# -*-Shell-script-*-

#########################################################################
# This program is free software: you can redistribute it and/or modify  #
# it under the terms of the version 3 of the GNU General Public License #
# as published by the Free Software Foundation.                         #
#                                                                       #
# This program is distributed in the hope that it will be useful, but   #
# WITHOUT ANY WARRANTY; without even the implied warranty of            #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      #
# General Public License for more details.                              #
#                                                                       #
# You should have received a copy of the GNU General Public License     #
# along with this program. If not, see <http://www.gnu.org/licenses/>.  #
#                                                                       #
# Written by and Copyright (C) Francois Fleuret                         #
# Contact <francois@fleuret.org> for comments & bug reports             #
#########################################################################

# The site-specific and confidential settings are in another file

PRIVATE_BASHRC="${HOME}/private/bashrc.perso"

# If the MANPATH is not set, set it

[ "${MANPATH}" ] || MANPATH=$(manpath)

# If the private bashrc exists, execute it

[ -f "${PRIVATE_BASHRC}" ] && source "${PRIVATE_BASHRC}"

# !!! THIS HAS TO BE HERE EVEN IN THE NON-INTERACTIVE PART OR YOU WILL
# LOSE YOU PREVIOUS HISTORY !!!

export HISTFILESIZE=20000
export HISTSIZE=${HISTFILESIZE}

export HISTIGNORE="${HISTIGNORE}:&:[ ]*"

# I want to save the command time, but I do not want to see it in
# history

export HISTTIMEFORMAT=""

shopt -s histappend

# I realized that most of my settings are meaningful only in
# interactive mode. This should maybe be done more properly through
# using different .bash_profile and .bash_login

[ ${TERM} == "dumb" ] || [ ! -t 0 ] && return

# Remove the annoying beeps in console

setterm -blength 0

######################################################################
## The interactive part

export VT_RESET=$'\e[0m'
export VT_BOLD=$'\e[1m'
export VT_UNDERLINE=$'\e[4m'
export VT_BLINK=$'\e[5m'

export VT_SET_TITLE=$'\e]0;'
export VT_END_TITLE=$'\007'

export VT_BLACK_FG=$'\e[30m'
export VT_RED_FG=$'\e[31m'
export VT_GREEN_FG=$'\e[32m'
export VT_YELLOW_FG=$'\e[33m'
export VT_BLUE_FG=$'\e[34m'
export VT_MAGENTA_FG=$'\e[35m'
export VT_CYAN_FG=$'\e[36m'
export VT_WHITE_FG=$'\e[37m'

export VT_BLACK_BG=$'\e[40m'
export VT_RED_BG=$'\e[41m'
export VT_GREEN_BG=$'\e[42m'
export VT_YELLOW_BG=$'\e[43m'
export VT_BLUE_BG=$'\e[44m'
export VT_MAGENTA_BG=$'\e[45m'
export VT_CYAN_BG=$'\e[46m'
export VT_WHITE_BG=$'\e[47m'

# Colorize man pages!

export LESS_TERMCAP_us=${VT_GREEN_FG}
export LESS_TERMCAP_ue=${VT_RESET}
export LESS_TERMCAP_md=${VT_BLUE_FG}${VT_BOLD}
export LESS_TERMCAP_me=${VT_RESET}

# export LESS_TERMCAP_md=$'\e[1;34;40m'

# This prevents ^S from freezing the shell

# stty -ixon

ulimit -c unlimited

alias ..='cd ..'
alias -- -='cd -'
alias rm='rm -i'
alias mv='mv -i'
# alias chmod='chmod -v'
alias chmod='chmod -c'
alias cp='cp -i -v'
alias rd=rmdir
alias md='mkdir -pv'
alias ps='ps uxaf'
alias df='df -hT'
# alias df='df -hT --sync'
alias grep='grep -i -E --color=auto'
alias find='ionice -c3 find'
alias pd=pushd
alias val='valgrind --leak-check=full --show-reachable=yes --db-attach=yes '

