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# ex:ts=8 sw=4:
# $OpenBSD: PkgSpec.pm,v 1.19 2009/03/07 12:07:37 espie Exp $
#
# Copyright (c) 2003-2007 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::PkgSpec;
use OpenBSD::PackageName;
sub check_version
{
my ($v, $constraint_list) = @_;
for my $c (@$constraint_list) {
return 0 if $c->match($v) == 0;
}
return 1;
}
sub check_1flavor
{
my ($f, $spec) = @_;
for my $_ (split /\-/o, $spec) {
# must not be here
if (m/^\!(.*)$/o) {
return 0 if $f->{$1};
# must be here
} else {
return 0 unless $f->{$_};
}
}
return 1;
}
sub check_flavor
{
my ($h, $spec) = @_;
# no flavor constraints
return 1 if $spec eq '';
$spec =~ s/^-//o;
# check each flavor constraint
for my $_ (split /\,/o, $spec) {
if (check_1flavor($h, $_)) {
return 1;
}
}
return 0;
}
sub subpattern_match
{
my ($p, $list) = @_;
# let's try really hard to find the stem and the flavors
unless ($p =~ m/^(.*?)\-((?:(?:\>|\>\=|\<\=|\<|\=)?\d|\*)[^-]*)(.*)$/) {
die "Invalid spec $p";
}
my ($stemspec, $vspec, $flavorspec) = ($1, $2, $3);
$stemspec =~ s/\./\\\./go;
$stemspec =~ s/\+/\\\+/go;
$stemspec =~ s/\*/\.\*/go;
$stemspec =~ s/\?/\./go;
$stemspec =~ s/^(\\\.libs)\-/$1\\d*\-/go;
# First trim down the list
my @l = grep {/^$stemspec-.*$/} @$list;
# turn the vspec into a list of constraints.
my @constraints = ();
if ($vspec eq '*') {
# non constraint
} else {
for my $c (split /\,/, $vspec) {
push(@constraints,
OpenBSD::PackageName::versionspec->from_string($c));
}
}
my @result = ();
# Now, have to extract the version number, and the flavor...
for my $s (@l) {
my $name = OpenBSD::PackageName->from_string($s);
if ($name->{stem} =~ m/^$stemspec$/ &&
check_flavor($name->{flavors}, $flavorspec) &&
check_version($name->{version}, \@constraints)) {
push(@result, $s);
}
}
return @result;
}
1;
|
