aboutsummaryrefslogtreecommitdiff
path: root/src/clients/cave/cmd_generate_metadata.cc
blob: 29be83c6f4596435c54f5299ef130d45e4835641 (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
/* vim: set sw=4 sts=4 et foldmethod=syntax : */

/*
 * Copyright (c) 2011 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 "cmd_generate_metadata.hh"
#include "format_string.hh"
#include <paludis/args/args.hh>
#include <paludis/args/do_help.hh>
#include <paludis/name.hh>
#include <paludis/environment.hh>
#include <paludis/package_database.hh>
#include <paludis/repository.hh>
#include <paludis/util/set.hh>
#include <paludis/util/wrapped_forward_iterator.hh>
#include <paludis/util/indirect_iterator-impl.hh>
#include <paludis/util/simple_visitor_cast.hh>
#include <paludis/util/make_null_shared_ptr.hh>
#include <paludis/util/accept_visitor.hh>
#include <paludis/generator.hh>
#include <paludis/filtered_generator.hh>
#include <paludis/filter.hh>
#include <paludis/filter_handler.hh>
#include <paludis/selection.hh>
#include <paludis/user_dep_spec.hh>
#include <paludis/package_id.hh>
#include <paludis/mask.hh>
#include <paludis/metadata_key.hh>
#include <cstdlib>
#include <iostream>
#include <algorithm>

#include "command_command_line.hh"

using namespace paludis;
using namespace cave;
using std::cout;
using std::endl;

namespace
{
    struct GenerateMetadataCommandLine :
        CaveCommandCommandLine
    {
        virtual std::string app_name() const
        {
            return "cave generate-metadata";
        }

        virtual std::string app_synopsis() const
        {
            return "Pregenerate metadata for a set of IDs.";
        }

        virtual std::string app_description() const
        {
            return "Pregenerates metadata for a set of IDs.";
        }

        args::ArgsGroup g_filters;
        args::StringSetArg a_matching;

        GenerateMetadataCommandLine() :
            g_filters(main_options_section(), "Filters", "Filter the output. Each filter may be specified more than once."),
            a_matching(&g_filters, "matching", 'm', "Consider only IDs matching this spec. Note that certain specs "
                    "may force metadata generation anyway, e.g. to see whether a slot matches.",
                    args::StringSetArg::StringSetArgOptions())
        {
            add_usage_line("[ --matching spec ]");
        }
    };

    struct MetadataVisitor
    {
        void visit(const MetadataSectionKey & k) const
        {
            std::for_each(indirect_iterator(k.begin_metadata()), indirect_iterator(k.end_metadata()), accept_visitor(*this));
        }

        template <typename T_>
        void visit(const T_ & k) const
        {
            auto PALUDIS_ATTRIBUTE((unused)) v(k.value());
        }
    };
}

int
GenerateMetadataCommand::run(
        const std::shared_ptr<Environment> & env,
        const std::shared_ptr<const Sequence<std::string > > & args
        )
{
    GenerateMetadataCommandLine cmdline;
    cmdline.run(args, "CAVE", "CAVE_GENERATE_METADATA_OPTIONS", "CAVE_GENERATE_METADATA_CMDLINE");

    if (cmdline.a_help.specified())
    {
        cout << cmdline;
        return EXIT_SUCCESS;
    }

    if (cmdline.begin_parameters() != cmdline.end_parameters())
        throw args::DoHelp("generate-metadata takes no parameters");

    Generator g((generator::All()));
    if (cmdline.a_matching.specified())
    {
        for (args::StringSetArg::ConstIterator m(cmdline.a_matching.begin_args()),
                m_end(cmdline.a_matching.end_args()) ;
                m != m_end ; ++m)
        {
            PackageDepSpec s(parse_user_package_dep_spec(*m, env.get(), { updso_allow_wildcards }));
            g = g & generator::Matches(s, make_null_shared_ptr(), { });
        }
    }

    const std::shared_ptr<const PackageIDSequence> ids((*env)[selection::AllVersionsSorted(g)]);
    bool fail(false);
    MetadataVisitor v;
    for (PackageIDSequence::ConstIterator i(ids->begin()), i_end(ids->end()) ;
            i != i_end ; ++i)
    {
        for (PackageID::MetadataConstIterator m((*i)->begin_metadata()), m_end((*i)->end_metadata()); m_end != m; ++m)
            try
            {
                (*m)->accept(v);
            }
            catch (const InternalError &)
            {
                throw;
            }
            catch (const Exception & e)
            {
                std::cerr << "When processing '" << **i << "' got exception '" << e.message() << "' (" << e.what() << ")" << std::endl;
                fail = true;
                break;
            }
    }

    return fail ? EXIT_FAILURE : EXIT_SUCCESS;
}

std::shared_ptr<args::ArgsHandler>
GenerateMetadataCommand::make_doc_cmdline()
{
    return std::make_shared<GenerateMetadataCommandLine>();
}