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# ex:ts=8 sw=4:
# $OpenBSD: Signature.pm,v 1.14 2012/09/01 13:47:34 espie Exp $
#
# Copyright (c) 2010 Marc Espie <espie@openbsd.org>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
use strict;
use warnings;
package OpenBSD::PackageName::Name;
sub long_string
{
my $self = shift;
return '@'.$self->to_string;
}
package OpenBSD::LibObject;
sub long_string
{
my $self = shift;
return $self->to_string;
}
package OpenBSD::PackingElement;
sub signature {}
package OpenBSD::PackingElement::Dependency;
sub signature
{
my ($self, $hash) = @_;
$hash->{$self->{pkgpath}} = OpenBSD::PackageName->from_string($self->{def});
}
package OpenBSD::PackingElement::Wantlib;
sub signature
{
my ($self, $hash) = @_;
my $spec = $self->spec;
if ($spec->is_valid) {
$hash->{$spec->key} = $spec;
}
}
package OpenBSD::Signature;
sub from_plist
{
my ($class, $plist) = @_;
my $k = {};
$plist->visit('signature', $k);
if ($plist->has('always-update')) {
return $class->always->new($plist->pkgname, $k, $plist);
} else {
return $class->new($plist->pkgname, $k);
}
}
sub always
{
return "OpenBSD::Signature::Full";
}
sub new
{
my ($class, $pkgname, $extra) = @_;
bless { name => $pkgname, extra => $extra }, $class;
}
sub string
{
my $self = shift;
return join(',', $self->{name}, sort map {$_->long_string} values %{$self->{extra}});
}
sub compare
{
my ($a, $b) = @_;
return $b->revert_compare($a);
}
sub revert_compare
{
my ($b, $a) = @_;
if ($a->{name} eq $b->{name}) {
my $awins = 0;
my $bwins = 0;
my $done = {};
my $errors = 0;
while (my ($k, $v) = each %{$a->{extra}}) {
if (!defined $b->{extra}{$k}) {
print STDERR "Couldn't find $k in second signature\n";
$errors++;
next;
}
$done->{$k} = 1;
my $r = $v->compare($b->{extra}{$k});
if ($r > 0) {
$awins++;
} elsif ($r < 0) {
$bwins++;
}
}
for my $k (keys %{$b->{extra}}) {
if (!$done->{$k}) {
print STDERR "Couldn't find $k in first signature\n";
$errors++;
}
}
if ($errors) {
$a->print_error($b);
return undef;
}
if ($awins == 0) {
return -$bwins;
} elsif ($bwins == 0) {
return $awins;
} else {
return undef;
}
} else {
return OpenBSD::PackageName->from_string($a->{name})->compare(OpenBSD::PackageName->from_string($b->{name}));
}
}
sub print_error
{
my ($a, $b) = @_;
print STDERR "Error: $a->{name} exists in two non-comparable versions\n";
print STDERR "Someone forgot to bump a REVISION\n";
print STDERR $a->string, " vs. ", $b->string, "\n";
}
package OpenBSD::Signature::Full;
our @ISA=qw(OpenBSD::Signature);
sub new
{
my ($class, $pkgname, $extra, $plist) = @_;
my $o = $class->SUPER::new($pkgname, $extra);
my $hash;
open my $fh, '>', \$hash;
$plist->write_no_sig($fh);
close $fh;
$o->{hash} = $hash;
return $o;
}
sub string
{
my $self = shift;
return join(',', $self->SUPER::string, $self->{hash});
}
sub revert_compare
{
my ($b, $a) = @_;
my $r = $b->SUPER::revert_compare($a);
if (defined $r && $r == 0) {
if ($a->string ne $b->string) {
return undef;
}
}
return $r;
}
sub compare
{
my ($a, $b) = @_;
my $r = $a->SUPER::compare($b);
if (defined $r && $r == 0) {
if ($a->string ne $b->string) {
return undef;
}
}
return $r;
}
1;
|
