R60copy_epgimage

#!/bin/bash
#
# From VDR's INSTALL file:
# The program will be called with two or three (in case of "editing" and "edited")
# string parameters. The first parameter is one of
# 
#   before      if this is *before* a recording starts
#   started     if this is after a recording has *started*
#   after       if this is *after* a recording has finished
#   editing     if this is before *editing* a recording
#   edited      if this is after a recording has been *edited*
#   deleted     if this is after a recording has been *deleted*
# 
# and the second parameter contains the full name of the recording's
# directory (which may not yet exists at that moment in the "before" case).
# In the "editing" and "edited" case it will be the name of the edited version
# (second parameter) and the name of the source version (third parameter).
# In the "deleted" case the extension of the directory name is ".del"
# instead of ".rec".
# 
# Within this program you can do anything you would like to do before and/or
# after a recording or after an editing process. However, the program must return
# as soon as possible, because otherwise it will block further execution of VDR.
# Be especially careful to make sure the program returns before the watchdog
# timeout you may have set up with the '-w' option! If the operation you want to
# perform will take longer, you will have to run it as a background job.
# 
# Example:
# R60copy_epgimage <command> <path to .rec>
#
# R60copy_epgimage after /srv/vdr/video/hitec/Doku/%Die_stille_Revolution_der_Mechatronik/2004-04-23.15\:25.50.99.rec
# $1 <command>  after
# $2 <path to .rec> /srv/vdr/video/hitec/Doku/%Die_stille_Revolution_der_Mechatronik/2004-04-23.15\:25.50.99.rec
#
# R60copy_epgimage edited /srv/vdr/video/hitec/Doku/%Die_stille_Revolution_der_Mechatronik/2004-04-23.15\:25.50.99.rec /video0/hitec/Doku/Die_stille_Revolution_der_Mechatronik/2004-04-23.15\:25.50.99.rec
# $1 <command> edited
# $2 <path to new .rec> /srv/vdr/video/hitec/Doku/%Die_stille_Revolution_der_Mechatronik/2004-04-23.15\:25.50.99.rec
# $3 <path to old .rec> /srv/vdr/video/hitec/Doku/Die_stille_Revolution_der_Mechatronik/2004-04-23.15\:25.50.99.rec
#
# epg definitions
EPGIMAGESPATH="/var/cache/vdr/epgimages"
EPGIMAGESFORMAT="jpg"

# eventid for recording
geteventid() {
	for file in "${origin}/info"*; do
		EVENTID=$(grep -Po "(?<=^E\ )(\d+)(?=\ )" "$file")
		[ -n "$EVENTID" ] && return 0
	done
	return 1
}

copyepgimages() {
	# This function takes 3 arguments:
	# $1 directory that contains the info file for the recording
	# $2 destination for epgimages
	# $3 directory with epgimages
        origin="$1"
        target="$2"
        epgimages_dir="$3"

        for i in "$origin" "$target" "$epgimages_dir"; do
		[ -z "$i" ] && echo "copyepgimages: got an invalid argument" && exit 0
	done

	geteventid "$origin" || return 0
	find "$epgimages_dir" -name "${EVENTID}_*.${EPGIMAGESFORMAT}" -exec cp {} "${target}/" \;
}

case $1 in
	before)
		# do here whatever you would like to do right BEFORE
		# the recording $2 STARTS
		;;
	started)
		# do here whatever you would like to do right AFTER
		# the recording $2 STARTED
		copyepgimages "$2" "$2" "$EPGIMAGESPATH"
		;;		
	after)
		# do here whatever you would like to do right AFTER
		# the recording $2 ENDED
		#copyepgimages $EPGIMAGESPATH
		;;
	edited)
		# do here whatever you would like to do right AFTER
		# the recording $3 has been EDITED (path is $2)
		copyepgimages "$3" "$2" "$3" 
		[ -f "${3}/info.epg2vdr" ] && cp "${3}/info.epg2vdr" "${2}/"
		;;
	*)
		echo "Script needs two parameters. See example inside the script."
		exit 0
		;;
esac