#!/bin/bash
# slink_cd v 1.13 (c) Steve McIntyre <stevem@chiark.greenend.org.uk>
# Released under GPL 31 Mar 1999
# See the file COPYING for license details
# Greatly influenced by the older Makefile system in the Hamm debian-cd package
#
##############################################################################
#
#  Read the README! IMPORTANT STUFF HERE!
#
##############################################################################

# Version number, to be used later
SLINKCD_VERSION=1.13
SLINKCD_SITE="http://www.chiark.greenend.org.uk/~stevem/DebianCD/"

###########################################################################
# Default options - we check for these in the environment first, so it
# is possible to drive this script entirely without changing these if
# you so desire. Where this really comes into its own is in automating
# the process for multiple architectures - try a script that sets the
# environment appropriately, then calls this for each architecture,
# something like:
# 
# ARCH=i386 TDIR=~/i386-tmp OUT=~/i386-out ./slink_cd <options>
# ARCH=m68k TDIR=~/m68k-tmp OUT=~/m68k-out ./slink_cd <options>
# ARCH=alpha TDIR=~/alpha-tmp OUT=~/alpha-out ./slink_cd <options>
# ARCH=sparc TDIR=~/sparc-tmp OUT=~/sparc-out ./slink_cd <options>
#
# It's not pretty but it should work... (TM) :-) - look at the included 
# "arch" script for an example.
###########################################################################

# Grab current directory for later use. Can be over-ridden by $BASEDIR
# in the environment
BASEDIR=${BASEDIR:-$PWD}

# Architecture to build images for (i386, alpha, m68k, sparc, powerpc so far).
# Default, will be overridden by other options - use m68k, alpha or i386 on 
# commandline to change
ARCH=${ARCH:-i386}

# Top level location of Debian mirror
MIRROR=${MIRROR:-/home/ftp/debian}

# Location of non-US mirror
NONUS=${NONUS:-$MIRROR/non-US}

# Path to use with mkisofs/mkhybrid
MKISOFS=${MKISOFS:-"mkhybrid"}

# Options to use with mkisofs/mkhybrid - one of these should do you
# If you're using i386 then -J will be added later to add Joliet stuff
# * Why can't Windows read RockRidge like any sensible OS? *
#MKISOFS_OPTS=${MKISOFS_OPTS:-"-a -r -T"} # For normal users

MKISOFS_OPTS=${MKISOFS_OPTS:-"-a -r -F -T"} # For sym-link farmers. 
# Also make sure you have a patched mkhybrid - read the README

# TDIR must be on the same partition as the mirror for hard links trick 
# to work
TDIR=${TDIR:-~stevem/slinkcd}

# Target directory for output ISO images
OUT=${OUT:-$MIRROR/local/images}

# Sparc (maybe other?) boot directory from where to grab the SILO boot loader
BOOTDIR=${BOOTDIR:-/boot}

. $BASEDIR/vecho # Local definitions for vecho, vvecho, vvvecho

# Default debug level
VERBOSE=0
DATE=`date +%Y%m%d`

# Parse options

if [ $# -gt 0 ] ; then
    while [ $# -gt 0 ] 
    do
        case "$1"x in 
	  "-v"x)
	      VERBOSE=$[ $VERBOSE + 1 ]
	      shift 1
	  ;;
	  "clean"x)
	      CLEAN=1
	      shift 1
	  ;;
	  "genlist"x)
	      GENLIST=1
	      shift 1
	  ;;
	  "tree"x)
	      TREE=1
	      shift 1
	  ;;
	  "genlinks"x)
	      GENLINKS=1
	      shift 1
	  ;;
	  "flatten"x)
	      FLATTEN=1
	      shift 1
	  ;;
	  "md5check"x)
	      MD5CHECK=1
	      shift 1
	  ;;
	  "packages"x)
	      PACKAGES=1
	      shift 1
	  ;;
	  "boot"x)
	      BOOT=1
	      shift 1
	  ;;
	  "extras"x)
	      EXTRAS=1
	      shift 1
	  ;;
	  "md5list"x)
	      MD5LIST=1
	      shift 1
	  ;;
	  "images"x)
	      IMAGES=1
	      IMAGE1=1
	      IMAGE2=1
	      IMAGE3=1
	      IMAGE4=1
	      IMAGESMADE=1
	      shift 1
	  ;;
	  "image1"x)
	      IMAGE1=1
	      IMAGESMADE=1
	      shift 1
	  ;;
	  "image2"x)
	      IMAGE2=1
	      IMAGESMADE=1
	      shift 1
	  ;;
	  "image3"x)
	      IMAGE3=1
	      IMAGESMADE=1
	      shift 1
	  ;;
	  "image4"x)
	      IMAGE4=1
	      IMAGESMADE=1
	      shift 1
	  ;;
	  "image5"x)
	      IMAGE5=1
	      IMAGESMADE=1
	      shift 1
	  ;;
	  "imagesums"x)
	      IMAGESUMS=1
	      shift 1
	  ;;
	  "alpha"x)
	      ARCH=alpha
	      shift 1
	  ;;
	  "sparc"x)
	      ARCH=sparc
	      shift 1
	  ;;
	  "powerpc"x)
	      ARCH=powerpc
	      shift 1
	  ;;
	  "m68k"x)
	      ARCH=m68k
	      shift 1
	  ;;
	  "i386"x)
	      ARCH=i386
	      shift 1
	  ;;
	  "single_disk"x)
	      SINGLE_DISK=1
	      shift 1
	  ;;
	  "force_deps"x)
	      FORCE_DEPENDS=1
	      shift 1
	  ;;
	  "non-US"x|"non-us"x)
	      # Only set this if we have a location for it...
	      if [ "$NONUS"x != ""x ] ; then
		NU=1
	      fi
	      shift 1
	  ;;
	  "non-free"x)
	      NF=1
	      shift 1
	  ;;
	  *)
	      echo \"$1\": invalid option.
	      exit 1
	  ;;	
        esac
    done			
else
    CLEAN=1
    GENLIST=1
    TREE=1
    GENLINKS=0
    FLATTEN=1
    MD5CHECK=1
    PACKAGES=1
    BOOT=1
    EXTRAS=1
    MD5LIST=1
    IMAGE1=0
    IMAGE2=0
    IMAGE3=0
    IMAGE4=0
    IMAGE5=0
	IMAGESUMS=0
    NU=0
    NF=0
	SINGLE_DISK=0
fi

