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#!/usr/bin/perl

#- Mandrake cryptographic package hdlist and depslist generation tools.
#- Copyright (C) 1999-2005 Mandriva (fpons@mandriva.com)
#-
#- This program is free software; you can redistribute it and/or modify
#- it under the terms of the GNU General Public License as published by
#- the Free Software Foundation; either version 2, or (at your option)
#- any later version.
#-
#- This program is distributed in the hope that it will be useful,
#- but WITHOUT ANY WARRANTY; without even the implied warranty of
#- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#- GNU General Public License for more details.
#-
#- You should have received a copy of the GNU General Public License
#- along with this program; if not, write to the Free Software
#- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

#- usage: gencryptofiles <crypto_dir>
#- build an hdlist and depslist file for crypto, need rpmtools also.

my %resolver = (
		'/bin/sh'           => 'bash',
		'/bin/bash'         => 'bash',
		'/usr/bin/perl'     => 'perl',
		'/usr/bin/perl5'    => 'perl',

		'libBrokenLocale.so' => 'glibc',
		'libICE.so'         => 'XFree86-libs',
		'libSM.so'          => 'XFree86-libs',
		'libX11.so'         => 'XFree86-libs',
		'libXext.so'        => 'XFree86-libs',
		'libXmu.so'         => 'XFree86-libs',
		'libXpm.so'         => 'xpm',
		'libXt.so'          => 'XFree86-libs',
		'libc.so.6'         => 'glibc',
		'libgdbm.so'        => 'gdbm',
		'libgpm.so'         => 'gpm',
		'libm.so'           => 'glibc',
		'libncurses.so'     => 'ncurses',
		'libnsl.so'         => 'glibc',
		'libpam.so'         => 'pam',
		'libpthread.so'     => 'glibc',
		'libreadline.so'    => 'readline',
		'libstdc++-libc6.1-2.so' => 'libstdc++',
		'libstdc++.so'      => 'libstdc++-compat',
		'libutil.so'        => 'glibc',
		'libz.so'           => 'zlib',
		'smtpdaemon'        => 'postfix',
	       );

sub gendepslist_crypto {
    my ($dir) = @_;
    my %depslist;

    #- get information about each rpm.
    local *DIR;
    opendir DIR, $dir or die "cannot open directory: $!\n";
    while ($_ = readdir DIR) {
	my ($key) = /(.*)\..*\.rpm$/ or next;
	my ($name) = /(.*)-[^-]*-[^-]*-/;

	my $size = `rpm -qp --queryformat="%{SIZE}" $dir/$_`;
	my @filelist = split "\n", `rpm -qpl $dir/$_`;
	my @requires = split "\n", `rpm -qpR $dir/$_`;

	$depslist{$key} = {
			   key      => $key,
			   size     => $size,
			   filelist => \@filelist,
			   requires => \@requires,
			   deps     => [],
			  };

	foreach (@filelist) {
	    $resolver{$_} = $name;
	    m|.*/([^/]*)$| and $resolver{$1} = $name;
	}
    }
    close DIR;

    #- resolve the dependancies.
    foreach my $pkg (values %depslist) {
	foreach (@{$pkg->{requires}}) {
	    $resolver{$_} and push(@{$pkg->{deps}}, $resolver{$_}), next;
	    m|^([^\s\(]*)| and $resolver{$1} and push(@{$pkg->{deps}}, $resolver{$1}), next;
	    m|^.*/([^/\s\(]*)| and $resolver{$1} and push(@{$pkg->{deps}}, $resolver{$1}), next;
	    m|^([^\s\(]*\.so)| and $resolver{$1} and push(@{$pkg->{deps}}, $resolver{$1}), next;
	    m|^.*/([^\s\(]*\.so)| and $resolver{$1} and push(@{$pkg->{deps}}, $resolver{$1}), next;
	    m|^([\w-]*)(?:\s+.*)$| and push(@{$pkg->{deps}}, $1); #- last and default to package name.
	}
    }

    #- build depslist-crypto file.
    local *F;
    open F, ">$dir/depslist-crypto" or die "cannot open depslist-crypto file for writing: $!\n";
    foreach (values %depslist) {
	my %deps;
	@deps{@{$_->{deps}}} = ();
	print F "$_->{key} $_->{size} ", join(" ", keys %deps), "\n";
    }
    close F;
}

sub main {
    my ($dir) = @_;
    -d $dir or die "usage: gencryptofiles <crypto_dir>\n";
    -x "/usr/bin/genhdlist_cz2" or die "I need rpmtools to work (ie /usr/bin/genhdlist_cz2)\n";

    print `genhdlist_cz2 -o $dir/hdlist-crypto.cz2 $dir`;
    gendepslist_crypto($dir);
}

main(@ARGV);