alias s='screen -d -R -U && clear'

function nh () {
    export HISTFILE=/dev/null
    unalias cd
}

function ding () {
    if [ $1 ] && which winshepherd.sh; then
        play -q ~/local/sounds/deskbell.wav &
        unset E_APP_WINDOW
        winshepherd.sh message green "$1"
    else
        play -q ~/local/sounds/deskbell.wav
    fi
}

alias impressive="impressive -s -D 1000 -t Crossfade -T 100"

if [ -e "${HOME}/.dircolors" ]; then
    eval $(dircolors "${HOME}/.dircolors")
    alias ls='ls -p --group-directories-first --color'
    alias lt='ls -p --color -gohtr --time-style="+%Y %b %d %H:%M"'
    alias ll='ls -p --color -goh --time-style="+%Y %b %d %H:%M"'
    alias lll='ls -p --color -lth'
    alias l='ls -p --color -I "*~" -I "*.o"'
    alias less='less -R'
else
    alias ls='ls -p --group-directories-first'
    alias lt='ls -p -gohtr --time-style="+%Y %b %d %H:%M"'
    alias ll='ls -p -goh --time-style="+%Y %b %d %H:%M"'
    alias lll='ls -p -lth'
    alias l='ls -p -I "*~" -I "*.o"'
fi

export EDITOR=emacsclient
export GIT_EDITOR=${EDITOR}

######################################################################
# Ignored extensions when completing

# export FIGNORE="CVS"

function latexdiff () {
    wdiff -n \
        -w $'\033[30;41m' -x $'\033[0m' \
        -y $'\033[30;42m' -z $'\033[0m' \
        $*
}

# Looks for the most recent .log and pdflatex + bibtex the
# corresponding tex file

function rl () {
    RECENT_LOG=$(ls -t $(find -maxdepth 1 -name "*.log" -type f) | head -1)

    if [ ${RECENT_LOG} ]; then
        FILEBASE="${RECENT_LOG/.log/}"

        if [ -f "${FILEBASE}.tex" ]; then

            pdflatex "${FILEBASE}"
            bibtex "${FILEBASE}"
            pdflatex "${FILEBASE}"
            pdflatex "${FILEBASE}"

            if [ "$1" ]; then
                if [ "$1" == "-v" ] || [ "$1" == "--view" ]; then
                    xpdf "${FILEBASE}.pdf"
                elif [ "$1" == "-p" ] || [ "$1" == "--print" ]; then
                    lpr "${FILEBASE}.pdf"
                else
                    echo "Usage: rl [-v|--view] [-p|--print]" >&2
                    echo "Unknown option $1" >&2
                    return 1
                fi
            fi

        else

            echo "Can not find a tex file corresponding to the most recent log (${RECENT_LOG/.log/})." >&2
            return 1

        fi

    else
        echo "Can not find a recent log." >&2
        return 1
    fi
}


######################################################################
# Functions

# http://www.reddit.com/r/linux/comments/2cgu5k/a_handy_little_script_for_interacting_with_your/
function clip () {
    if [ -t 0 ] && [ -z "$1" ]; then
        # output contents of clipboard
        xclip -out -selection clipboard || exit 1
    elif [ "$1" ]; then
        # copy file contents to clipboard
        xclip -in -selection clipboard < "$1" || exit 1
    else
        # copy stdin to clipboard
        xclip -in -selection clipboard <&0 || exit 1
    fi
}

# Find a file whose name contains a substring

function fn () {
    name=$1
    shift
    find "$@" -name "*${name}*";
}

function bak () {
    while [ "$1" ]; do
        cp "$1" "$1".bak
        shift
    done
}

function ua () {

    [ "$1" ] || ( echo "Universal unarchive: ua <file> [<file> ...]" >&2 && return 1)

    while [ "$1" ]; do

        case "$1" in
            *.tgz|*.tar.gz|*.tbz|*.tar.bz2)
                tar xvf "$1"
                ;;

            *.rar)
                unrar -kb x "$1"
                ;;

