aboutsummaryrefslogtreecommitdiff
path: root/src/paludis.cc
blob: 8df9fe06d23d556c7bdd1c29d12f22a09614464d (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
174
175
176
177
178
179
180
181
182
183
184
185
186
/* vim: set sw=4 sts=4 et foldmethod=syntax : */

/*
 * Copyright (c) 2005, 2006 Ciaran McCreesh <ciaranm@gentoo.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/paludis.hh>
#include "src/query.hh"
#include "src/install.hh"
#include "src/list.hh"
#include "src/command_line.hh"

#include <iostream>
#include <cstdlib>

/** \file
 * Main paludis program.
 */

namespace p = paludis;

using std::cout;
using std::cerr;
using std::endl;

struct DoHelp
{
    const std::string message;

    DoHelp(const std::string & m = "") :
        message(m)
    {
    }
};

struct DoVersion
{
};

int
main(int argc, char *argv[])
{
    p::Context context("In main program:");

    try
    {
        context.change_context("When parsing command line arguments:");

        CommandLine::get_instance()->run(argc, argv);

        if (CommandLine::get_instance()->a_help.specified())
            throw DoHelp();

        if (1 != (CommandLine::get_instance()->a_query.specified() +
                    CommandLine::get_instance()->a_version.specified() +
                    CommandLine::get_instance()->a_install.specified() +
                    CommandLine::get_instance()->a_list_repositories.specified() +
                    CommandLine::get_instance()->a_list_categories.specified()))
            throw DoHelp("you should specify exactly one action");

        if (CommandLine::get_instance()->a_version.specified())
            throw DoVersion();

        if (CommandLine::get_instance()->a_query.specified())
        {
            if (CommandLine::get_instance()->empty())
                throw DoHelp("query action requires at least one parameter");

            return do_query();
        }

        if (CommandLine::get_instance()->a_install.specified())
        {
            if (CommandLine::get_instance()->empty())
                throw DoHelp("install action requires at least one parameter");

            return do_install();
        }

        if (CommandLine::get_instance()->a_list_repositories.specified())
        {
            if (! CommandLine::get_instance()->empty())
                throw DoHelp("list-repositories action takes no parameters");

            return do_list_repositories();
        }

        if (CommandLine::get_instance()->a_list_categories.specified())
        {
            if (! CommandLine::get_instance()->empty())
                throw DoHelp("list-categories action takes no parameters");

            return do_list_categories();
        }

        throw p::InternalError(__PRETTY_FUNCTION__, "no action?");
    }
    catch (const DoVersion &)
    {
        cout << PALUDIS_PACKAGE << " " << PALUDIS_VERSION_MAJOR << "."
            << PALUDIS_VERSION_MINOR << "." << PALUDIS_VERSION_MICRO;
        if (! std::string(PALUDIS_SUBVERSION_REVISION).empty())
            cout << " svn " << PALUDIS_SUBVERSION_REVISION;
        cout << endl << endl;
        cout << "Built by " << PALUDIS_BUILD_USER << "@" << PALUDIS_BUILD_HOST
            << " on " << PALUDIS_BUILD_DATE << endl;
        cout << "CXX:         " << PALUDIS_BUILD_CXX
#ifdef __VERSION__
            << " " << __VERSION__
#else
#  ifdef __ICC
            << " " << __ICC
#  endif
#endif
            << endl;
        cout << "CXXFLAGS:    " << PALUDIS_BUILD_CXXFLAGS << endl;
        cout << "LDFLAGS:     " << PALUDIS_BUILD_LDFLAGS << endl;
        cout << "SYSCONFDIR:  " << SYSCONFDIR << endl;
        cout << "libebt:      " << LIBEBT_VERSION_MAJOR << "." << LIBEBT_VERSION_MINOR
            << "." << LIBEBT_VERSION_MICRO << endl;
        cout << endl;
        cout << "Paludis comes with ABSOLUTELY NO WARRANTY. Paludis is free software, and you" << endl;
        cout << "are welcome to redistribute it under the terms of the GNU General Public" << endl;
        cout << "License, version 2." << endl;

        return EXIT_SUCCESS;
    }
    catch (const paludis::args::ArgsError & e)
    {
        cerr << "Usage error: " << e.message() << endl;
        cerr << "Try " << argv[0] << " --help" << endl;
        return EXIT_FAILURE;
    }
    catch (const DoHelp & h)
    {
        if (h.message.empty())
        {
            cout << "Usage: " << argv[0] << " [options]" << endl;
            cout << endl;
            cout << *CommandLine::get_instance();
            return EXIT_SUCCESS;
        }
        else
        {
            cerr << "Usage error: " << h.message << endl;
            cerr << "Try " << argv[0] << " --help" << endl;
            return EXIT_FAILURE;
        }
    }
    catch (const p::Exception & e)
    {
        cout << endl;
        cerr << "Unhandled exception:" << endl
            << "  * " << e.backtrace("\n  * ")
            << e.message() << " (" << e.what() << ")" << endl;
        return EXIT_FAILURE;
    }
    catch (const std::exception & e)
    {
        cout << endl;
        cerr << "Unhandled exception:" << endl
            << "  * " << e.what() << endl;
        return EXIT_FAILURE;
    }
    catch (...)
    {
        cout << endl;
        cerr << "Unhandled exception:" << endl
            << "  * Unknown exception type. Ouch..." << endl;
        return EXIT_FAILURE;
    }
}