debian-cd-clone/tools/grab_md5

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#!/bin/sh
#
# grab_md5
# (c) 2004 Steve McIntyre <steve@einval.com>
#
# GPL v2
#
# Parse Packages and Sources files out of a mirror and pre-process
# them into a single list ready for mkisofs to check later
set -e
MIRROR=$1
ARCHES="$2"
CODENAME=$3
DI_CODENAME=$4
OUT=$5
for ARCH in $ARCHES
do
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LOCATIONS="$MIRROR/dists/$CODENAME/ $MIRROR/dists/$DI_CODENAME/"
echo "Looking in $LOCATIONS"
for LOCATION in $LOCATIONS; do
if [ ! -d $LOCATION ]; then
echo "Error: $LOCATION is not a directory"
exit 1
fi
done
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case $ARCH in
source)
FILES=`find $LOCATIONS -name Sources.gz`
echo "Using MD5 sums from Sources files:"
echo $FILES
zcat -f $FILES | MIRROR=$MIRROR perl -ne '
chomp;
my %files;
my $dir;
my $mirror = $ENV{"MIRROR"};
my $filename;
while (<>) {
if (m/^ ([[:xdigit:]]{32}) (\d+) (\S+)/sg) {
$files{$3}{"md5"} = $1;
$files{$3}{"size"} = $2;
}
if (m/^Directory: (\S+)/sg) {
$dir = $1;
}
if (m/^$/) {
for $filename (keys %files) {
printf("%s %12s %s/%s/%s\n",
$files{$filename}{"md5"},
$files{$filename}{"size"},
$mirror, $dir, $filename);
}
undef %files;
}
}' | sort | uniq >> $OUT
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;;
*)
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FILES=`find $LOCATIONS -name Packages.gz | grep binary-$ARCH`
echo "Using MD5 sums from Packages files:"
echo $FILES
NUM_FILES=`echo $FILES | wc -w`
if [ $NUM_FILES -eq 1 ] ; then
echo "No files found for arch $ARCH. Abort!"
exit 1
fi
zcat -f $FILES | MIRROR=$MIRROR perl -ne '
chomp;
my $mirror = $ENV{"MIRROR"};
my $filename;
my $size;
my $md5;
while (<>) {
if (m/^Filename: (\S+)/sg) {
$filename = $1;
}
if (m/^Size: (\S+)/sg) {
$size = $1;
}
if (m/^MD5sum: (\S+)/sg) {
$md5 = $1;
}
if (m/^$/) {
printf("%s %12s %s/%s\n", $md5, $size, $mirror, $filename);
}
}' | sort | uniq >> $OUT
# Use the new D-I images. Do NOT use the "current"
# link; it causes problems with overlaid files...
for VER in $MIRROR/dists/$DI_CODENAME/main/installer-$ARCH/*
do
if [ -d $VER ] && [ ! -L $VER ] ; then
FILE=$VER/images/MD5SUMS
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echo "Using MD5 sums from d-i: $FILE"
LOC=dists/$DI_CODENAME/main/installer-$ARCH/`basename $VER`/images
for ENTRY in `cat $FILE | sed 's/ /:/g'`
do
PATH=`echo $ENTRY | /bin/sed "s?^.*:\./?$MIRROR/$LOC/?g"`
MD5=`echo $ENTRY | /bin/sed 's/:.*$//g'`
SIZE=`/usr/bin/stat -c %s $PATH`
printf '%s %12.12s %s\n' $MD5 $SIZE $PATH
done | sort | uniq >> $OUT
fi
done
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;;
esac
done
exit 0