/usr/share/perl5/Dpkg/BuildProfiles.pm is in libdpkg-perl 1.18.4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | # Copyright © 2013 Guillem Jover <guillem@debian.org>
#
# 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 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 <https://www.gnu.org/licenses/>.
package Dpkg::BuildProfiles;
use strict;
use warnings;
our $VERSION = '1.00';
our @EXPORT_OK = qw(
get_build_profiles
set_build_profiles
parse_build_profiles
evaluate_restriction_formula
);
use Exporter qw(import);
use Dpkg::Util qw(:list);
use Dpkg::BuildEnv;
my $cache_profiles;
my @build_profiles;
=encoding utf8
=head1 NAME
Dpkg::BuildProfiles - handle build profiles
=head1 DESCRIPTION
The Dpkg::BuildProfiles module provides functions to handle the build
profiles.
=head1 FUNCTIONS
=over 4
=item @profiles = get_build_profiles()
Get an array with the currently active build profiles, taken from
the environment variable B<DEB_BUILD_PROFILES>.
=cut
sub get_build_profiles {
return @build_profiles if $cache_profiles;
if (Dpkg::BuildEnv::has('DEB_BUILD_PROFILES')) {
@build_profiles = split /\s+/, Dpkg::BuildEnv::get('DEB_BUILD_PROFILES');
}
$cache_profiles = 1;
return @build_profiles;
}
=item set_build_profiles(@profiles)
Set C<@profiles> as the current active build profiles, by setting
the environment variable B<DEB_BUILD_PROFILES>.
=cut
sub set_build_profiles {
my (@profiles) = @_;
$cache_profiles = 1;
@build_profiles = @profiles;
Dpkg::BuildEnv::set('DEB_BUILD_PROFILES', join ' ', @profiles);
}
=item @profiles = parse_build_profiles($string)
Parses a build profiles specification, into an array of array references.
=cut
sub parse_build_profiles {
my $string = shift;
$string =~ s/^\s*<(.*)>\s*$/$1/;
return map { [ split /\s+/ ] } split />\s+</, $string;
}
=item evaluate_restriction_formula(\@formula, \@profiles)
Evaluate whether a restriction formula of the form "<foo bar> <baz>", given as
a nested array, is true or false, given the array of enabled build profiles.
=cut
sub evaluate_restriction_formula {
my ($formula, $profiles) = @_;
# Restriction formulas are in disjunctive normal form:
# (foo AND bar) OR (blub AND bla)
foreach my $restrlist (@{$formula}) {
my $seen_profile = 1;
foreach my $restriction (@$restrlist) {
next if $restriction !~ m/^(!)?(.+)/;
my $negated = defined $1 && $1 eq '!';
my $profile = $2;
my $found = any { $_ eq $profile } @{$profiles};
# If a negative set profile is encountered, stop processing.
# If a positive unset profile is encountered, stop processing.
if ($found == $negated) {
$seen_profile = 0;
last;
}
}
# This conjunction evaluated to true so we don't have to evaluate
# the others.
return 1 if $seen_profile;
}
return 0;
}
=back
=head1 CHANGES
=head2 Version 1.00 (dpkg 1.17.17)
Mark the module as public.
=cut
1;
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