#!/bin/bash
#     Script to convert from deb to ipk
# takes important stuff and repackages it.
# Depends on ipkg-build. 
# currently specifically for tcs, but hopefully can be generalized
# hopefully, maybe alien will support ipk soon.
#
# Copyright under GPL by Howard Abbey
#
# Configuration
PKG=tcs_1-6
NAME=tcs
# main file, script expects it to be in usr/bin
MAINFILE=tcs
USER="Howard Abbey <hrabbey@bigfoot.com>"
WORKDIR=/tmp
##
# This script depends on:
#ipkg-build, zip, and misc. common utils.
# should check for their existence.
##
# should compare my comments to those alien uses.
# should convince / beg alien to support ipks
# should make sure root (cause can't chown to root)
# grep should $0 for more.
##
# seems to need a capitalization aware filesystem (like ext2, unlike vfat)
# should test can write Capitals
#cd $WORKDIR
#touch TEST
## if ...NOT EXIST TEST echo error, can't write capitals to this directory then exit 1
#rm TEST || rm test
# should Check if enough room: 3x size of deb?
# Unpack
echo Preparing to repackage $NAME
mkdir $WORKDIR/Deb2ipk
cd $WORKDIR/Deb2ipk
dpkg-deb -e $WORKDIR/$PKG.deb DEBIAN
dpkg-deb -x $WORKDIR/$PKG.deb DEBIAN
# Package copyright Notice: since won't be in ipk, bug interactively.
#  Sharing ipk w/o this copyright maybe a violation...
#  and no room / appropriate place for it on the handheld.
more DEBIAN/usr/share/doc/$NAME/copyright
mkdir $PKG
mkdir $PKG/CONTROL
### Custom for package:
# should generalize or auto detect if possible
mkdir $PKG/usr
mkdir $PKG/usr/bin
cp -a DEBIAN/usr/bin/$MAINFILE $PKG/usr/bin/$MAINFILE
cp DEBIAN/control $PKG/CONTROL
echo " Converted" from .deb file by $USER on `date +%D`>> $PKG/CONTROL/control
#
#
echo Rest must be done manually.  See script source.
exit 2
#
#
#####  START MANUAL WORK ####
#    You can't just cut and paste!  You need to replace the variables!
# should fix script so completely automatic.
#
# Control file changes:
#vi $WORKDIR/Deb2ipk/$PKG/CONTROL/control
# text falls under Zaurus specified Console category
#  change: Section: text TO: Section Console/text
#sed....
# Depends: should be erased, since
#  depends upon libc6 which is in the base, and not in a package.
# Installed-Size: is wrong, 
#  should recalculate with du.
#change to: Installed-Size: `du -ks $PKG`
#
ipkg-build $PKG
### Results on Zaurus:
#BusyBox v0.52 (2001.08.30-07:09+0000) multi-call binary
# 
#Usage: find [PATH...] [EXPRESSION]
# 
#tar: Creation of compressed not internally
#support by tar, pipe to busybox gunzip     
###so ipkg-build not supported by Z's default Busybox!
### Results on Desktop as non-root:
#*** Warning: The following files have a UID greater than 99.
#You probably want to chown these to a system user: 
### So should do as root?  can't erase if chown to root unless root.  Ugh...
mv $PKG_arm.ipk $WORKDIR
# Make a zip so can bundle minimal documentation.
echo "
This is a repackaged ipk from a Debian GNU/Linux package.
This ipk was put together by $USER,
with a script called ipk-frm-deb (original, isn't it? ).
--  
" > $WORKDIR/copyright
cat DEBIAN/usr/share/doc/$NAME/copyright >> $WORKDIR/copyright
echo "
This package is a subset of a Debian GNU/Linux package.  
See its .deb version ( $PKG.deb ) for more complete documentation. 
" > $WORKDIR/README
cd $WORKDIR
zip -9 $PKG.zip $PKG_arm.ipk copyright README 
rm copyright README
rm -rf $WORKDIR/Deb2ipk 
echo Created:
ls $WORKDIR/$PKG_arm.ipk $WORKDIR/$PKG.zip