1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
# Copyright © 1998 Richard Braakman
# Copyright © 1999 Darren Benham
# Copyright © 2000 Sean 'Shaleh' Perry
# Copyright © 2004 Frank Lichtenheld
# Copyright © 2006 Russ Allbery
# Copyright © 2007-2009 Raphaël Hertzog <hertzog@debian.org>
# Copyright © 2008-2009, 2012-2014 Guillem Jover <guillem@debian.org>
#
# This program is free software; you may 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 of the License, or
# (at your option) any later version.
#
# This 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 <https://www.gnu.org/licenses/>.
=encoding utf8
=head1 NAME
Dpkg::Deps::KnownFacts - list of installed real and virtual packages
=head1 DESCRIPTION
This class represents a list of installed packages and a list of virtual
packages provided (by the set of installed packages).
=cut
package Dpkg::Deps::KnownFacts 2.00;
use v5.36;
use Dpkg::Version;
=head1 METHODS
=over 4
=item $facts = Dpkg::Deps::KnownFacts->new();
Creates a new object.
=cut
sub new {
my $this = shift;
my $class = ref($this) || $this;
my $self = {
pkg => {},
virtualpkg => {},
};
bless $self, $class;
return $self;
}
=item $facts->add_installed_package($package, $version, $arch, $multiarch)
Records that the given version of the package is installed. If
$version/$arch is undefined we know that the package is installed but we
don't know which version/architecture it is. $multiarch is the Multi-Arch
field of the package. If $multiarch is undef, it will be equivalent to
"Multi-Arch: no".
Note that $multiarch is only used if $arch is provided.
=cut
sub add_installed_package {
my ($self, $pkg, $ver, $arch, $multiarch) = @_;
my $p = {
package => $pkg,
version => $ver,
architecture => $arch,
multiarch => $multiarch // 'no',
};
$self->{pkg}{"$pkg:$arch"} = $p if defined $arch;
push @{$self->{pkg}{$pkg}}, $p;
}
=item $facts->add_provided_package($virtual, $relation, $version, $by)
Records that the "$by" package provides the $virtual package. $relation
and $version correspond to the associated relation given in the Provides
field (if present).
=cut
sub add_provided_package {
my ($self, $pkg, $rel, $ver, $by) = @_;
my $v = {
package => $pkg,
relation => $rel,
version => $ver,
provider => $by,
};
$self->{virtualpkg}{$pkg} //= [];
push @{$self->{virtualpkg}{$pkg}}, $v;
}
## Private functions.
#
# Note: The functions below are private to Dpkg::Deps::KnownFacts.
sub _find_package {
my ($self, $dep, $lackinfos) = @_;
my ($pkg, $archqual) = ($dep->{package}, $dep->{archqual});
return if not exists $self->{pkg}{$pkg};
my $host_arch = $dep->{host_arch} // Dpkg::Arch::get_host_arch();
my $build_arch = $dep->{build_arch} // Dpkg::Arch::get_build_arch();
foreach my $p (@{$self->{pkg}{$pkg}}) {
my $a = $p->{architecture};
my $ma = $p->{multiarch};
if (not defined $a) {
$$lackinfos = 1;
next;
}
if (not defined $archqual) {
return $p if $ma eq 'foreign';
return $p if $a eq $host_arch or $a eq 'all';
} elsif ($archqual eq 'any') {
return $p if $ma eq 'allowed';
} elsif ($archqual eq 'native') {
return if $ma eq 'foreign';
return $p if $a eq $build_arch or $a eq 'all';
} else {
return $p if $a eq $archqual;
}
}
return;
}
sub _find_virtual_packages {
my ($self, $pkg) = @_;
return () if not exists $self->{virtualpkg}{$pkg};
return @{$self->{virtualpkg}{$pkg}};
}
=item $facts->evaluate_simple_dep()
This method is private and should not be used except from within L<Dpkg::Deps>.
=cut
sub evaluate_simple_dep {
my ($self, $dep) = @_;
my ($lackinfos, $pkg) = (0, $dep->{package});
my $p = $self->_find_package($dep, \$lackinfos);
if ($p) {
if (defined $dep->{relation}) {
if (defined $p->{version}) {
return 1 if version_compare_relation($p->{version},
$dep->{relation},
$dep->{version});
} else {
$lackinfos = 1;
}
} else {
return 1;
}
}
foreach my $virtpkg ($self->_find_virtual_packages($pkg)) {
next if defined $virtpkg->{relation} and
$virtpkg->{relation} ne REL_EQ;
if (defined $dep->{relation}) {
next if not defined $virtpkg->{version};
return 1 if version_compare_relation($virtpkg->{version},
$dep->{relation},
$dep->{version});
} else {
return 1;
}
}
return if $lackinfos;
return 0;
}
=back
=head1 CHANGES
=head2 Version 2.00 (dpkg 1.20.0)
Remove method: $facts->check_package().
=head2 Version 1.01 (dpkg 1.16.1)
New option: $facts->add_installed_package() now accepts 2
supplementary parameters ($arch and $multiarch).
Deprecated method: $facts->check_package() is obsolete,
it should not have been part of the public API.
=head2 Version 1.00 (dpkg 1.15.6)
Mark the module as public.
=cut
1;
|
