Wrapper for viewing movies using vlc

vlc

#!/bin/bash

VLCTMP=/tmp/vlc.out
QUIET=false

log_vlc() {
    echo $(date +%s) "$@" >> ~/.vlc
}

run_vlc() {
    open -a vlc "$@"
}

not_valid_file_name() {
    test -e "$1" && return 1 || return 0
}

size_check() {
    local count=$(tee "$VLCTMP" | wc -l)
    if ((count==0))
    then
        echo "Nothing found" 1>&2
        perl -e "kill -15, $$" # why is Perl being used for this?
    else
        cat "$VLCTMP"
    fi
}

run_selecta() {
    local wanted_file_extensions='\.(mkv|avi|mp4|mov|m4v|wmv)$'
    echo "`find . | grep -i "$1" | egrep -i "${wanted_file_extensions}" | size_check | selecta -a`"
}

die() {
    echo $1
    exit 1
}

rm -f "$VLCTMP"

# -q as first arg to stop the logging of the file being watched.
if [[ $# -gt 0 && "$1" = -q ]]
then
    QUIET=true
    shift
fi
test $# -eq 0 && die "Missing arg(s)"

# arg isn't a file so use selecta to get the user to pick a file
# to display with vlc.
if not_valid_file_name "$1"; then
    # Use find and grep to come up with a list of files for selecta.
    files_for_vlc="$( run_selecta "$1" )"
    test -z "$files_for_vlc" && exit 0 # no files selected.
else # full filename has been given.
    files_for_vlc="$@"
fi

test "$QUIET" = false && log_vlc "$files_for_vlc"
run_vlc "$files_for_vlc"