debian-cd-clone/tools/fast_sums

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#! /usr/bin/perl -w
eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
if 0; #$running_under_some_shell
# Copyright (c) 2002 Philip Hands <phil@hands.com>
# See the README file for the license
# This script creates the md5sums files, using the precalculated md5sums
# from the main archive
# First arg = the build directory
use strict;
use Digest::MD5;
# load up all the md5sums we need
my %md5 ;
my $BDIR = shift @ARGV ;
foreach my $sumsfile ($BDIR . "/indices/md5sums", $BDIR . "/indices-non-US/md5sums") {
open(MD5SUMS, $sumsfile) || die "Couldn't open file: $sumsfile" ;
while (<MD5SUMS>) {
chomp;
next if /Packages/ ;
next if /Sources/ ;
next if /Release/ ;
my ( $sum, $name ) = split(' ') ;
# printf "[%s] [%s]\n", $sum, $name ;
$md5{$name} = $sum ;
}
close(MD5SUMS);
}
#foreach my $f (keys(%md5)) {
# printf "[%s] [%s]\n", $f, $md5{$f} ;
#}
foreach my $dir (<$BDIR/CD*>) {
chdir $dir ;
open(FILES, "find . -follow \\( -path '*dists/stable*' \\
-o -path '*dists/frozen*' \\
-o -path '*dists/unstable*' \\) -prune \\
-o -type f ! -path '\./md5sum*' -print|" ) || die ;
open(MD5OUT, ">md5sum.txt") || die "Couldn't open file for writing: md5sums.txt, in $dir" ;
while(<FILES>) {
chomp;
s(^\./)() ;
if (!defined($md5{$_})) {
open(FILE, $_) or die "Can't open '$_': $!";
binmode(FILE);
# printf STDERR "md5-ing %s", $_ ;
#$md5{$_} = Digest::MD5->new->addfile(*FILE)->hexdigest ;
printf MD5OUT "%s ./%s\n",
Digest::MD5->new->addfile(*FILE)->hexdigest, $_;
# FIXME:
# the ./ in the printf above is only there to keep byte-for-byte compatibility
# with the find . output used before -- It should probably be removed
#
# printf STDERR ".\n" ;
close(FILE) ;
} else {
printf MD5OUT "%s ./%s\n", $md5{$_}, $_;
}
}
close(MD5OUT) ;
}