HISTCONTROL=$HISTCONTROL${HISTCONTROL+:}ignoredups
# ... or force ignoredups and ignorespace
HISTCONTROL=ignoreboth

shopt -s histappend
shopt -s checkwinsize
if [ -f /etc/bash_completion ] && ! shopt -oq posix; then
  . /etc/bash_completion
fi

# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
  test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
  alias ls='ls --color=auto'
  #alias dir='dir --color=auto'
  #alias vdir='vdir --color=auto'
  alias grep='grep --color=auto'
  alias fgrep='fgrep --color=auto'
  alias egrep='egrep --color=auto'
fi

c_reset='\[\033[0;32m\]'
c_user='\[\033[0;37m\]'
c_path='\[\033[0;36m\]'
c_git_clean='\[\033[1;32m\]'
c_git_dirty='\[\033[1;31m\]'

function git_prompt {
  if ! git rev-parse --git-dir > /dev/null 2>&1; then
    echo -en "\[\033]2;${USER}:${PWD/$HOME/~}\007\]"
    return 0
  fi
  git_branch=$(git branch 2>/dev/null| sed -n '/^\*/s/^\* //p')
  if git diff --quiet 2>/dev/null >&2; then
    git_color="${c_git_clean}"
  else
    git_color=${c_git_dirty}
  fi
  echo -en "\[\033]2;GIT: $git_branch\007\]"
  echo " [$git_color$git_branch$c_reset]"
}

function prompt_func() {
  prompt="[${c_user}\u${c_reset}]${c_path}\w${c_reset}$(git_prompt)\$ "
  PS1="${prompt}"
}

PROMPT_COMMAND=prompt_func