debian-cd-clone/tools/scanpackages

#!/bin/sh

# Copyright 1999 Raphaël Hertzog <hertzog@debian.org>
# See the README file for the license

# This script will create the Packages.gz and the Packages.cd files
# First arg = "scan" or "install"
# Second arg = directory of the CD

#set -e

BDIR=$TDIR/$CODENAME-$ARCH

PREFIX=`echo $2 | sed "s?$BDIR/CD?$BDIR/?"`

NUM=${PREFIX##$BDIR/}
NUM=`echo $NUM | sed 's/_NONUS//g'`
if [ -n "$NONFREE" -o -n "$EXTRANONFREE" ]; then
  SECTIONS="main contrib non-free"
  SECTIONSNONUS="non-US/main non-US/contrib non-US/non-free"
else
  SECTIONS="main contrib"
  SECTIONSNONUS="non-US/main non-US/contrib"
fi

cd "$2"

if [ "$1" = "install" ]; then

if [ -e "$MIRROR/dists/$CODENAME/Release" ]; then
    # Strip the MD5Sum and SHA1 fields
    # Update some other information as well
    sed -e "s/^Architectures: .*$/Architectures: $ARCH/" \
    $MIRROR/dists/$CODENAME/Release | \
    sed -e "s|^Components: .*$|Components: $SECTIONS|" | \
    perl -ne 'if (/^(MD5Sum|SHA1):/i) { $f=1; next } 
    if ($f) { 
	unless (/^ /) { print; $f=0 }
    } else { print }' > dists/$CODENAME/Release
fi
if [ -n "$NONUS" -a -e "$NONUS/dists/$CODENAME/non-US/Release" ]; then
    # Strip the MD5Sum and SHA1 fields
    # Update some other information as well
    sed -e "/^ /d" -e "s/^Architectures: .*$/Architectures: $ARCH/" \
    $NONUS/dists/$CODENAME/non-US/Release | \
    sed -e "s|^Components: .*$|Components: $SECTIONSNONUS|" | \
    perl -ne 'if (/^(MD5Sum|SHA1):/i) { $f=1; next } 
    if ($f) { 
	unless (/^ /) { print; $f=0 }
    } else { print }' > dists/$CODENAME/non-US/Release
fi

for SECT in $SECTIONS; do
	# Install the release files
	cp $MIRROR/dists/$CODENAME/$SECT/binary-$ARCH/Release \
   		dists/$CODENAME/$SECT/binary-$ARCH/
	if [ -n "$NONUS" ]; then
		cp $NONUS/dists/$CODENAME/non-US/$SECT/binary-$ARCH/Release \
		   dists/$CODENAME/non-US/$SECT/binary-$ARCH/
	fi
	# Install the Packages and Packages.gz files
	cp $PREFIX.Packages-$SECT dists/$CODENAME/$SECT/binary-$ARCH/Packages
	cat $PREFIX.Packages-$SECT | gzip --best \
	     >dists/$CODENAME/$SECT/binary-$ARCH/Packages.gz
	if [ -n "$NONUS" ]; then
		cp $PREFIX.Packages-non-US-$SECT \
		     dists/$CODENAME/non-US/$SECT/binary-$ARCH/Packages
		cat $PREFIX.Packages-non-US-$SECT | gzip --best \
		     >dists/$CODENAME/non-US/$SECT/binary-$ARCH/Packages.gz
	fi
done

if [ -n "$LOCAL" ]; then
	if [ -e ${LOCALDEBS:-$MIRROR}/dists/$CODENAME/local/binary-$ARCH/Release ]; then
	   cp ${LOCALDEBS:-$MIRROR}/dists/$CODENAME/local/binary-$ARCH/Release \
   		dists/$CODENAME/local/binary-$ARCH/
	fi
	cp $PREFIX.Packages-local dists/$CODENAME/local/binary-$ARCH/Packages
	cat $PREFIX.Packages-local | gzip --best \
	     >dists/$CODENAME/local/binary-$ARCH/Packages.gz
fi


