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|
#!/usr/bin/perl
=pod
=head1 Name
emprunecross - Identify cross dependencies installed by dpkg-cross
=head1 Copyright and Licence
Copyright (C) 2007 Neil Williams <codehelp@debian.org>
This package 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 3 of the License, 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, see <http://www.gnu.org/licenses/>.
=cut
use File::Basename;
use Debian::DpkgCross;
use Emdebian::Tools;
use Term::ANSIColor qw(:constants);
use strict;
use warnings;
use vars qw/ $arch %chain %prune $target_gnu_type $suite $list $status
$success @cross %chain $crosslist $progname $string $cmd $dryrun
$our_version $unpacked /;
$dryrun = 0;
$progname = basename($0);
$our_version = &tools_version();
&read_config();
$arch = &get_architecture();
sub usageversion {
print(STDERR <<END)
$progname version $our_version
Usage:
$progname [-n|--dry-run|--simulate] [-a|--arch ARCH]
$progname -?|-h|--help|--version
Commands:
-n|--dry-run|--simulate: Do a dry-run, do not change anything.
-a|--arch ARCH: Set architecture (default: defined by dpkg-cross)
-?|-h|--help: Print this usage message and exit
--version: Print this usage message and exit
END
|| die "$0: failed to write usage: $!\n";
exit 0;
}
while( @ARGV ) {
$_= shift( @ARGV );
last if m/^--$/;
if (!/^-/) {
unshift(@ARGV,$_);
last;
}
elsif (/^(-\?|-h|--help|--version)$/) {
&usageversion();
exit( 0 );
}
elsif (/^(-n|--dry-run|--simulate)$/) {
$dryrun++;
}
elsif (/^(-a|--arch)$/) {
$arch = shift(@ARGV);
}
else {
die RED, "$progname: Unknown option $_.", RESET, "\n";
}
}
$target_gnu_type = &check_arch($arch);
die (RED, "\n$progname: Cannot determine the architecture to check.", RESET, "\n\n")
if ((not defined $arch)||($arch eq "")||(not defined $target_gnu_type));
$suite = &get_targetsuite;
$list = &prepare_checklist($arch, $target_gnu_type);
$status = 'install ok installed';
$unpacked = 'install ok unpacked';
$success = "";
$string = " ";
%chain=();
foreach my $res (sort @$list)
{
$success = `dpkg-query -W -f='\${Package} \${Status}' $res 2>/dev/null`;
$string = "$res $status";
$chain{$res}++ if ($success eq $string);
}
$crosslist = `dpkg-query -W -f='\${Package} \${Status}\n' \'*-$arch-cross\'`;
@cross = split(/\n/, $crosslist);
foreach my $c (@cross)
{
next if (($c !~ / $status$/) and ($c !~ / $unpacked/));
$c =~ s/ $status$//;
$c =~ s/ $unpacked//;
chomp($c);
next if (defined $chain{$c});
next if ($c =~ /^libc6.*$arch-cross/);
$prune{$c}++;
}
if (scalar keys %prune > 0)
{
my $plural = (scalar keys %prune == 1) ? "package" : "packages";
print RED, "Removing $plural\n", RESET;
if ($dryrun > 0)
{
$cmd = join("\n", sort keys %prune);
print "$cmd\n";
exit(0);
}
$cmd = join(" ", sort keys %prune);
system ("sudo dpkg -P $cmd");
}
=head1 Description
Removes or just prints the complete list of packages that have been
installed by dpkg-cross (whether using dpkg-cross directly or via
apt-cross or emdebian-tools) for the selected architecture or dpkg-cross
default architecture.
This functionality cannot just be merged into apt-cross because that would
remove cross packages used by the Emdebian toolchain.
=head1 Commands and options
-a|--arch
Override the dpkg-cross default architecture.
-n|--dry-run|--simulate
Only print the list, do not call 'sudo dpkg -P'
=cut
|