            *.zip)
                unzip "$1"
                ;;

            *)
                echo "Unknown file extension $1"
                ;;
        esac

        shift

    done
}

# Create a dir and cd there

function mcd () {
    mkdir -vp "$1"
    cd "$1"
}

# Capture the screen in a dated png

function cap () {
    if [ $2 ]; then
        name=$2
    else
        name="capture-$(date +%s).png"
    fi
    echo "Waiting $1 s and saving to ${name}."
    [ "$1" ] && sleep "$1"
    echo "Please click on the window to capture."
    xwd  | convert - ${name}
    \ls -l ${name}
}

# Create and CD in a /tmp/tmp.XXXXXX directory. With the '-'
# arguments, do not create one and CD in the most recent instead

function cdt () {
    if [ "$1" ]; then
        if [ "$1" == "-" ]; then
            cd $(\ls -td /tmp/tmp.?????? | head -1)
        else
            echo "USAGE: cdt [-]" >&2
            return 1
        fi
    else
        dir=$(mktemp -d /tmp/tmp.XXXXXX)
        link=/tmp/tmp
        if [ -h ${link} ]; then
            \rm ${link}
        fi
        if [ ! -a ${link} ]; then
            ln -s ${dir} ${link}
        fi
        cd ${dir}
    fi
}

alias t='cd /tmp'

function trash () {
    TRASH=$(date +/tmp/trash-%Y-%b-%d-%Hh)
    LINK=/tmp/trash

    mkdir -p ${TRASH}

    [ -h ${LINK} ] && \rm ${LINK}

    [ ! -f ${LINK} ] && ln -s ${TRASH} ${LINK}

    mv "$@" ${TRASH}
    echo "Trashed $@"
}

######################################################################
## A version of pho which stores the image numbers in environment
## variables

function pho () {
    TEMP=$(mktemp /tmp/pho.XXXXXXX)
    $(which pho) "$@" | tee ${TEMP}
    PHO_NOTE_1=$(grep ^"Note 1: " ${TEMP} | sed -e "s/^[^:]*: //")
    PHO_NOTE_2=$(grep ^"Note 2: " ${TEMP} | sed -e "s/^[^:]*: //")
    PHO_NOTE_3=$(grep ^"Note 3: " ${TEMP} | sed -e "s/^[^:]*: //")
    PHO_NOTE_R90=$(grep ^"Rotate 90 \(CW\): " ${TEMP} | sed -e "s/^[^:]*: //")
    PHO_NOTE_R180=$(grep ^"Rotate 180: " ${TEMP} | sed -e "s/^[^:]*: //")
    PHO_NOTE_R270=$(grep ^"Rotate -90 \(CCW\): " ${TEMP} | sed -e "s/^[^:]*: //")
    [ "${PHO_NOTE_1}" ] || unset PHO_NOTE_1
    [ "${PHO_NOTE_2}" ] || unset PHO_NOTE_2
    [ "${PHO_NOTE_3}" ] || unset PHO_NOTE_3
    [ "${PHO_NOTE_R90}" ] || unset PHO_NOTE_R90
    [ "${PHO_NOTE_R180}" ] || unset PHO_NOTE_R180
    [ "${PHO_NOTE_R270}" ] || unset PHO_NOTE_R270
    \rm ${TEMP}
}

######################################################################
## A version of date that shows the time at home if TZ is set

function dt () {
    echo "Local: $(date)"
    if [ ${TZ} ]; then
        unset TZ
        echo "Home:  $(date)"
    fi
}

######################################################################
## ifup / ifdown with sudo and memorization of the network

