rTorrent + XBMC TV Library

In my never ending quest of creating the best home theater solution, i have written a bash script that converts downloaded media into a tv-series library structure. Read the description field of the script for more detailed information.

So in short, this script will turn the following folder structure:

/series/
       tv-show.s09.e10.xxxxx
       tv-show-0609.xxxxx
       tv-show_09x10.xxxxx

into the following:

/series/tv-show/season 06/
                         tv-show-0609.xxxxx
/series/tv-show/season 09/
                         tv-show.s09.e10.xxxxx
                         tv-show_09x10.xxxxx

And here is the script that does all the dirty work.

#!/bin/bash
# Filename:  mv-series
# Author:  Kim Eik
# License:  GPLv3
# Description:  This file is used in conjunction with rtorrent, it takes a
# a single input argument ex. "mythbusters.s01.e09.avi" and
# an optional prefix argument ex "/home/user". With this data
# the script creates the directory:
# "/home/user/Mythbusters/Season 01"
# And also creates the files: 
# "/home/user/Mythbusters/tvshow.nfo"
# and
# "/home/user/Mythbusters/Season 01/mythbusters.s01.e09.nfo"
# which XBMC can read to lookup tv-show information through
# scrapers. In addition the script prints out 
# "/home/user/Mythbuster/Season 01" without new line feed
# at the end. This output is for use with rtorrent, to set the
# new download directory (d.set_directory)

shopt -s nocasematch
filename=$1
seriesRegex=(
                "(.{3,})s([0-9]+).{0,1}?e([0-9]+{0,1}){0,1}"
                "(.{3,})([0-9]+)x([0-9]+)"
  "(.{3,})([0-9]{2})([0-9]{2})"
  "(.{3,})([0-9]{1})([0-9]{2})"
            )

trim()
{
    trimmed=$1
    trimmed=${trimmed%% }
    trimmed=${trimmed## }
    echo $trimmed
}

caseChange() {
 output=''
 for arg in $*
 do
  firstChar=${arg:0:1}
  rest=${arg:1}
  output="${output} `echo "${firstChar}" | tr '[a-z]' '[A-Z]'``echo "${rest}" | tr '[A-Z]' '[a-z]'`"
 done
 echo $output;
}

setSeriesTitle () {
        seriesTitle=$(trim "`echo $1 | tr '[_. ]' ' '`")
 seriesTitle=$(caseChange $seriesTitle)
}

setSeriesSeason() {
        seriesSeason=$1
}

setSeriesEpisode() {
 seriesEpisode=$1
}

createSeriesNFO() {
 file="${1}tvshow.nfo"
 if [[ ! -f $file ]]; then
 echo "
  <tvshow>
   <title>${2}</title>
  </tvshow>
      " > "${file}"
 fi
}

createEpisodeNFO() {
 file="${1}.nfo"
 if [[ ! -f $file ]]; then
 echo "
  <episodedetails>
    <season>${2}</season>
    <episode>${3}</episode>
  </episodedetails>
      " > "${file}"
 fi
}

if [[ $# -gt 2 ]]; then
        echo "Usage: ${0} \"filename\" [\"prefix\"]"
        exit 1
fi

for (( x=0; x<${#seriesRegex[@]}; x++ ))
do
        regex=${seriesRegex[$x]}
        if [[ $filename =~ $regex ]]; then
                case $x in
                        * )
                        setSeriesTitle "${BASH_REMATCH[1]}"
                        setSeriesSeason "${BASH_REMATCH[2]}"
   setSeriesEpisode "${BASH_REMATCH[3]}"
                        ;;
                esac
  if [ $# -eq 2 ]; then
   if [ "${2:$((${#2}-${#filename}))}" = "$filename" ]; then
    directory="${2:0:$((${#2}-${#filename}))}"
   else
    directory="$2/"
   fi
  fi
  seriesDir="${directory}${seriesTitle}/"
                seriesSeasonDir="${seriesDir}Season ${seriesSeason}/"
  mkdir -p "$seriesSeasonDir"
  
  #create nfo files
  #createSeriesNFO "$seriesDir" "$seriesTitle"
  
  if [[ "$filename" =~ (.*)\..{3} ]]; then
   filename=${BASH_REMATCH[1]}
   #createEpisodeNFO "${seriesSeasonDir}${filename}" "$seriesSeason" "$seriesEpisode"
   output="${seriesSeasonDir}"
  else
   #createEpisodeNFO "${seriesSeasonDir}${filename}" "$seriesSeason" "$seriesEpisode"
   output="${seriesSeasonDir}${filename}"
  fi

  #Output for rtorrent
  echo -n "${output}"
                exit 0
        fi
done

exit 1

in .rtorrent.rc:

schedule = watch_directory_1,5,5,"load_start=~/watch/series/*.torrent,d.set_directory=~/series/,d.set_custom3=series"
system.method.set_key = event.download.inserted_new,move_series,"branch=d.get_custom3=,\"d.set_directory=\\\"$execute_capture=/usr/local/bin/mv-series,$d.get_name=,$d.get_directory=\\\"\""

for all torrents in the watch folder "series" i set the custom3 variable to series, and in the case where custom3 variable is not empty rtorrent will execute the mv-series script which will return the new download directory.

And thats about it, according to the xbmc documentation, my htpc should now be showing my tv series in library mode.

A note about the nfo creation. It seems that xbmc omits looking up series information from scrapers when a nfo is present, where i originally thought it used nfo files as a supplement to the scrapers. Because of this, i have commented out the lines that actually creates the nfo files.

If you put this script too use, and you make any changes to it, please share your changes with the masses, so other can benefit from it.

Reference:
http://xbmc.org/wiki/?title=TV_Shows_%28Video_Library%29
http://xbmc.org/wiki/?title=Import_-_Export_Library#Video_nfo_Files