if [ "$IMAGES"x = "1"x -a "$NF"x = "1"x ] ; then
	IMAGE5=1
fi

error=0
vecho VERBOSE=$VERBOSE
vecho CLEAN=$CLEAN
vecho GENLIST=$GENLIST
vecho TREE=$TREE
vecho GENLINKS=$GENLINKS
vecho FLATTEN=$FLATTEN
vecho MD5CHECK=$MD5CHECK
vecho PACKAGES=$PACKAGES
vecho BOOT=$BOOT
vecho EXTRAS=$EXTRAS
vecho MD5LIST=$MD5LIST
vecho IMAGES=$IMAGES
vecho IMAGE1=$IMAGE1 
vecho IMAGE2=$IMAGE2
vecho IMAGE3=$IMAGE3 
vecho IMAGE4=$IMAGE4 
vecho IMAGE5=$IMAGE5 
vecho IMAGESUMS=$IMAGESUMS
vecho ARCH=$ARCH
vecho MIRROR=$MIRROR
vecho NONUS=$NONUS
vecho MKISOFS=$MKISOFS
vecho TDIR=$TDIR
vecho OUT=$OUT
vecho BASEDIR=$BASEDIR
vecho NU=$NU
vecho NF=$NF
vecho SINGLE_DISK=$SINGLE_DISK

# Sort out non-US link - this should be done better...
if [ "$NU"x = "1"x ] ; then
	vecho Checking for non-US link in $MIRROR/dists/slink
    if [ ! -L $MIRROR/dists/slink/non-US -a ! -d $MIRROR/dists/slink/non-US ] ; then
		vecho "Does not exist; trying to make one"
        (cd $MIRROR/dists/slink && ln -s $NONUS/dists/slink/non-US >/dev/null 2>&1 ) # Redirect errors - people may have a read-only mirror...
    fi
fi

# Cope with relative paths; some people insist on using them.
vecho Checking TDIR is set OK
# Does it exist?
if [ ! -e $TDIR ] ; then
	vecho "$TDIR does not exist - making it"
	mkdir $TDIR
	if [ $? -gt 0 ] ; then
		echo "Temporary directory $TDIR does not exist and we cannot create it."
		echo "Exit."
		exit 1
	fi
fi
pushd $TDIR >/dev/null
if [ $? -gt 0 ] ; then
	echo "Error in directory $TDIR"
	echo "Exit."
	exit 1
fi
TDIR=$PWD
popd >/dev/null
vecho TDIR is now $TDIR

vecho Checking MIRROR is set OK
# Does it exist?
if [ ! -e $MIRROR ] ; then
	echo "Mirror directory $MIRROR does not exist"
	echo "Exit."
	exit 1
fi

if [ "$NU"x = "1"x ] ; then
	vecho Checking NONUS is set OK
	# Does it exist?
	if [ ! -e $NONUS ] ; then
		echo "non-US Mirror directory $NONUS does not exist"
		echo "Exit."
		exit 1
	fi
fi

vecho Checking OUT is set OK
# Does it exist?
if [ ! -e $OUT ] ; then
	vecho "$OUT does not exist - making it"
	mkdir $OUT
	if [ $? -gt 0 ] ; then
		echo "Image directory $OUT does not exist and we cannot create it."
		echo "Exit."
		exit 1
	fi
fi
pushd $OUT >/dev/null
if [ $? -gt 0 ] ; then
	echo "Error in directory $OUT"
	echo "Exit."
	exit 1
fi
OUT=$PWD
popd >/dev/null
vecho OUT is now $OUT

# Check the user has done as told - make sure we're on the same
# partition as the mirror unless we have been told to "genlinks"

if [ "$GENLINKS"x != "1"x -a "$TREE"x = "1"x ] ; then
	vecho Checking that TDIR is on the same partition as the mirror.
	MIRRORPART=`df $MIRROR | grep -v ilesystem | awk '{print $1}'`
		vvecho MIRROR is on $MIRRORPART
	TMPPART=`df $TDIR | grep -v ilesystem | awk '{print $1}'`
		vvecho TDIR is on $TMPPART
	if [ "$MIRRORPART"x = "$TMPPART"x ] ; then
		vecho "Good - they match."
	else
		echo "Read the instructions, the temporary dir specified must be on the" 
		echo "same partition as the mirror unless you specify \"genlinks\" to make a sym-link"
		echo "farm"
		echo "$TMPPART != $MIRRORPART"
		exit 1
	fi
fi

# Check to see if we're being asked to create md5sums for non-existent images
if [ "$IMAGESMADE"x != "1"x -a "$IMAGESUMS"x = "1"x ] ; then
	echo "To create md5sums of CD images you first need to create the images!"
	echo "Try again, either adding an image creation option (image[12345x])"
	echo "or removing the \"imagesums\" option"
	echo "Exit."
	exit 1
fi

# If we're doing genlinks then check we have the required -F option
# for mkhybrid
if [ "$GENLINKS"x = "1"x ] ; then
	if ! (echo "$MKISOFS_OPTS" | grep -q \\-F ) ; then
		echo "If you are using the \"genlinks\" option then you also need to use a patched"
		echo "mkhybrid/mkisofs and add the \"-F\" flag to the command line for it. See the"
		echo "README file for more details."
		echo "Exit."
		exit 1
	fi
fi