## When invoked without an argument netup uses the same argument as
## the previous time

## When invoked without an argument netdown removes the last interface
## which was netuped

[ ${NETUP_HISTORY} ] || NETUP_HISTORY="${HOME}/.netup_history"

function netup () {
    local upped_wifi

    [ "${WIFI_INTERFACE}" ] || WIFI_INTERFACE=wlan0

    if [ "$1" == "--scan" ]; then
        if ifconfig -s | grep -v -q ${WIFI_INTERFACE}; then
            sudo ifconfig ${WIFI_INTERFACE} up
            upped_wifi=1
        fi

        sudo iwlist ${WIFI_INTERFACE} scan | \grep -E 'ESS|Quali|Encry' | sed -e 's/^[ \t]*//'

        if [ ${upped_wifi} ]; then
            sudo ifconfig ${WIFI_INTERFACE} down
            unset upped_wifi
        fi

        return 0
    fi

    if \ifconfig -s | grep -q -v ^'(Iface|lo) '; then
        echo "There is/are already interface(s) up." >&2
        return 1
    fi

    if \ps h -C dhclient | grep -q .; then
        echo "There is already a dhcp client running." >&2
        return 1
    fi

    if \ps h -C wpa_supplicant | grep -q .; then
        echo "There is already a wpa_supplicant running." >&2
        return 1
    fi

    if [ ! "$@" ] && [ -s ${NETUP_HISTORY} ]; then
        echo "netup <interface>" >&2
        return 1
        # # If we have no argument and there is a .netup_history, use it
        # ARGS=$(cat ${NETUP_HISTORY})
    else
        # Otherwise uses the given arguments, and store them
        ARGS="$@"
        echo ${ARGS} > ${NETUP_HISTORY}
    fi

    if [ "${PRIVATE_INTERFACE_DEFINITION}" ]; then
        ARGS="-i ${PRIVATE_INTERFACE_DEFINITION} ${ARGS}"
    fi

    echo "Executing ${VT_GREEN_FG}[sudo ifup ${ARGS}]${VT_RESET}"
    sudo ifup ${ARGS}

    # Ugly hack to remove the dsl modem dns server when we add
    # explicitely a dns in the /etc/network/interfaces

    REMOVE_LOCAL_DNS=/usr/local/bin/remove-local-dns.sh
    # REMOVE_LOCAL_DNS=${HOME}/sources/scripts/remove-local-dns.sh

    if [ -x ${REMOVE_LOCAL_DNS} ]; then
        echo "Executing ${VT_GREEN_FG}[sudo ${REMOVE_LOCAL_DNS} 192.168]${VT_RESET}"
        sudo ${REMOVE_LOCAL_DNS} 192.168
    fi
}

function netdown () {
    if [ ! "$@" ] && [ -s ${NETUP_HISTORY} ]; then
        # If there are no arguments and there is a .netup_history, get the
        # interface from it
        ARGS=$(tail -1 ${NETUP_HISTORY} | sed -e "s/=.*$//")
    else
        # Otherwise, use the standard ifdown
        ARGS="$@"
    fi

    [ "${PRIVATE_INTERFACE_DEFINITION}" ] && ARGS="-i ${PRIVATE_INTERFACE_DEFINITION} ${ARGS}"

    echo "Executing sudo ${VT_GREEN_FG}[ifdown ${ARGS}]${VT_RESET}"
    sudo ifdown ${ARGS}

    # if [[ $(\ps -C dhclient | tail -n +2) ]]; then
    # echo "There is still a dhcp client running." >&2
    # return 1
    # fi

    # if [[ $(\ps -C wpa_supplicant | tail -n +2) ]]; then
    # echo "There is still a wpa_supplicant running." >&2
    # return 1
    # fi
}

function checkgw () {
    GW=$(route -n | grep ^0.0.0.0 | awk '{print $2}')
    if [ "${GW}" ]; then
        ping ${GW}
    else
        echo "Can not find a getaway." >&2
        return 1
    fi
}

######################################################################
# Show the most recent files, no scroll

function lr () {
    HEIGHT=$(stty size | awk '{print $1}')
    WIDTH=$(stty size | awk '{print $2}')
    \ls -goth --time-style="+%Y %b %d %H:%M" "$@" | \
        head -$((HEIGHT-2)) | \
        cut -b1-${WIDTH}
}

