aboutsummaryrefslogtreecommitdiff
path: root/paludis/match_package.cc
blob: 950d473c5b4d2060f9626fad03b32f50cd183fba (plain)
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
/* vim: set sw=4 sts=4 et foldmethod=syntax : */

/*
 * Copyright (c) 2006, 2007 Ciaran McCreesh <ciaranm@ciaranm.org>
 *
 * This file is part of the Paludis package manager. Paludis is free software;
 * you can redistribute it and/or modify it under the terms of the GNU General
 * Public License version 2, as published by the Free Software Foundation.
 *
 * Paludis 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, write to the Free Software Foundation, Inc., 59 Temple
 * Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <paludis/match_package.hh>
#include <paludis/dep_spec.hh>
#include <paludis/dep_spec_flattener.hh>
#include <paludis/environment.hh>
#include <paludis/version_requirements.hh>
#include <paludis/package_database.hh>
#include <paludis/package_id.hh>
#include <paludis/util/visitor-impl.hh>
#include <paludis/util/tr1_functional.hh>
#include <libwrapiter/libwrapiter_forward_iterator.hh>
#include <algorithm>

using namespace paludis;

bool
paludis::match_package(
        const Environment & env,
        const PackageDepSpec & spec,
        const PackageID & entry)
{
    if (spec.package_ptr() && *spec.package_ptr() != entry.name())
        return false;

    if (spec.package_name_part_ptr() && *spec.package_name_part_ptr() != entry.name().package)
        return false;

    if (spec.category_name_part_ptr() && *spec.category_name_part_ptr() != entry.name().category)
        return false;

    if (spec.version_requirements_ptr())
        switch (spec.version_requirements_mode())
        {
            case vr_and:
                for (VersionRequirements::ConstIterator r(spec.version_requirements_ptr()->begin()),
                        r_end(spec.version_requirements_ptr()->end()) ; r != r_end ; ++r)
                    if (! r->version_operator.as_version_spec_comparator()(entry.version(), r->version_spec))
                        return false;
                break;

            case vr_or:
                {
                    bool matched(false);
                    for (VersionRequirements::ConstIterator r(spec.version_requirements_ptr()->begin()),
                            r_end(spec.version_requirements_ptr()->end()) ; r != r_end ; ++r)
                        if (r->version_operator.as_version_spec_comparator()(entry.version(), r->version_spec))
                        {
                            matched = true;
                            break;
                        }

                    if (! matched)
                        return false;
                }
                break;

            case last_vr:
                ;
        }

    if (spec.repository_ptr())
        if (*spec.repository_ptr() != entry.repository()->name())
            return false;

    if (spec.slot_ptr())
        if (*spec.slot_ptr() != entry.slot())
            return false;

    if (spec.use_requirements_ptr())
    {
        for (UseRequirements::ConstIterator u(spec.use_requirements_ptr()->begin()),
                u_end(spec.use_requirements_ptr()->end()) ; u != u_end ; ++u)
        {
            switch (u->second)
            {
                case use_unspecified:
                    continue;

                case use_enabled:
                    if (! env.query_use(u->first, entry))
                        return false;
                    continue;

                case use_disabled:
                    if (env.query_use(u->first, entry))
                        return false;
                    continue;

                case last_use:
                    ;
            }
            throw InternalError(PALUDIS_HERE, "bad UseFlagState");
        }
    }

    return true;
}

bool
paludis::match_package_in_set(
        const Environment & env,
        const SetSpecTree::ConstItem & target,
        const PackageID & entry)
{
    using namespace tr1::placeholders;

    DepSpecFlattener<SetSpecTree, PackageDepSpec> f(&env, entry);
    target.accept(f);
    return indirect_iterator(f.end()) != std::find_if(
            indirect_iterator(f.begin()), indirect_iterator(f.end()),
            tr1::bind(&match_package, tr1::cref(env), _1, tr1::cref(entry)));
}