# Set up for later; non-free and non-US will be added as necessary
SECTLIST="main"       # List of sections
DISKLIST="1 2 3 4"    # List of all disks
BINLIST="1 2"         # List of disks containing binaries

if [ "$SINGLE_DISK"x = "1"x ] ; then
	# Sanity check...
	if [ "$NU"x = "1"x -o "$NF"x = "1"x ] ; then
		echo 'single_disk option is not compatible with either non-free or non-US.' 
		echo Exit.
		exit 1
	fi
	if [ "$IMAGE2"x = "1"x -o "$IMAGE3"x = "1"x -o "$IMAGE3" = "1"x -o "$IMAGE4"x = "1"x ] ; then
		echo 'single_disk option is not compatible with creation of CD images other than #1.' 
		echo Exit.
		exit 1
	fi
	DISKLIST="1"
	BINLIST="1"
else
	SECTLIST="$SECTLIST contrib"
fi

if [ "$NU"x = "1"x ] ; then
    SECTLIST="$SECTLIST non-US"
fi

if [ "$NF"x = "1"x ] ; then
    SECTLIST="$SECTLIST non-free"
    DISKLIST="$DISKLIST 5"
	BINLIST="$BINLIST 5"
fi

vecho "About to run to create disk(s) $DISKLIST and section(s) $SECTLIST"

# Sanity check for combinations of options - creating sym-links then
# flattening them isn't just silly, it's stupid...

if [ "$GENLINKS"x = "1"x -a "$FLATTEN"x = "1"x ] ; then
	echo "The \"genlinks\" and \"flatten\" options are incompatible."
	echo "Exit."
	exit 1
fi

if [ $error -eq 0 ] ; then
    if [ "$CLEAN"x = "1"x ] ; then
		echo CLEAN:
		vecho Removing old directories
		if [ "$VERBOSE" -gt 1 ] ; then
			rm -rvf $TDIR
		else
			rm -rf $TDIR
		fi
		mkdir $TDIR
	fi
fi	

vecho "Making working copies of config files, converting ARCH to $ARCH"
if [ -e $TDIR/slink1.list ] ; then
    vecho "You already appear to have them. I therefore assume the ones in"
    vecho "$TDIR are correct and I will leave them alone. If you"
    vecho "want to generate new ones, delete the file \"slink1.list\" in"
    vecho "$TDIR and try again."
else
    for i in $DISKLIST
    do
        for TYPE in list info volid extras optional
        do
			if [ -e slink$i.$TYPE ] ; then
				vecho "    slink$i.$TYPE"
				cat slink$i.$TYPE | sed "s/ARCH/$ARCH/g" >$TDIR/slink$i.$TYPE
			fi
        done
    done
	vecho "    mkisofsrc"
	cat mkisofsrc | sed "s/ARCH/$ARCH/g" >$TDIR/.mkisofs
	ln -s .mkisofs $TDIR/.mkisofsrc
	vecho "    slink1.needed" 
	slice master
	if [ $? -gt 0 ] ; then
		echo "\"slice master\" failed - do you have the slice package installed?"
		echo Exit.
		exit 1
	fi
	echo "# Do not edit this file - it is automatically generated." >$TDIR/slink1.needed
	echo "# Edit \"master\" instead." >>$TDIR/slink1.needed
	cat master.$ARCH | awk -F':' '
	/Packages:/ {packages++; next} 
	/.+.+/      {if(packages) {print $1}}
	' |sort |uniq >>$TDIR/slink1.needed
	rm master.*

	vecho "    slink1.useful" 
	slice useful
	if [ $? -gt 0 ] ; then
		echo "\"slice useful\" failed - do you have the slice package installed?"
		echo Exit.
		exit 1
	fi
	echo "# Do not edit this file - it is automatically generated." >$TDIR/slink1.useful
	echo "# Edit \"useful\" instead." >>$TDIR/slink1.useful
	cat useful.$ARCH | awk -F':' '
	/.+.+/      {print $1}
	' |sort |uniq >>$TDIR/slink1.useful
	rm useful.*

	# Check for non-US entries in these files - if we mention it then fix it...
	if [ "$NU"x != "1"x ] ; then
		vecho "non-US option not given, so removing non-US references from file lists"
		for file in $TDIR/slink*.list
		do
			mv $file $file.1
			vecho "    $file"
			grep -v non-US $file.1 >$file
		done
	fi
fi

if [ $error -eq 0 ] ; then
    if [ "$GENLIST"x = "1"x ] ; then
		echo GENLIST:
        $BASEDIR/mklist "$MIRROR" "$BASEDIR" "$TDIR" "$ARCH" "$VERBOSE"
        
        cd $TDIR

        # Now combine the lists
		if [ ! -e slink1.list ] ; then
			echo mklist step failed - $TDIR/slink1.list not found
			echo Exit.
			exit 1
		fi
		if [ ! -e list/OUT1 ] ; then
			echo mklist step failed - $TDIR/list/OUT1 not found
			echo Exit.
			exit 1
		fi
        mv slink1.list slink1.list.orig
        cat slink1.list.orig | grep -v main/binary- >slink1.list
        cat list/OUT1 | sed 's/dists\/frozen/dists\/slink/g;s/dists\/stable/dists\/slink/g' >>slink1.list
        rm slink1.list.orig

		if [ "$SINGLE_DISK"x != "1"x ] ; then
			# Now combine the lists
			if [ ! -e slink2.list ] ; then
				echo mklist step failed - $TDIR/slink2.list not found
				echo Exit.
				exit 1
			fi
			if [ ! -e list/OUT2 ] ; then
				echo mklist step failed - $TDIR/list/OUT2 not found
				echo Exit.
				exit 1
			fi
			mv slink2.list slink2.list.orig
			cat slink2.list.orig | grep -v main/binary- >slink2.list
			cat list/OUT2 | sed 's/dists\/frozen/dists\/slink/g;s/dists\/stable/dists\/slink/g' >>slink2.list
			rm slink2.list.orig
	    fi
    fi
fi	

# Make sym-link farm for those people that need it...
if [ $error -eq 0 ] ; then
    if [ "$GENLINKS"x = "1"x ] ; then
		echo GENLINKS:
		vecho Making sym-link farm of parts of $MIRROR under $TDIR/tmp-mirror
        cd $TDIR
		mkdir tmp-mirror
		cd tmp-mirror
		cp -pRs $MIRROR/dists $MIRROR/doc $MIRROR/README* $MIRROR/hamm $MIRROR/indices $MIRROR/ls* $MIRROR/project $MIRROR/tools .

