# /etc/bash/bashrc
#
# This file is sourced by all *interactive* bash shells on startup,
# including some apparently interactive shells such as scp and rcp
# that can't tolerate any output.  So make sure this doesn't display
# anything or bad things will happen!

# Return immediately for non-interactive shells (scp, rcp etc.)
if [[ $- != *i* ]] ; then
	# Shell is non-interactive.  Be done now!
	return
fi

# Shell options
shopt -s checkwinsize        # Update window size after each command
shopt -s globstar 2>/dev/null  # Enable ** recursive globbing
shopt -s no_empty_cmd_completion  # Disable completion on empty line

# History settings
shopt -s histappend          # Append to history instead of overwriting
shopt -s cmdhist # Save multi-line commands as one command
PROMPT_COMMAND='history -a'  # Record each line as it gets issued
HISTSIZE=500000
HISTFILESIZE=100000
HISTCONTROL="erasedups:ignoreboth"
export HISTIGNORE="&:[ ]*:exit:ls:bg:fg:history:clear"
HISTTIMEFORMAT='%F %T '
bind '"\e[A": history-search-backward'
bind '"\e[B": history-search-forward'
bind '"\e[C": forward-char'
bind '"\e[D": backward-char'

# Change the window title of X terminals 
case ${TERM} in
	[aEkx]term*|rxvt*|gnome*|konsole*|interix|tmux*)
		PS1='\[\033]0;\u@\h:\w\007\]'
		;;
	screen*)
		PS1='\[\033_\u@\h:\w\033\\\]'
		;;
	*)
		unset PS1
		;;
esac

PROMPT_DIRTRIM=2

# Color support
use_color=false
if type -P dircolors >/dev/null; then
    LS_COLORS=
    if [[ -f ~/.dir_colors ]]; then
        eval "$(dircolors -b ~/.dir_colors)"
    elif [[ -f /etc/DIR_COLORS ]]; then
        eval "$(dircolors -b /etc/DIR_COLORS)"
    else
        eval "$(dircolors -b)"
    fi

    [[ -n ${LS_COLORS:+set} ]] && use_color=true || unset LS_COLORS
else
    case ${TERM} in
        [aEkx]term*|rxvt*|gnome*|konsole*|screen|tmux|cons25|*color)
            use_color=true
            ;;
    esac
fi

if ${use_color}; then
    if [[ ${EUID} == 0 ]]; then
        PS1+='\[\033[01;31m\]\h\[\033[01;34m\] \w \$\[\033[00m\] '  # root
    else
        PS1+='\[\033[01;32m\]\u@\h\[\033[01;34m\] \w \$\[\033[00m\] '  # normal user
    fi

    #BSD#@export CLICOLOR=1
    alias ls='ls --color=auto'
    alias grep='grep --colour=auto'
else
    PS1+='\u@\h \w \$ '
fi

# Additional features
bind Space:magic-space # Enable history expansion with space
bind "set completion-ignore-case on" # Perform file completion in a case insensitive fashion
bind "set completion-map-case on" # Treat hyphens and underscores as equivalent
bind "set show-all-if-ambiguous on" # Display matches for ambiguous patterns at first tab press
bind "set mark-symlinked-directories on" # Immediately add a trailing slash when autocompleting symlinks to directories

# Source additional configs
for sh in /etc/bash/bashrc.d/*; do
    [[ -r ${sh} ]] && source "${sh}"
done

# Try to keep environment pollution down, EPA loves us.
unset use_color sh