Configuração de bash

.bashrc

##############################################################################################################
# Configuração bash
#
# Adaptadas de:
# https://plus.google.com/u/0/114896277363762090056/posts/SiB4um66RtL
# http://pastebin.com/MzYSzLGy
##############################################################################################################

if [ -f /etc/bash_completion ]; then
    source /etc/bash_completion
fi
 
 
bold=$(tput -Txterm bold)
reset=$(tput -Txterm sgr0)
black=$(tput -Txterm setaf 0)
white=$(tput -Txterm setaf 7)
yellow=$(tput -Txterm setaf 3)
green=$(tput -Txterm setaf 2)
red=$(tput -Txterm setaf 1)
lt_blue=$(tput -Txterm setaf 6)
 
 
__has_parent_dir () {
    # Utility function so we can test for things like .git/.hg without firing up a separate process
    test -d "$1" && return 0;
 
    current="."
    while [ ! "$current" -ef "$current/.."  ]; do
        if [ -d "$current/$1"  ]; then
            return 0;
        fi
 
        current="$current/..";
    done
 
    return 1;
}
 
 
 
__vcs_name() {
    if [ -d .svn  ]; then
        echo "$white($yellow svn $white)";
    elif __has_parent_dir ".git"; then
        echo "$white($yellow$(__git_ps1 '%s')$(__git_state)$bold$white)";
    elif __has_parent_dir ".hg"; then
        echo "$white($yellow$(hg branch)$white)"
    fi
}
 


__git_state() {
    local git_status=
    local git_status_exit=255

    git_status=$(git -c color.status=false status --short --branch 2>/dev/null)
    git_status_exit=$?

    if [ $git_status_exit -eq 0 ] ; then
        local bits=''

        bits="${bits}$(__git_state_by_type "$git_status" '^ ?M' '±')"      # modified files
        bits="${bits}$(__git_state_by_type "$git_status" '^ ?\?' ' ?')"     # untracked files
        bits="${bits}$(__git_state_by_type "$git_status" '^ ?A' ' *')"      # new/added files
        bits="${bits}$(__git_state_by_type "$git_status" '^ ?R' ' >')"      # renamed files
        bits="${bits}$(__git_state_by_type "$git_status" '^ ?D' ' ⚡')"      # deleted files
        bits="${bits}$(__git_state_by_type "$git_status" ' \[ahead ' ' +')" # ahead of origin

        local glutter=''
        if [ -n "$bits" ] ; then
            glutter="$reset$red|$reset"
        fi

        case "$TERM" in
            *term | xterm-* | rxvt | screen | screen-*)
                bits="$lt_blue$bold$bits$reset"
            ;;
        esac

        printf "%b" "${glutter}${bits}$reset"
    fi 
}



__git_state_by_type() {
    local git_status=$1 #git_status
    local exp=$2        #regex
    local symbol=$3     #symbol
    local ret
    local count_files

    count_files=$(echo -n "$git_status" | egrep -c "${exp}")
    printf "$git_status" | egrep -q "${exp}" && ret="${symbol}${count_files}"  

    printf "%b" "${ret}"
}
 
 
PS1='\342\224\214\[$bold\]\[$black\] \[$green\]\u\[$black\]@\[$green\]\h\[$white\] \342\236\236 \[$lt_blue\]\w\[$black\] \[$yellow\]$(__vcs_name) \[\033[00m\]\[$reset\]\n\342\206\263\[$reset\] '