colgen.sh

#!/bin/ash

cfile=/mnt/us/system/collections.json
wdir=`dirname "$0"`

AddSerial() {
        [ ${#2} -ne 0 ] && {
                [ ${first:-yes} == yes ] && { echo { > $cfile; first=no; } || { echo ,\ >> $cfile; }
                echo '"'$1'@en-US":{"items":['${2%,}'],"lastAccess":'`date +%s`'}' >> $cfile
        }
}

AddBookWithASIN() {
        echo "$1" | grep -qi asin_ && {
                ASIN=`echo "$1"|sed 's!.*asin_!!;s!-.*!!'`
                TYPE=`echo "$1"|sed 's!.*type_!!;s!-.*!!'`
                [ ${#ASIN} -gt 0 -a ${#TYPE} -gt 0 ] && BOOKID='"#'$ASIN^$TYPE'",'
        }
        [ ${#BOOKID} -eq 0 ] && {
                ASIN=`sed -n '/^q$/{s!.*!!;N;N;N;s![[:space:]]*[(,[:cntrl:]]*!!;/^[A-Za-z0-9]/{p;q;};}' "$1"`
                TYPE=`sed -n '/^[[:cntrl:]]?$/{s!.*!!;N;N;N;s![[:space:]]!!g;/^[A-Z]/{p;q;};}' "$1"`
                [ ${#ASIN} -gt 0 -a ${#TYPE} -gt 0 ] && BOOKID='"#'$ASIN^$TYPE'",'
        }
}

AddAZW2() {
        unzip -oq "$1" META-INF/MANIFEST.MF -d "$wdir/temp"
        ASIN=`awk '$0~/^Amazon-ASIN: / {print $2}' "$wdir/temp/META-INF/MANIFEST.MF"`
        [ ${#ASIN} -gt 0 ] && BOOKID='"#'$ASIN^AZW2'",'
        rm -rf "$wdir"/temp/*
}

AddBook() {
        BOOKID=""
        FILEEXT=`echo "$1"|awk -F. '{printf "%s",tolower($NF)}'`
        for EXT in mobi pdf txt prc azw azw2 mp3; do
                [ $FILEEXT == $EXT ] && {
                        [ $FILEEXT == azw -o $FILEEXT == mobi ] && AddBookWithASIN "$1"
                        [ $FILEEXT == azw2 ] && AddAZW2 "$1"
                        [ ${#BOOKID} -eq 0 ] && BOOKID='"*'`echo -n "$1" | openssl sha1`'",'
                        BOOKS="$BOOKS$BOOKID"
                        return 1
                }
        done
}

mkdir -p "$wdir/backup" "$wdir/temp"
[ ! -f "$wdir/backup/collections.json" ] && cp $cfile "$wdir/backup"

for i in /mnt/us/documents /mnt/us/audible; do
        find "$i" -type d | sed 1d | sort -r | while read dir; do
                for k in "$dir"/*; do [ -f "$k" ] && AddBook "$k"; done
                AddSerial "${dir#/mnt/us/*/}" $BOOKS; BOOKS=""
        done
done
echo } >> $cfile
/etc/init.d/framework restart