# If not running interactively, don't do anything
case $- in
    *i*) ;;
      *) return;;
esac

# history setup

## append to the history file, don't overwrite it
shopt -s histappend

## no dups+skip space-prefixed commands
HISTCONTROL=ignoreboth
HISTFILE=~/.local/var/bash/history
HISTSIZE=65536

# activate lesspipe
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"

# TODO: split off aliases?
# ls colors
if [ -x /usr/bin/dircolors ]; then
    eval "`dircolors -b`"
    alias ls='ls --color=auto'
fi

alias grep='grep --color=auto'
alias egrep='egrep --color=auto'

# disable flow control
# XXX should this be here?
stty -ixon

unalias ll lt la lh lla llh 2>/dev/null

ll()  { ls -l   "$@"; }
lt()  { ls -lt  "$@"; }
la()  { ls -A   "$@"; }
lh()  { ls -lh  "$@"; }
lla() { ls -lA  "$@"; }
llh() { ls -lAh "$@"; }

# cd upwards a given number of levels
unalias cu 2>/dev/null
cu()
{
    local lvl=$1
    if ! [[ "${lvl}" =~ ^[0-9]+$ ]]; then
        echo "Parameter must be a non-negative integer: ${lvl}"
        return 1
    fi

    local dir=""
    for i in $(seq "${lvl}"); do
        dir=${dir}../
    done

    cd "${dir}"
}

# head/tail shortcut
# e.g. "lt|h" or "h lt"
__ht()
{
    local cmd=$1
    shift

    if [ $# -ne 0 ]; then
        $@ | $cmd
    else
        $cmd
    fi
}

unalias h t 2>/dev/null
h() { __ht "head -32" $@; }
t() { __ht "tail -32" $@; }

# define the prompt
. ~/.config/bash/prompt
PS1=$(__prompt_func)

# set the terminal window title
case "$TERM" in
xterm*|rxvt*)
    PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME}: ${PWD}\007"'
    ;;
*)
    ;;
esac

# source the machine-local configuration
[ -r "$HOME/.config/bash/bashrc_local.bash" ] && . "$HOME/.config/bash/bashrc_local.bash"