		# Copy non-US separately if necessary...
		if [ -L $MIRROR/dists/slink/non-US ] ; then
			vecho Adding non-US
			rm dists/slink/non-US
			mkdir dists/slink/non-US
			cp -dpRs $NONUS/slink/* dists/slink/non-US
		fi

		cd dists/slink
		vecho Putting binary-all links in
		find . | $BASEDIR/mklinks $VERBOSE
		MIRROR=$TDIR/tmp-mirror
	fi
fi

# Make initial tree(s)
if [ $error -eq 0 ] ; then
    if [ "$TREE"x = "1"x ] ; then
		echo TREE:
        cd $TDIR

		# First of all the general stuff to go on all disks.
        for i in $DISKLIST
        do
			vecho Disk $i
			vecho "   Make directories"
			mkdir -p $TDIR/slink$i/dists/slink
			mkdir -p $TDIR/slink$i/.disk

			# Oops. We're copying the dists stuff into the root
			# directory, the boot-floppies install stuff wants it in
			# /debian. Simple fix...
			cd $TDIR/slink$i
			ln -s . debian 

			# Set up symlinks so things may work.
			cd dists 
			ln -s slink stable 
#           Frozen no longer needed
#			ln -s slink frozen

			cd stable 

			cd $TDIR			
			vecho "   Copy info file"
			(cat slink$i.info | awk '{printf("%s",$0)}'; echo $DATE) \
					>slink$i/.disk/info
			vecho "   Copy release notes"
			cp $MIRROR/dists/slink/main/Release-Notes slink$i
			vecho "   Copy README.1ST"
			echo "This Debian CD was created by slink_cd version $SLINKCD_VERSION on $DATE" >slink$i/README.1ST
			echo "slink_cd is available from $SLINKCD_SITE">>slink$i/README.1ST
			echo "This disc is labelled" >>slink$i/README.1ST
			echo "" >>slink$i/README.1ST
			cat slink$i/.disk/info >>slink$i/README.1ST
			if [ -e $BASEDIR/README.multicd ] ; then
				vecho "   Copy README.multicd"
				cat $BASEDIR/README.multicd >>slink$i/README.multicd
			fi
			todos slink$i/README.1ST
			cd $MIRROR
			vecho "   Create tree"
			for file in `cat $TDIR/slink$i.list`
			do 
				cp -dpRPl $file $TDIR/slink$i
			done
        done

		cd $TDIR			

		# And now the arch-specific stuff, NOT to go on the source disks.
        for i in $BINLIST
        do
			vecho Disk $i
			vecho "   Make binary directories"
			for SECT in $SECTLIST
			do
				mkdir -p slink$i/dists/slink/$SECT/binary-$ARCH
				mkdir -p slink$i/dists/slink/$SECT/binary-all
			done
			vecho "   Finish README.1ST"
			echo "" >>slink$i/README.1ST
			if [ -e $BASEDIR/README.1ST.$ARCH ] ; then
				cat $BASEDIR/README.1ST.$ARCH >>slink$i/README.1ST
			fi
			if [ -e $BASEDIR/README.$ARCH ] ; then
				vecho "   Copy README.$ARCH"
				cat $BASEDIR/README.$ARCH >>slink$i/README.$ARCH
			fi
        done

		# Add the Release files, munging if necessary
        for i in $BINLIST
        do
			vecho Disk $i
			vecho "   add Release files"
			for SECT in $SECTLIST
			do
				if [ -e slink$i/dists/slink/$SECT/binary-$ARCH/Release ] ; then
					rm -f slink$i/dists/slink/$SECT/binary-$ARCH/Release
				fi
				
				if [ -d slink$i/dists/slink/$SECT/binary-$ARCH ] ; then
					if [ -e slink$i/dists/slink/$SECT/binary-$ARCH/Release ] ; then
						cat $MIRROR/dists/slink/$SECT/binary-$ARCH/Release \
							| sed 's/frozen/stable/g' \
							> slink$i/dists/slink/$SECT/binary-$ARCH/Release
					fi
				fi
			done
        done		
		
		# Add sym-links for the upgrade stuff if we have it.
		if [ "$ARCH"x = "i386"x ] ; then
			vecho "Disk 1"
			vecho "   upgrade-2.0-i386"
			(cd $TDIR/slink1 && ln -s dists/stable/main/upgrade-2.0-i386)
			vecho "   upgrade-older-i386"
			(cd $TDIR/slink1 && ln -s dists/stable/main/upgrade-older-i386)
		fi
    fi
fi

