                                                                                     
        IFS=':' read -ra HG_OPTIONS <<< "$HG_PROMPT"
        for HG_OPTION in "${HG_OPTIONS[@]}"; do
            if [[ "$HG_OPTION" != "" ]]; then
                HG_ARRAY+=($HG_OPTION)
            fi  
        done
        local FINAL_HG_PROMPT=$(IFS=: ; echo "${HG_ARRAY[*]}")
        
        printf -- "$PRINTF_FORMAT" "$FINAL_HG_PROMPT"
    fi                              
}                                   
   
export PS1='[\u@\h \W$(__git_ps1 " \[\e[0;36m\](%s)\[\e[0m\]")$(__hg_ps1 " \[\e[0;36m\](%s)\[\e[0m\]")]# '