fi

# Creates the temp Packages-$SECT files
if [ "$1" != "scan" ]; then exit 0; fi


if [ ! -e "../overrides" ]; then
    # Create an override file with all sections
    for SECT in $SECTIONS; do
	zcat $MIRROR/indices/override.$CODENAME.$SECT.gz >> ../overrides
	if [ -n "$NONUS" ]; then
	    zcat $NONUS/indices-non-US/override.$CODENAME.$SECT.gz \
	    	 >> ../overrides
	fi
    done
fi
if [ ! -e "../overrides.extra" ]; then
    # Create an extra override file with all sections
    for SECT in $SECTIONS; do
	if [ -e $MIRROR/indices/override.$CODENAME.extra.$SECT.gz ]; then
	    zcat $MIRROR/indices/override.$CODENAME.extra.$SECT.gz \
		>> ../overrides.extra
	fi
	if [ -n "$NONUS" ]; then
	    if [ -e $NONUS/indices-non-US/override.$CODENAME.extra.gz ]; then
	       zcat $NONUS/indices-non-US/override.$CODENAME.extra.$SECT.gz \
	    	 >> ../overrides.extra
	    fi
	fi
    done
fi

#
# Create a Packages file for all packages on the CD
#
if [ -d pool ]; then
    apt-ftparchive -o Tree::ExtraOverride=../overrides.extra \
	packages pool ../overrides > $PREFIX.Packages-BOTH
fi
# We have to scan all possible dists where packages can be
DISTS=""
DISTSNONUS=""
for i in `cd dists; echo *; cd ..`; do
    if [ ! -L "dists/$i" -a -d "dists/$i" ]; then
	if [ -d "dists/$i/main/binary-$ARCH" -o \
	     -d "dists/$i/non-free/binary-$ARCH" -o \
	     -d "dists/$i/contrib/binary-$ARCH" ]; then
	    DISTS="$DISTS $i"
	fi
	if [ -d "dists/$i/non-US/main/binary-$ARCH" -o \
	     -d "dists/$i/non-US/non-free/binary-$ARCH" -o \
	     -d "dists/$i/non-US/contrib/binary-$ARCH" ]; then
	    DISTSNONUS="$DISTSNONUS $i"
	fi
    fi
done
for SECT in $SECTIONS; do
    for DIST in $DISTS; do
	apt-ftparchive -o Tree::ExtraOverride=../overrides.extra \
	    packages dists/$DIST/$SECT/binary-$ARCH ../overrides \
	    >> $PREFIX.Packages-BOTH
    done
    for DIST in $DISTSNONUS; do
	if [ -n "$NONUS" ]; then
	    apt-ftparchive -o Tree::ExtraOverride=../overrides.extra \
		    packages dists/$DIST/non-US/$SECT/binary-$ARCH \
		    ../overrides >> $PREFIX.Packages-BOTH
	fi
    done
done
# Separate non-US from the rest
grep-dctrl -FFilename -e '/non-[Uu][Ss]/' $PREFIX.Packages-BOTH \
	> $PREFIX.Packages-ALLNONUS
grep-dctrl -v -FFilename -e '/non-[Uu][Ss]/' $PREFIX.Packages-BOTH \
	> $PREFIX.Packages-ALL

# Split the Packages file by section
for SECT in $SECTIONS; do
    grep-dctrl -FFilename -e "/$SECT/" $PREFIX.Packages-ALL \
    	> $PREFIX.Packages-$SECT
    
    if [ -n "$NONUS" ]; then
	grep-dctrl -FFilename -e "/$SECT/" $PREFIX.Packages-ALLNONUS \
		> $PREFIX.Packages-non-US-$SECT
    fi
done

if [ -n "$LOCAL" ]; then
	apt-ftparchive -o Tree::ExtraOverride=../overrides.extra \
	     packages dists/$CODENAME/local/binary-$ARCH \
	     > $PREFIX.Packages-local

	if [ -d pool/local ]
	then
	    apt-ftparchive -o Tree::ExtraOverride=../overrides.extra \
		 packages pool/local >> $PREFIX.Packages-local
	fi
fi

exit 0