# Fix the crypt++el_2.84-2.deb brokenness in non-US - temporary workaround...
if [ "$NU"x = "1"x ] ; then
	vecho "Looking for broken crypt++el_2.84-2.deb link in non-US..."
    cd $TDIR/slink2/dists/slink/non-US/binary-$ARCH
	if [ -L crypt++el_2.84-2.deb ] ; then
	    link=`ls -l crypt++el_2.84-2.deb | awk '{print $11}'`
		if [ "$link"x != "../binary-all/crypt++el_2.84-2.deb"x ] ; then
			vecho "Fixing it"
			vecho rm crypt++el_2.84-2.deb
			rm crypt++el_2.84-2.deb
			vecho ln -s ../binary-all/crypt++el_2.84-2.deb
			ln -s ../binary-all/crypt++el_2.84-2.deb
			vecho cd ../binary-all
			cd ../binary-all
			vecho ln -s $NONUS/hamm/binary-all/crypt++el_2.84-2.deb
			ln -s $NONUS/hamm/binary-all/crypt++el_2.84-2.deb
		else
			vecho "You do not have it - good"
		fi
    fi
fi

# Generate the list of files we have
cd $TDIR
rm -f binary targz diffgz dsc

vecho Generating file list:

vecho '   *.deb'
for i in $BINLIST
do
	vecho "      slink$i"
	find slink$i -name *.deb >>binary
done

vecho '   *.tar.gz'
for i in $DISKLIST
do
	vecho "      slink$i"
	find slink$i -name *.tar.gz >>targz
done

vecho '   *.diff.gz'
for i in $DISKLIST
do
	vecho "      slink$i"
	find slink$i -name *.diff.gz >>diffgz
done

vecho '   *.dsc'
for i in $DISKLIST
do
	vecho "      slink$i"
	find slink$i -name *.dsc >>dsc
done

# Now we need to flatten out links pointing outside the tree
if [ $error -eq 0 ] ; then
    if [ "$FLATTEN"x = "1"x ] ; then
		echo FLATTEN:
		vecho Flattening external symlinks
        # This is done in perl.
        cat binary targz diffgz dsc | $BASEDIR/flatten "$MIRROR" "$NONUS" "$VERBOSE"
    fi
fi

# Now do a check for the MD5 sums of all the packages before creating
# the CD images. To avoid the pain of coping with different paths,
# cheat and make sym-links to the real files and compare against
# munged pathnames from the Packages files

if [ $error -eq 0 ] ; then
    if [ "$MD5CHECK"x = "1"x ] ; then
		echo MD5CHECK:
        # First grab all the details from the appropriate Packages files
		vecho Creating MD5 list of packages for comparison
        cd $MIRROR/dists/slink

		# build the list of packages files to read (either compressed or not)
		for SECT in $SECTLIST
		do
			dir=$SECT/binary-$ARCH
			if [ -e $dir/Packages ] ; then
				PFILES="$PFILES $dir/Packages"
			elif [ -e $dir/Packages.gz ]; then
				PFILES="$PFILES $dir/Packages.gz"
			else
				echo "WARNING: no Packages file(s) found for $dir."
			fi
		done

		# -f on zcat allows uncompressed files to be processed as well
		# We find the local list of packages as otherwise the
		# single_disk hack will fail, because of missing files that
		# would have gone on other discs. Unfortunately this means we
		# won't be able to detect missing files... Suggestions?

		echo "   binary"
		(cat $TDIR/binary | sed 's/.*\///g;s/_.*//g' ; cat $BASEDIR/EOP; zcat -f $PFILES) \
			| grep -v '^#' |awk '
			/END_OF_PROCESSING/		{ yes_done++ ; next }
			/.*/	{ if(!yes_done) { yes[$1]=1 ; next } }
			/^Package:/	{package=$2}
			/^Filename:/	{filename[package]=$2}
			/^MD5sum:/	{md5sum[package]=$2;
				gsub(".*/","",filename[package]);
				if(yes[package])
				{
					printf("%32.32s  %s\n",md5sum[package],filename[package])
				}
			}
			' >$TDIR/debcheck_disks.1

		cd $TDIR

        # Now the sym-links
		vecho Creating package sym-links
        rm -rf md5
        mkdir md5
        # Use the list we already generated earlier...
        for file in `cat binary`
        do
			ln -sf ../$file md5
        done

        # Compare
        vecho Comparing sums
        cd md5
        md5sum -c ../debcheck_disks.1
		vecho Checking file sizes
		find . -follow -size 0 >../sizecheck_disks.1
		if [ -s ../sizecheck_disks.1 ] ; then
			echo "   Awooga!"
			echo "   Awooga!"
			echo "   Awooga!"
			echo "   The following files are of zero size:"
			cat ../sizecheck_disks.1
			echo "This is fatal. Exit."
			exit 1
		fi
        cd ..
        rm -rf md5

		echo "   source"
        # Now check source - use the .dsc files
        vecho Creating MD5 list of source files for comparison
        cat `cat dsc` | awk '
			/^-----BEGIN PGP SIGNATURE/ {in_list=0}
			{
			if(in_list) {printf("%32.32s  %s\n",$1,$3)}
			}
			/^Files:/	{in_list=1}
			' >$TDIR/debcheck_disks.2

        # Now the sym-links
        vecho Creating source file sym-links
        if [ -d md5 ] ; then 
			rm -rf md5
        fi
        mkdir md5
        # Use the list we already generated earlier...
        for file in `cat targz diffgz`
        do
			ln -sf ../$file md5
        done

        # Compare
        vecho Comparing sums
        cd md5
        md5sum -c ../debcheck_disks.2
		vecho Checking file sizes
		find . -follow -size 0 >../sizecheck_disks.2
		if [ -s ../sizecheck_disks.2 ] ; then
			echo "   Awooga!"
			echo "   Awooga!"
			echo "   Awooga!"
			echo "   The following files are of zero size:"
			cat ../sizecheck_disks.2
			echo "This is fatal. Exit."
			exit 1
		fi
        cd ..
        rm -rf md5

