#!/bin/bash
#
# Script to create a bootable CD image file containing rEFInd.
# Usage:
#
#   ./mkcdimage {version}
#
# where {version} is the rEFInd version number.
#
# This script relies on the mcopy utility.
#
# The script creates an image file from the binary package
# stored in ../snapshots/{version}/refind-bin-{version}.zip
# The resulting CD image file is stored in
# ../snapshots/{version}/refind-cd-{version}.iso

StartDir=`pwd`
Version=$1

# Unzip the binary archive file....
cd ../snapshots/$Version
rm -rf temp
mkdir temp
cd temp
unzip ../refind-bin-$Version.zip
cp $StartDir/SHELLS.txt ./refind-bin-$Version

# Create a boot directory and (temporarily) copy the EFI shell
# files to it....
mkdir -p refind-bin-$Version/EFI/boot
cd refind-bin-$Version/EFI/boot
cp $StartDir/shell*.efi ./

# Create hard links to the rEFInd files so that they'll be suitable for an
# EFI-boot CD...
ln ../../refind/refind_ia32.efi ./bootia32.efi
ln ../../refind/refind_x64.efi ./bootx64.efi
ln ../../refind/refind.conf-sample ./refind.conf
mkdir icons
cd icons
ln ../../../refind/icons/* ./
cd ../../..

# Get the size of the binaries to go in the El Torito image in kB
ToritoSize=`du -s EFI | cut -f 1`
let ToritoSize=($ToritoSize)/28
let ToritoSize=($ToritoSize)*32

# Move the EFI shell files back to the root where they belong
# (They were in EFI/boot just so they'd get counted in ToritoSize)
mv EFI/boot/shell*.efi ./

# Prepare a FAT filesystem image and populate it with the
# EFI boot files....
dd if=/dev/zero of=refind-bin-$Version.img bs=1024 count=$ToritoSize
mkdosfs -n "rEFInd.ET" refind-bin-$Version.img
mcopy -irefind-bin-$Version.img -s EFI shell*.efi ::/

# Make the ISO-9660 image file....
mkisofs -A "Bootable rEFInd" -V "rEFInd $Version" -volset "rEFInd $Version" \
    -J -r -v -x ./lost+found -o ../../refind-cd-$Version.iso \
    -eltorito-alt-boot -efi-boot refind-bin-$Version.img \
    -no-emul-boot ./

# Below is like above, but also creates an El Torito entry for BIOS
# booting. That's useless, but in case something flakes out without
# it, I'll preserve this version for a while....
#mkisofs -A "Bootable rEFInd" -V "rEFInd $Version" -volset "rEFInd $Version" \
#    -J -r -v -x ./lost+found -o ../../refind-cd-$Version.iso \
#    -b refind-bin-$Version.img -c boot.cat -no-emul-boot -boot-load-size 4 \
#    -eltorito-alt-boot -efi-boot refind-bin-$Version.img \
#    -no-emul-boot ./

# Create a bootable USB flash drive image, using the FAT filesystem
# created above and a stored partition table image (plus some empty
# sectors)....
#
# Note: Seems to work on only a few systems, so I'm not distributing
# the resulting images yet....
#
rm ../../refind-flashdrive-$Version.*
cat $StartDir/flashparts.img refind-bin-$Version.img > refind-flashdrive-$Version.img
cp $StartDir/README-flashdrive.txt ./
cd ..
mv refind-bin-$Version refind-flashdrive-$Version
zip -9r ../refind-flashdrive-$Version.zip \
    refind-flashdrive-$Version/refind-flashdrive-$Version.img \
    refind-flashdrive-$Version/docs refind-flashdrive-$Version/LICENSE.txt \
    refind-flashdrive-$Version/COPYING.txt \
    refind-flashdrive-$Version/CREDITS.txt \
    refind-flashdrive-$Version/README.txt \
    refind-flashdrive-$Version/SHELLS.txt \
    refind-flashdrive-$Version/README-flashdrive.txt
mv refind-flashdrive-$Version/refind-flashdrive-$Version.img ../

cd ../

# Zip up the optical disc image....
rm -f refind-cd-$Version.zip
zip -9 refind-cd-$Version.zip refind-cd-$Version.iso

rm -r temp/