assemble-app-bin.sh

#!/bin/sh
#
# This file was part of WDTV Tools (http://wdtvtools.sourceforge.net/).
# Copyright (C) 2009 Elmar Weber <wdtv@elmarweber.org>
#
# adaptation to wdtvhack by Denis Roio <jaromil@dyne.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or 
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

# assembly script for application images
                 
appname=wdtvhack

echo "We need root access: this program needs to loopback mount a filesystem."


if [ -z $1 ]; then
    # no argument, create fresh

    imagefile=./$appname.app.bin
    loopdir=./$appname.app.loop
    
# create and fill in appdir
    appdir=$appname.app
    
    sudo rm -rf $appdir $imagefile $loopdir
    
    mkdir -p $appdir
    mkdir -p $appdir/etc/init.d
    
    cp -v S99wdtvhack $appdir/etc/init.d &&
    chmod a+x $appdir/etc/init.d/S99wdtvhack &&
    cp -v README AUTHORS $appdir &&    
    sudo chown -R root:root $appdir
    
    dd if=/dev/zero of=$imagefile bs=1K count=64 &&
    /sbin/mkfs.ext3 -F $imagefile &&
    /sbin/tune2fs -c 0 -i 0 $imagefile &&
    mkdir -p $loopdir &&
    sudo mount -o loop $imagefile $loopdir &&
    cp -a $appdir/* $loopdir/ &&
    sudo rm -rf $loopdir/lost+found &&
    sudo chown root:root -R $loopdir &&
    sudo umount $loopdir &&
    sudo rm -rf $loopdir $appdir && 
    sudo /sbin/fsck.ext3 $imagefile

else
    # has argument, update existing
    appname=$1
    loopdir=/tmp/`basename $appname`.loop

    if ! [ -r $appname ]; then
	echo "error: $appname doesn't exist"
	exit 1
    fi
    mkdir -p $loopdir
    sudo mount -o loop $appname $loopdir

    cp -v S99wdtvhack $loopdir/etc/init.d &&
    chmod a+x $loopdir/etc/init.d/S99wdtvhack &&
    cp -v README AUTHORS $loopdir &&
    sudo chown -R root:root $loopdir

    sudo umount $loopdir
    sudo sync
    sudo rm -r $loopdir

fi