        # Next we need to look at the boot-disks

        vecho Checking boot disks areas:
        for dir in `find $TDIR | grep disks-$ARCH$`
        do
			cd $dir
			vecho $dir...
			for dir1 in *
			do
				cd $dir1
				vecho $dir/$dir1...
				if [ -e md5sum.txt ] ; then
					md5sum -c md5sum.txt 
				else
					echo WARNING: no md5sum.txt file found in $dir/$dir1
				fi
				cd ..
			done
        done
    fi
fi

if [ $error -eq 0 ] ; then
    if [ "$PACKAGES"x = "1"x ] ; then
		echo PACKAGES:
        cd $TDIR
        rm -vf Packages-{main,contrib,non-US,non-free}.[12345]

        # Create Packages and Packages.cd files	to go on the CDs
        # First lists by section and CD
        for i in $BINLIST
        do
			echo Creating Packages-main for disc $i
			if [ ! -e $MIRROR/indices/override.slink.gz ] ; then
				echo "Override file $MIRROR/indices/override.slink.gz not found. We cannot" 
				echo "generate our Packages file(s) without this file. Check you are mirroring the"
				echo "indices/ directory"
				echo "Exit."
				exit 1
			fi
			(cd $TDIR/slink$i/dists/stable/main && \
				dpkg-scanpackages -m "`cat $TDIR/slink$i/.disk/info`" \
				binary-$ARCH $MIRROR/indices/override.slink.gz \
				dists/stable/main/ > $TDIR/Packages-main.$i)

			if [ "$SINGLE_DISK"x != "1"x ] ; then
				echo Creating Packages-contrib for disc $i
				if [ ! -e $MIRROR/indices/override.slink.contrib.gz ] ; then
					echo "Override file $MIRROR/indices/override.slink.contrib.gz not found. We cannot" 
					echo "generate our Packages file(s) without this file. Check you are mirroring the"
					echo "indices/ directory"
					echo "Exit."
					exit 1
				fi
				(cd $TDIR/slink$i/dists/stable/contrib && \
					dpkg-scanpackages -m "`cat $TDIR/slink$i/.disk/info`" \
					binary-$ARCH $MIRROR/indices/override.slink.contrib.gz \
					dists/stable/contrib/ > $TDIR/Packages-contrib.$i)
			fi

			if [ "$NU"x = "1"x ] ; then
				echo Creating Packages-non-US for disc $i
				# Hmmm, we have a problem here. My non-US mirror has the
				# override file in $NONUS/indices but open has it in
				# $MIRROR/indices (and with a different filename!!!)
				# Check for both in turn...
				OVER_NU=/foo # default catch-all
				if [ -e $NONUS/indices/override.slink.nonus ] ; then
					OVER_NU=$NONUS/indices/override.slink.nonus
				elif [ -e $NONUS/indices/override.slink.nonus.gz ] ; then
					OVER_NU=$NONUS/indices/override.slink.nonus.gz
				elif [ -e $MIRROR/indices/override.non-us.slink ] ; then
					OVER_NU=$MIRROR/indices/override.non-us.slink
				elif [ -e $MIRROR/indices/override.non-us.slink.gz ] ; then
					OVER_NU=$MIRROR/indices/override.non-us.slink.gz
				fi
				if [ ! -e "$OVER_NU" ] ; then
					echo "Override file "$OVER_NU" not found. We cannot" 
					echo "generate our Packages file(s) without this file. Check you are mirroring the"
					echo "indices/ directory"
					echo "Exit."
					exit 1
				fi
				(cd $TDIR/slink$i/dists/stable/non-US && \
					dpkg-scanpackages -m "`cat $TDIR/slink$i/.disk/info`" \
					binary-$ARCH $OVER_NU \
					dists/stable/non-US/ > $TDIR/Packages-non-US.$i)
			fi

			if [ "$NF"x = "1"x ] ; then
				echo Creating Packages-non-free for disc $i
				if [ ! -e $MIRROR/indices/override.slink.non-free.gz ] ; then
					echo "Override file $MIRROR/indices/override.slink.non-free.gz not found. We cannot" 
					echo "generate our Packages file(s) without this file. Check you are mirroring the"
					echo "indices/ directory"
					echo "Exit."
					exit 1
				fi
				(cd $TDIR/slink$i/dists/stable/non-free && \
					dpkg-scanpackages -m "`cat $TDIR/slink$i/.disk/info`" \
					binary-$ARCH $MIRROR/indices/override.slink.non-free.gz \
					dists/stable/non-free/ > $TDIR/Packages-non-free.$i)
			fi
        done

		echo "Checking dependencies"
		echo "   CD #1"
		>/tmp/foo
		$BASEDIR/pkg-order --nocheck-conflicts --nooutput-order --installed-packages /tmp/foo $TDIR/Packages-main.1 >$TDIR/pkg-order.1 2>&1 
		if [ $? -gt 0 ] ; then
			echo "Dependencies of CD #1 cannot be met:"
		    cat $TDIR/pkg-order.1
			if [ "$FORCE_DEPENDS"x != "1"x ] ; then
				echo Exit.
				exit 1
			fi
		else
			echo "      seems OK"
		fi

		if [ "$SINGLE_DISK"x != "1"x ] ; then
			echo "   All CDs"
			# Use sed here to fix broken package Depends: line
			cat $TDIR/Packages* | sed 's/^Suggests:\ metro-motif-devel\ (2/Suggests:\ metro-motif-devel\ (=\ 2/g' >$TDIR/Packages-all
			$BASEDIR/pkg-order --nocheck-conflicts --nooutput-order --check-recommends --installed-packages /tmp/foo $TDIR/Packages-all >$TDIR/pkg-order.2 2>&1 
			if [ $? -gt 0 ] ; then
				echo Dependencies of the CD set cannot be met:
				if [ "$NF"x = 1 -a "$NU"x = 1 ] ; then
					echo "As all sections have been covered, this is fatal..."
					if [ "$FORCE_DEPENDS"x != "1"x ] ; then
						echo Exit.
						exit 1
					fi
				else
					echo "Not all sections have been included on the CD, so this is not fatal."
					echo "However, some packages (especially in the contrib section) will not install"
					echo "correctly."
				fi
			fi
		fi