######################################################################
# You can change the xterm background color on the fly!

function setxtermbg () {
    echo -n $'\e]11;'$1$'\007'
}

######################################################################
# Shuffle the lines from the stdin

function shuffle () {
    SEED=$1
    [ $SEED ] || SEED=0
    awk 'BEGIN{srand('${SEED}')} { print rand()" "$0 }' | sort -g | sed -e "s/^[0-9\.e\-]* //"
}

######################################################################
# Stores the last entered command into a file

KEPT_COMMANDS=${HOME}/.kept_bash_commands

function keep () {
    if [ ${KEPT_COMMANDS} ]; then
        TOKEEP=$(mktemp /tmp/keep.XXXXXX)
        if [ "$*" ]; then
            echo "$*" > ${TOKEEP}
        else
            selector -b -i -d -l ${HISTSIZE} -o "${TOKEEP}" <(history)
        fi

        if [ -s "${TOKEEP}" ]; then
            echo $(date)": "$(cat ${TOKEEP}) >> ${KEPT_COMMANDS}
            cat "${TOKEEP}"
        else
            echo "No command stored!"
        fi

        \rm ${TOKEEP}
    else
        echo "You have to set \$KEPT_COMMANDS"
    fi
}

######################################################################
# I sometime burn CDs and DVDs

function burn () {
    DEVICE="/dev/cdrw1"
    if [ ! "$1" ]; then
        echo "burn <iso name | dirname>" >&2
    elif [ -f "$1" ]; then
        if [[ $(file "$1" | \grep -E 'ISO 9660|UDF filesystem data') ]]; then
            wodim -eject -v dev=${DEVICE} "$1"
        else
            echo "Do not know what to do with $1" >&2
        fi
    elif [ -d "$1" ]; then
        [ "${TMP_ROOT}" ] || TMP_ROOT=/tmp/
        echo "Using ${TMP_ROOT} as temporary directory."
        TMP=$(mktemp ${TMP_ROOT}/cdimage.XXXXXX) && \
            genisoimage -input-charset iso8859-1 -r -o ${TMP} "$1" && \
            wodim -eject -v dev=${DEVICE} ${TMP}
        rm -f ${TMP}
    else
        echo "Can not find $1" >&2
    fi
}

######################################################################
# And watch DVDs too!

function dvd () {

    echo
    echo " ! @   Seek to the beginning of the previous/next chapter"
    echo " j     Cycle through the available subtitles"
    echo " o     Show/hide the timing"
    echo " x z   Subtitle delay"
    echo " / *   Volume"
    echo

    if [ "$1" ]; then
        dvd_device="$1"
        shift
    else
        dvd_device="/dev/dvd"
    fi

    title="1"

    if [ "$1" ]; then
        title=$1
        shift
    fi

    # -vc ffmpeg12 -vf yadif

    mplayer > /dev/null \
        -stop-xscreensaver \
        -quiet \
        -alang en -slang en \
        -softvol -softvol-max 1000 \
        -dvd-device ${dvd_device} ${MPLAYER_OPTIONS} dvd://${title}
}

function ripdvd () {
    if [ -e "/dev/dvd" ]; then
        DVD_DEVICE="/dev/dvd"
    elif [ -e "/dev/dvd3" ]; then
        DVD_DEVICE="/dev/dvd3"
    else
        echo "Can not find the dvd device." >&2
        return 1
    fi

    echo "Attemptin to rip from ${DVD_DEVICE}."

    mkdir -p ${HOME}/dvds

    cd ${HOME}/dvds
    time dvdbackup -i ${DVD_DEVICE} -v -M $* && eject
}

alias ripcd=abcde

######################################################################
# Create small images from images

function mksmall () {

    PARAMS="-geometry 800x600"

    # Auto-orient does not seem to work at all, hence the ugly hack
    # with exif below

    # PARAMS="-auto-orient -geometry 800x600"

    echo "Using ${PARAMS}"

