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#!/bin/bash
## creates a recursive zip for any picture-folder containing a blank file with name "zip.txt"


installdir=$(dirname $(readlink -f $0) | sed -r 's!/addons/?$!!')
  ## must be installed in addons


## ToDo: get $basedir and $cachedir from php-configs
  basedir="pictures"
  cachedir="cache"
   basedir=$(echo  "$basedir"  | sed -r 's!(^/|/$)!!g')
   cachedir=$(echo "$cachedir" | sed -r 's!(^/|/$)!!g')


ZIP=$(which zip 2>/dev/null)
  [ "$ZIP" = "" ] && echo "zip not installed, exit..." && exit 1


pidfile="$(basename $0).pid.txt"
  # delte orphan pid-files
    find "$installdir/$cachedir" -name "$pidfile" -mmin +30 -delete
  pidfile="$installdir/$cachedir/$pidfile"
    [ -f "$pidfile" ] && exit 0
      touch "$pidfile"


## get all by "zip.txt" file requested zips
  find "$installdir/$basedir" -mindepth 2 -iname zip.txt -print0 | while read -d $'\0' file ; do

    ## generate filename as needed: http://www.tinywebgallery.com/de/faq.php#h19
      zip_name=$(dirname "$file" | sed "s!$installdir/$basedir/!!" | sed 's!/!_!g')
      dir_name=$(dirname "$file")


    cd "$dir_name"

    # -q                quite (bash-mode) / -v : verbose
    # --filesync        update new/changed files, remove removed fiels from zip
    # -r ./*            recursive
    # -n                exclude from compression
    # -x                exclude
      $ZIP "$zip_name.zip" -q \
        --filesync -r ./* \
        -n .jpg:.jpeg:.JPG:.mp3:.mov:.avi:.mpg:.mpeg:.divx:.wmv:.wma:.flv \
        -x *.txt *.TXT *.php *.PHP *.js *.id *.htaccess* *.htp* *.zip *.ZIP *.xml *.htm *.html *.ico *.css \
        *folder.png *folder_top.png *watermark.png *watermark_big.png *back.png

  done


rm -f "$pidfile"
  exit 0

# udpate, damit es auch mit symlink Ordnern klappt muss ein / ans Ende der beiden finds:
find "$installdir/$cachedir/"
find "$installdir/$basedir/"