        # Copy the generated Packages files into place on the
        # appropriate disks, then the Contents files
        for i in $BINLIST
        do

			# First of all, create normal-type Packages files
			for SECT in $SECTLIST
			do
				rm -f slink$i/dists/stable/$SECT/binary-$ARCH/Packages*
				cat Packages-$SECT.$i | \
					grep -v ^X-Medium \
					>slink$i/dists/stable/$SECT/binary-$ARCH/Packages
				cat Packages-$SECT.$i | grep -v ^X-Medium | \
					gzip -9 >slink$i/dists/stable/$SECT/binary-$ARCH/Packages.gz
			done
			
			# Now the Packages.cd files
			vecho slink$i
			
			# Be slightly clever here - only copy Packages data for
			# disc nos. less than or equal to the one we're on - disc
			# 1 will not know about discs 2,5 but 5 will know about
			# both the others. The user should insert the last binary
			# disc they have for initial installation.

			for j in $BINLIST
			do

				if [ $j -le $i ] ; then
					for SECT in $SECTLIST
					do
						if [ -e Packages-$SECT.$j ] ; then
							vecho "   Packages-$SECT.$j"
							cat Packages-$SECT.$j >> \
								slink$i/dists/stable/$SECT/binary-$ARCH/Packages.cd
							cat Packages-$SECT.$j | gzip -9 >> \
								slink$i/dists/stable/$SECT/binary-$ARCH/Packages.cd.gz
						fi
					done
				fi
			done

			vecho "   Contents-$ARCH.gz"
			cp -pl $MIRROR/dists/slink/Contents-$ARCH.gz slink$i/dists/stable
        done
    fi
fi

# Now fix the missing bits

if [ $error -eq 0 ] ; then
    if [ "$BOOT"x = "1"x ] ; then
		echo BOOT:		
        vecho "Making bootable images for $ARCH..."
        cd $TDIR

        mkdir -m 755 slink1/install
        (cd slink1/dists/stable/main/disks-$ARCH/current/ ; \
			cp *.txt *.html $TDIR/slink1/install )

		(cd slink1/doc; 
			for file in ../install/*.{html,txt}; do	ln -s $file; done)

        # Hack for bootable disks
        rm -rf boot1 boot2
        mkdir -p boot1/boot

		case "$ARCH"x in
		"i386"x|"sparc"x|"m68k"x|"alpha"x)
			vecho "ARCH is $ARCH, we know what to do. Continuing..."

			$BASEDIR/boot-$ARCH $MIRROR $BASEDIR $TDIR $ARCH $VERBOSE $BOOTDIR
			if [ $? -gt 0 ] ; then
				echo "boot-$ARCH failed. Exit."
				exit 1
			fi
			;;
		*)
			echo "Oops! We don't know what to do with $ARCH disks yet"
			echo "Leaving bootable CDs alone, you'll need to make boot"
			echo "floppies by hand to install."
			;;
		esac
    fi
fi

# define extra mkisofs flags for CD image creation
# (this part cannot fit in the above section because it is not required to run
# slink_cd with *both* BOOT & IMAGEx options enabled at one time)
cd $TDIR
case "$ARCH"x in
	"i386"x)
		if [ -d boot1 ]; then
			MKISOFS_OPTS_DISC1="-J -b boot/resc1440.bin -c boot/boot.catalog boot1"
		fi
		if [ -d boot2 ]; then
			MKISOFS_OPTS_DISC2="-J -b boot/resc1440tecra.bin -c boot/boot.catalog boot2"
		fi
		;;
	"sparc"x)
		if [ -d boot1 ]; then
			MKISOFS_OPTS_DISC1="boot1"
			# move install tree to correct location
			if [ -d $TDIR/slink1/install ] ; then
				vecho "Moving install to boot1"
				rm -rf $TDIR/boot1/install || true
				mv $TDIR/slink1/install $TDIR/boot1
			fi
		fi
		;;
	"m68k"x)
		if [ -d boot1 ]; then
			MKISOFS_OPTS_DISC1="-b install/bvme6000/resc1440.bin -c install/bvme6000/boot.catalog"
		fi		
		;;
	"alpha"x)
		if [ -d boot1 ]; then
			MKISOFS_OPTS_DISC1="-J boot1"
		fi
		;;
	esac

if [ $error -eq 0 ] ; then
    if [ "$EXTRAS"x = "1"x ] ; then
		echo EXTRAS:
        # Copy some extras onto disks to fill them, e.g. newest 2.1 and 
        # 2.2 kernels and netscape
        vecho Copying extras onto disks:
        cd $TDIR
        for i in $DISKLIST
        do
			if [ -f $TDIR/slink$i.extras ] ; then
				vecho "   slink$i extras:"
				mkdir slink$i/extras
				cp -R `cat $TDIR/slink$i.extras` slink$i/extras
			else
				vecho "   slink$i has no extras"
			fi
        done
    fi
fi

if [ $error -eq 0 ] ; then
    if [ "$MD5LIST"x = "1"x ] ; then
		echo MD5LIST:
        vecho "Generating md5sums for contents of each disk:"
        for i in $DISKLIST
        do
			cd $TDIR/slink$i
			vecho "   Disk $i"
			find . -follow -type f | grep -v "\./md5sum" | grep -v "/dists/stable" | xargs md5sum > md5sum.txt
		done
		# Generate some sizes here. Unfortunately no use at all if we're
		# using a sym-link farm...
		if [ "$GENLINKS" != "1"x ] ; then
			vecho "Generating sizes of the trees"
			cd $TDIR
			du -l >du
		fi
    fi
fi

if [ $error -eq 0 ] ; then

	# Add HFS flags for m68k/powerpc for macs
	if [ "$ARCH"x = "powerpc"x -o "$ARCH"x = "m68k"x ] ; then
		MKISOFS_OPTS="--netatalk -j -hfs -probe -map $BASEDIR/hfs.map $MKISOFS_OPTS"
	fi