    DEST_DIR=$1

    [ ${DEST_DIR} ] || DEST_DIR=./small

    mkdir -p ${DEST_DIR}

    if [ ! -d ${DEST_DIR} ]; then
        echo "Can not create ${DEST_DIR}" >&2
        return
    fi

    NB_TOTAL=$(find -maxdepth 1 -type f | wc -l)
    NB=0

    for i in $(find -maxdepth 1 -type f); do
        if [[ $(file $i | grep image) ]]; then
            if [ -e ${DEST_DIR}/$i ]; then
                echo "The file ${DEST_DIR}/$i already exists."
            else
                if [[ $(file ${i/%.*/}.* | grep -E movie) ]] ; then
                    CAPTION_PARAMS="-font FreeSans-Bold -pointsize 32 -fill green -annotate +10+32 Video"
                else
                    CAPTION_PARAMS=""
                fi

                convert ${rotation_cmd} $i ${PARAMS} ${CAPTION_PARAMS} ${DEST_DIR}/$i
            fi

            \ls -lt ${DEST_DIR}/$i
        fi

        NB=$((NB+1))

        echo "$((NB*100/NB_TOTAL))% (${NB}/${NB_TOTAL})"
    done
}

######################################################################
# Move a file to the ~/sources/config directory and replace it where
# it was by a symbolic link

function mvtoconfig () {
    CONFIGDIR=${HOME}/sources/config
    if [[ -d ${CONFIGDIR} ]]; then
        NEWNAME=${CONFIGDIR}/$(basename "$1" | sed -e "s/^\.//")
        mv "$1" $NEWNAME
        ln -s $NEWNAME $1
    else
        echo "Can not find ${CONFIGDIR}"
    fi
}

######################################################################
# The complex prompt policy

export PS1

if [ "${CONSOLE}" == "yes" ]; then
    PS1=""
else

    # If the login is a standard one (as specified in
    # IGNORED_PROMPT_LOGIN, which is set in the private bash file), do not
    # show it. I have IGNORED_PROMPT_LOGIN="^fleuret$".

    if [ ! ${IGNORED_PROMPT_LOGIN} ] || [[ ! ${USER} =~ ${IGNORED_PROMPT_LOGIN} ]]; then
        IDENT="${USER}"
    fi

    # If the display is not the main one, make the assumption that the
    # shell is not running on the localhost, and show the hostname

    [ "${DISPLAY}" != ":0.0" ] && IDENT="${IDENT}@\h"

    # If there is the login or the hostname, add a ":" to the prompt

    [ "${IDENT}" ] && IDENT="${IDENT}:"

    # If we are root, show that in red

    if [[ ${USER} == "root" ]]; then
        PS1="\[${VT_RED_BG}${VT_WHITE_FG}\]${IDENT}\w\[${VT_RESET}\] "
    else
        PS1="\[${VT_WHITE_BG}${VT_BLACK_FG}\]${IDENT}\w\[${VT_RESET}\] "
    fi

    # In an xterm, show the hostname and path in the title bar, highlight
    # the prompt

    # [ "${TERMS_WITH_BAR}" ] || TERMS_WITH_BAR="^xterm|screen$"

    # if [[ "${TERM}" =~ "${TERMS_WITH_BAR}" ]]; then
    # PS1="\[${VT_SET_TITLE}shell@\h (\w)${VT_END_TITLE}${VT_WHITE_BG}\]${IDENT}\w\[${VT_RESET}\] "
    # else
    # PS1="\[${VT_WHITE_BG}\]${IDENT}\w\[${VT_RESET}\] "
    # fi

fi

######################################################################
# This implements a local history. If we are in a directory containing
# a writable local history file, we add the last line of the global
# history to it.

