supplementary_scripts/amarok_live/amarok.live.remaster.part1.sh

   1 #!/usr/bin/env bash
   2 #set -x
   3
   4 ############################################################################
   5 # Disassemble an Amarok LiveCD iso file into a specified directory
   6 # for the purpose of adding a users own music and putting it back together
   7 #
   8 # Based on a script authored by Ivan Kerekes <ikerekes@gmail.com>
   9 # and modified by Leo Franchi <lfranchi at gmaildotcom>, Mike Diehl
  10 # <madpenguin8 at yahoodotcom> and Greg Meyer <greg at gkmwebdotcom>
  11 #
  12 # See the file called README for more information
  13 ############################################################################
  14 #
  15 # This program is free software; you can redistribute it and/or modify
  16 # it under the terms of the GNU General Public License as published by
  17 # the Free Software Foundation; either version 2 of the License, or
  18 # (at your option) any later version.
  19 #
  20 ############################################################################
  21
  22
  23 cleanup () {
  24     rm -rf $WORK/mklivecd
  25     rm -rf $WORK/amarok.live
  26     rm -rf $WORK/livecd_data*
  27 }
  28
  29 # We need to be root to mount the loopback
  30 # check for root and exit if not
  31
  32 if [ `/usr/bin/whoami` = 'root' ]; then
  33
  34 iso=$2
  35
  36 if [ $iso = 0 ] ; then
  37     exit
  38 fi
  39
  40 WORK=$1
  41
  42 if [ $WORK = 0 ] ; then
  43     exit
  44 fi
  45
  46 # Determine if enough space
  47
  48 redo=0
  49 enough=0
  50 tmp=$WORK
  51 while [ "$redo" = "0" ]; do
  52     while [ "$enough" = "0" ]; do # loops until found something
  53         if [[ -n  `df | grep $tmp` ]] ; then # we got it in df, find the space left
  54             anotmp=`df | grep $tmp |  sed "s~^\([^ ]*\) *\([^ ]*\) *\([^ ]*\) *\([^ ]*\) *\([^ ]*\) *\([^ ]*\)$~\4~"`  # now we have a string, first item is free space in /
  55             free=`echo $anotmp  | sed "s~^\([^ ]*\) \(.*\)~\1~"` # get first space-delimited item
  56 #                       echo "comparing" $free "to 1572864"
  57             if [[ $free -gt 1572864 ]] ; then
  58                 enough=1
  59                 redo=1
  60                 break
  61             else
  62                 dcop --all-users amarok playlist popupMessage "Not enough free space. Please select another folder."
  63                 break
  64             fi
  65         else
  66             res=`echo "$tmp" | sed "s~/\(.*\)/\([^/]*\)$~/\1~"`
  67             if [[ "$tmp" = "$res" ]]; then # last one, regexp fails here
  68                 tmp="/"
  69             else #normal, removes one dir from path
  70                 tmp=$res
  71             fi
  72 #            echo "new tmp: " $tmp
  73         fi
  74     done
  75     if [[ "$redo" = "0" ]]; then
  76         WORK=`kdialog --title "Choose working directory" --getexistingdirectory .`
  77                 tmp=$WORK
  78                 if [[ "$?" == 0 ]]; then
  79                         break
  80         else
  81            exit
  82                 fi
  83                 enough=0
  84     fi
  85 done
  86
  87 #Mount the iso if not already mounted
  88 if [ ! -d "$DATADIR" ]; then
  89    DATADIR=$WORK/livecd_data$$
  90    mkdir -p "$DATADIR"
  91    mount -o loop "$iso" "$DATADIR"
  92 fi
  93
  94 # Make the working directories and blow out the initrd.gz into a separate directory
  95
  96 mkdir -p $WORK/mklivecd/livecd
  97 cp -a --preserve "$DATADIR"/* $WORK/mklivecd/livecd/
  98 mkdir -p $WORK/mklivecd/initrd.dir
  99 mkdir -p $WORK/mklivecd/initrd.mnt
 100 gunzip -c $WORK/mklivecd/livecd/isolinux/initrd.gz > $WORK/mklivecd/livecd/isolinux/initrd
 101 mount -o loop $WORK/mklivecd/livecd/isolinux/initrd $WORK/mklivecd/initrd.mnt
 102 (cd $WORK/mklivecd/initrd.mnt ; tar cf - .) | (cd $WORK/mklivecd/initrd.dir ; tar xf -)
 103 umount $WORK/mklivecd/initrd.mnt
 104 rm -f $WORK/mklivecd/livecd/isolinux/initrd
 105
 106
 107 # cleanup all temporary files and directories
 108
 109 umount "$DATADIR" 2>/dev/null >/dev/null
 110 if [ "$?" = "0" ]; then rmdir $DATADIR; fi
 111
 112 # at this point we unsquash the fs so the user can add their own music
 113
 114 if [[  `cat /proc/filesystems | grep squash | wc -l` = 0 ]]; then
 115         modprobe squashfs
 116         if [[  `cat /proc/filesystems | grep squash | wc -l` = 0 ]]; then
 117
 118          dcop --all-users amarok playlist popupMessage "You do not have squashfs support enabled. You need to have a patched kernel with squashfs. You can find more info about squashfs, and how to patch your kernel, here: http://tldp.org/HOWTO/SquashFS-HOWTO/"
 119
 120                 rm -rf $WORK/mklivecd
 121         fi
 122 fi
 123
 124 mkdir $WORK/amarok.livecd/
 125 mount -o loop -t squashfs $WORK/mklivecd/livecd/livecd.sqfs $WORK/amarok.livecd/
 126
 127 # gotta copy it locally so the user can add files to it
 128
 129 mkdir $WORK/amarok.live/
 130 dcop --all-users amarok playlist shortStatusMessage "Copying files now. Please be patient, this step takes a long time."
 131 #echo
 132 #echo "Please wait, copying in progress."
 133 #echo
 134 cp -a $WORK/amarok.livecd/* $WORK/amarok.live/
 135 umount $WORK/amarok.livecd/
 136 rmdir $WORK/amarok.livecd
 137
 138 mkdir $WORK/amarok.live/home/amarok/.kde/share/apps/amarok/playlists
 139 chown 500:500 $WORK/amarok.live/home/amarok/.kde/share/apps/amarok/playlists
 140 find $WORK/amarok.live/home/amarok/.kde/share/apps/ -type d -print0 | xargs -0 chmod +x
 141 chmod -R 777 $WORK/amarok.live/music/
 142 chmod -R 777 $WORK/amarok.live/home/amarok/.kde/share/apps/amarok
 143 #chmod -R 777 $WORK/mklivecd/
 144
 145 dcop --all-users amarok playlist popupMessage "Copying done. To add music to the Amarok livecd, select the tracks you wish to add in the playlist, and select \"Add to livecd\" from the right click menu. Please do not add more than about 380 mb, as then the resulting ISO will be too large to fit on a CD-ROM. Once you are done, select Create Remastered CD. Enjoy!"
 146
 147 else
 148
 149 kdialog --title "Amarok livecd remaster" --sorry "You must run this script as root. Try running 'kdesu sh amarok.live.remaster.part1.sh' instead."
 150
 151 fi