    cd $TDIR

	if [ ! -d $OUT ] ; then
		mkdir -p $OUT
	fi

    if [ "$IMAGE1"x = "1"x ] ; then
		echo IMAGE1:
		VOLID1=`cat $TDIR/slink1.volid`
        vecho "Making image of slink1 to $OUT/slink1-$ARCH.raw"
        vecho $MKISOFS $MKISOFS_OPTS -V "$VOLID1" \
			-o $OUT/slink1-$ARCH.raw $MKISOFS_OPTS_DISC1 slink1 
        $MKISOFS $MKISOFS_OPTS -V "$VOLID1" \
			-o $OUT/slink1-$ARCH.raw $MKISOFS_OPTS_DISC1 slink1
    fi

    if [ "$IMAGE2"x = "1"x ] ; then
		echo IMAGE2:
		VOLID2=`cat $TDIR/slink2.volid`
        vecho "Making image of slink2 to $OUT/slink2-$ARCH.raw"
        vecho $MKISOFS $MKISOFS_OPTS -V "$VOLID2" \
	  -o $OUT/slink2-$ARCH.raw $MKISOFS_OPTS_DISC2 slink2
        $MKISOFS $MKISOFS_OPTS -V "$VOLID2" \
	  -o $OUT/slink2-$ARCH.raw $MKISOFS_OPTS_DISC2 slink2
    fi

    if [ "$IMAGE3"x = "1"x ] ; then
		echo IMAGE3:
		VOLID3=`cat $TDIR/slink3.volid`
        vecho "Making image of slink3 to $OUT/slink3.raw"
        vecho $MKISOFS $MKISOFS_OPTS -V "$VOLID3" \
	  -o $OUT/slink3.raw $MKISOFS_OPTS_DISC3 slink3 
        $MKISOFS $MKISOFS_OPTS -V "$VOLID3" \
	  -o $OUT/slink3.raw $MKISOFS_OPTS_DISC3 slink3
    fi

    if [ "$IMAGE4"x = "1"x ] ; then
		echo IMAGE4:
		VOLID4=`cat $TDIR/slink4.volid`
        vecho "Making image of slink4 to $OUT/slink4.raw"
        vecho $MKISOFS $MKISOFS_OPTS -V "$VOLID4" \
	  -o $OUT/slink4.raw $MKISOFS_OPTS_DISC4 slink4 
        $MKISOFS $MKISOFS_OPTS -V "$VOLID4" \
	  -o $OUT/slink4.raw $MKISOFS_OPTS_DISC4 slink4
    fi

    if [ "$IMAGE5"x = "1"x ] ; then
		echo IMAGE5:
		VOLID5=`cat $TDIR/slink5.volid`
        vecho "Making image of slink5 to $OUT/slink5-$ARCH.raw"
		if [ "$NF"x = "1"x ] ; then
        vecho $MKISOFS $MKISOFS_OPTS -V "$VOLID5" \
	  -o $OUT/slink5-$ARCH.raw $MKISOFS_OPTS_DISC5 slink5 
        $MKISOFS $MKISOFS_OPTS -V "$VOLID5" \
	  -o $OUT/slink5-$ARCH.raw $MKISOFS_OPTS_DISC5 slink5
        fi
    fi
fi

# post-process of generated images (eg. to make the CD image bootable on sparc)
if [ $error -eq 0 ] ; then
	if [ "$IMAGE1"x = "1"x ] ; then
		if [ "$ARCH"x = "alpha"x ] ; then
			vecho "Making slink1 image bootable"
			isomarkboot $OUT/slink1-$ARCH.raw /boot/bootlx /dists/slink/main/disks-al/1999-03-/root1440.bin
        fi
		if [ "$ARCH"x = "sparc"x ] ; then
			# temporary mount point (eg. for silo to create the
			# bootable CD image) only needed for Sparc so far...
			vecho Checking for temporary mount point for SILO
			mountpoint=/var/tmp/slink_cd.mnt
			if [ -d $mountpoint ]; then
					umount $mountpoint || true
			else
					mkdir -p $mountpoint
			fi

			vecho "Making slink1 image bootable"
			EXECARCH=`dpkg --print-installation-architecture`
			if [ "$EXECARCH"x = "sparc"x ]; then
				siloprog=silo
			elif [ "$EXECARCH"x = "i386"x ]; then
				siloprog=intelsilo
			fi
			if [ -n "$siloprog" ]; then
				cd1=/boot/debian.txt
				cd2=/install/linux-a.out
				cd3=/install/linux-2.2.1-a.out
				cd4=/install/linux-2.2.1-sun4u-a.out
				cd5=/install/root.bin
				echo "mount -o loop $OUT/slink1-$ARCH.raw $mountpoint"
				mount -o loop $OUT/slink1-$ARCH.raw $mountpoint
				vecho $siloprog -r $mountpoint -c $OUT/slink1-$ARCH.raw \
					-C /boot/silo.conf -l $cd1,$cd2,$cd3,$cd4,$cd5
				$siloprog -r $mountpoint -c $OUT/slink1-$ARCH.raw \
					-C /boot/silo.conf -l $cd1,$cd2,$cd3,$cd4,$cd5
				umount $mountpoint
			else
				echo "Don't know how to make the sparc bootable image on $EXECARCH system!"
			fi
		fi
    fi
fi

if [ "$IMAGESUMS"x = "1"x ] ; then
	echo IMAGESUMS:
    # Let's make md5sums of the images for people who may be
    # downloading them
    cd $OUT
	>MD5SUMS
	vecho Generating md5sums for the CD images:
	for file in *.raw
	do
		vecho "   $file"
		md5sum $file >>MD5SUMS
	done
fi