aboutsummaryrefslogtreecommitdiff
path: root/paludis/environments/paludis/package_mask_conf.cc
blob: ae82223d5a04980bda96d1b0becd76f038fdde24 (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
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
/* vim: set sw=4 sts=4 et foldmethod=syntax : */

/*
 * Copyright (c) 2007, 2008, 2009, 2010, 2011, 2013 Ciaran McCreesh
 *
 * 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 "package_mask_conf.hh"
#include <paludis/environment.hh>
#include <paludis/name.hh>
#include <paludis/dep_spec.hh>
#include <paludis/spec_tree.hh>
#include <paludis/user_dep_spec.hh>
#include <paludis/match_package.hh>
#include <paludis/util/config_file.hh>
#include <paludis/package_id.hh>
#include <paludis/environments/paludis/paludis_environment.hh>
#include <paludis/environments/paludis/bashable_conf.hh>
#include <paludis/util/log.hh>
#include <paludis/util/wrapped_forward_iterator.hh>
#include <paludis/util/options.hh>
#include <paludis/util/tokeniser.hh>
#include <paludis/util/pimp-impl.hh>
#include <paludis/util/indirect_iterator-impl.hh>
#include <paludis/util/hashes.hh>
#include <paludis/util/make_null_shared_ptr.hh>
#include <algorithm>
#include <functional>
#include <list>
#include <mutex>
#include <set>
#include <vector>

using namespace paludis;
using namespace paludis::paludis_environment;

typedef std::list<std::pair<SetName, std::pair<std::shared_ptr<const SetSpecTree>, std::set<std::string> > > > Sets;

namespace paludis
{
    template<>
    struct Imp<PackageMaskConf>
    {
        const PaludisEnvironment * const env;
        const bool allow_reasons;
        std::list<std::pair<std::shared_ptr<const PackageDepSpec>, std::set<std::string> > > masks;
        mutable Sets sets;
        mutable std::mutex set_mutex;

        Imp(const PaludisEnvironment * const e, const bool a) :
            env(e),
            allow_reasons(a)
        {
        }
    };
}

PackageMaskConf::PackageMaskConf(const PaludisEnvironment * const e, const bool a) :
    _imp(e, a)
{
}

PackageMaskConf::~PackageMaskConf()
{
}

void
PackageMaskConf::add(const FSPath & filename)
{
    Context context("When adding source '" + stringify(filename) + "' as a package mask or unmask file:");

    std::shared_ptr<LineConfigFile> f(make_bashable_conf(filename, { }));
    if (! f)
        return;

    for (LineConfigFile::ConstIterator line(f->begin()), line_end(f->end()) ;
            line != line_end ; ++line)
    {
        std::vector<std::string> tokens;
        tokenise_whitespace(*line, std::back_inserter(tokens));

        if (tokens.empty())
            continue;

        std::string spec(tokens.at(0));
        tokens.erase(tokens.begin(), tokens.begin() + 1);

        std::set<std::string> reasons(tokens.begin(), tokens.end());
        if ((! reasons.empty()) && (! _imp->allow_reasons))
            throw ConfigurationError("Only one token per line is allowed in '" + stringify(filename) + "'");

        try
        {
            _imp->masks.push_back(std::make_pair(std::shared_ptr<PackageDepSpec>(std::make_shared<PackageDepSpec>(parse_user_package_dep_spec(
                                    spec, _imp->env,
                                    { updso_allow_wildcards, updso_no_disambiguation, updso_throw_if_set }))), reasons));
        }
        catch (const GotASetNotAPackageDepSpec &)
        {
            _imp->sets.push_back(std::make_pair(SetName(spec), std::make_pair(make_null_shared_ptr(), reasons)));
        }
    }
}

bool
PackageMaskConf::query(const std::shared_ptr<const PackageID> & e, const std::string & r) const
{
    using namespace std::placeholders;

    for (auto i(_imp->masks.begin()), i_end(_imp->masks.end()) ;
            i != i_end ; ++i)
        if (match_package(*_imp->env, *i->first, e, make_null_shared_ptr(), MatchPackageOptions()))
        {
            if (r.empty())
            {
                if (i->second.empty())
                    return true;
            }
            else
            {
                if (i->second.empty() || (i->second.end() != i->second.find(r)))
                    return true;
            }
        }

    {
        std::unique_lock<std::mutex> lock(_imp->set_mutex);

        for (Sets::iterator it(_imp->sets.begin()),
                 it_end(_imp->sets.end()); it_end != it; ++it)
        {
            if (! it->second.first)
            {
                it->second.first = _imp->env->set(it->first);
                if (! it->second.first)
                {
                    Log::get_instance()->message("paludis_environment.package_mask.unknown_set", ll_warning, lc_no_context) << "Set name '"
                        << it->first << "' does not exist";
                    it->second.first = std::make_shared<SetSpecTree>(std::make_shared<AllDepSpec>());
                }
            }

            if (match_package_in_set(*_imp->env, *it->second.first, e, { }))
            {
                if (r.empty())
                {
                    if (it->second.second.empty())
                        return true;
                }
                else
                {
                    if (it->second.second.empty() || (it->second.second.end() != it->second.second.find(r)))
                        return true;
                }
            }
        }
    }

    return false;
}