LOCAL_HISTORY_FILE=".local_bash_history"

function keep_local_history () {
    if [[ -w "${LOCAL_HISTORY_FILE}" ]]; then
        history 1 | sed -e 's/^ *[0-9]* *//' >> ${LOCAL_HISTORY_FILE}
        TMP=$(mktemp /tmp/lh.XXXXXX)
        \chmod 600 ${TMP}
        uniq < ${LOCAL_HISTORY_FILE} | tail -${HISTSIZE} > ${TMP}
        # mv would replace a symbolic link, while cp keeps it
        \cp ${TMP} ${LOCAL_HISTORY_FILE}
        \rm ${TMP}
        LOCAL_HISTORY_HINT="* "
    else
        LOCAL_HISTORY_HINT=""
    fi
}

PS1="\[${VT_WHITE_BG}\]\${LOCAL_HISTORY_HINT}\[${VT_RESET}\]${PS1}"

######################################################################
# Switch off the history

function histfile_cue () {
    if [[ ! "${HISTFILE}" == "${HOME}/.bash_history" ]]; then
        HISTORY_CUE="[${HISTFILE}]"
    else
        HISTORY_CUE=""
    fi
}

PS1="\[${VT_YELLOW_BG}\]\${HISTORY_CUE}\[${VT_RESET}\]${PS1}"

######################################################################
# The dus command is available on my web site
#
# git clone http://fleuret.org/git/dus/

alias dus='dus -f -i'

######################################################################
# The finddup command is available on my web site
#
# git clone http://fleuret.org/git/finddup/

alias finddup='finddup -p'

######################################################################
# The selector command is available on my web site
#
# git clone http://fleuret.org/git/selector/

source bash-selector.sh --hist --cd

######################################################################
# And we avoid to put in the history the use of the selector, which we
# do too often

HISTIGNORE="${HISTIGNORE}:selector-history"

######################################################################

function selector-printer () {
    TMP=$(mktemp /tmp/selector-printer.XXXXXX)
    selector -o ${TMP} <(lpstat -a | awk '{print $1}')
    export PRINTER=$(cat ${TMP})
    echo "PRINTER=${PRINTER}"
    rm -f ${TMP}
    lpq
}

######################################################################
# A ls with memory to notice what files have been added/removed from
# the current directory

function lsn () {
    LSN_MEMORY=".lsn-state"

    if  [[ $1 == "--mem" ]] || [[ "$1" == "-m" ]]; then

        \ls -pa | sort > ${LSN_MEMORY}
        echo "State updated." >&2

    elif [[ $1 == "+" ]]; then

        shift

        TMP=$(mktemp /tmp/lsn.XXXXXX)
        \ls -d $* > ${TMP}
        cat ${LSN_MEMORY} >> ${TMP}
        sort -u ${TMP} > ${LSN_MEMORY}
        \rm ${TMP}

    elif [ "$1" ]; then

        echo "lsn [--mem|-m] [+ <file> ...]" >&2
        return 1

    else

        if [[ -f ${LSN_MEMORY} ]]; then
            TMP=$(mktemp /tmp/lsn.XXXXXX)
            \ls -pa | sort > ${TMP}
            if diff > /dev/null ${TMP} ${LSN_MEMORY}; then
                echo "${VT_GREEN_FG}${VT_BOLD}No change (since $(date +"%b %d, %Y" -r ${LSN_MEMORY}))${VT_RESET}"
            else
                \comm -1 -3 ${LSN_MEMORY} ${TMP}
                \comm -2 -3 ${LSN_MEMORY} ${TMP} | while read line; do
                    echo "${VT_RED_FG}${VT_BOLD}${line}${VT_RESET} (missing)"
                done
            fi
            \rm ${TMP}
        else
            echo "No lsn state here." >&2
            return 1
        fi

    fi
}

######################################################################

function prompt_command () {
    # save the history after every command to avoid loosing some when
    # multiple shells are open
    history -a
    # load the saved history
    history -n
    # and the local histories system defined above
    keep_local_history
    # and the history cue
    histfile_cue
}

PROMPT_COMMAND="prompt_command"

######################################################################

# Displaying the timezone if it is set

if [[ ${TZ} ]]; then
    echo "${VT_BOLD}${VT_GREEN_FG}Time zone is ${TZ}.${VT_RESET}"
fi

######################################################################