xref: /glogg/src/main.cpp (revision da4beab33c864bf00ceca57b515914faf2f24139)
1 /*
2  * Copyright (C) 2009, 2010, 2011, 2013, 2014 Nicolas Bonnefon and other contributors
3  *
4  * This file is part of glogg.
5  *
6  * glogg is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * glogg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with glogg.  If not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #include <QApplication>
21 
22 #include <memory>
23 
24 #include <boost/program_options.hpp>
25 namespace po = boost::program_options;
26 
27 #include <iostream>
28 #include <iomanip>
29 using namespace std;
30 
31 #include "persistentinfo.h"
32 #include "sessioninfo.h"
33 #include "configuration.h"
34 #include "filterset.h"
35 #include "recentfiles.h"
36 #include "session.h"
37 #include "mainwindow.h"
38 #include "savedsearches.h"
39 #include "loadingstatus.h"
40 #include "dbusexternalcom.h"
41 #include "log.h"
42 
43 static void print_version();
44 
45 int main(int argc, char *argv[])
46 {
47     QApplication app(argc, argv);
48 
49     string filename = "";
50 
51     // Configuration
52     bool new_session = false;
53     bool multi_instance = false;
54 
55     TLogLevel logLevel = logWARNING;
56 
57     try {
58         po::options_description desc("Usage: glogg [options] [file]");
59         desc.add_options()
60             ("help,h", "print out program usage (this message)")
61             ("version,v", "print glogg's version information")
62             ("multi,m", "allow multiple instance of glogg to run simultaneously (use together with -s)")
63             ("new-session,s", "do not load the previous session")
64             ("debug,d", "output more debug (include multiple times for more verbosity e.g. -dddd")
65             ;
66         po::options_description desc_hidden("Hidden options");
67         // For -dd, -ddd...
68         for ( string s = "dd"; s.length() <= 10; s.append("d") )
69             desc_hidden.add_options()(s.c_str(), "debug");
70 
71         desc_hidden.add_options()
72             ("input-file", po::value<string>(), "input file")
73             ;
74 
75         po::options_description all_options("all options");
76         all_options.add(desc).add(desc_hidden);
77 
78         po::positional_options_description positional;
79         positional.add("input-file", 1);
80 
81         int command_line_style = (((po::command_line_style::unix_style ^
82                 po::command_line_style::allow_guessing) |
83                 po::command_line_style::allow_long_disguise) ^
84                 po::command_line_style::allow_sticky);
85 
86         po::variables_map vm;
87         po::store(po::command_line_parser(argc, argv).
88                 options(all_options).
89                 positional(positional).
90                 style(command_line_style).run(),
91                 vm);
92         po::notify(vm);
93 
94         if ( vm.count("help") ) {
95             desc.print(cout);
96             return 0;
97         }
98 
99         if ( vm.count("version") ) {
100             print_version();
101             return 0;
102         }
103 
104         if ( vm.count( "debug" ) )
105             logLevel = logINFO;
106 
107         if ( vm.count( "multi" ) )
108             multi_instance = true;
109 
110         if ( vm.count( "new-session" ) )
111             new_session = true;
112 
113         for ( string s = "dd"; s.length() <= 10; s.append("d") )
114             if ( vm.count( s ) )
115                 logLevel = (TLogLevel) (logWARNING + s.length());
116 
117         if ( vm.count("input-file") )
118             filename = vm["input-file"].as<string>();
119     }
120     catch(exception& e) {
121         cerr << "Option processing error: " << e.what() << endl;
122         return 1;
123     }
124     catch(...) {
125         cerr << "Exception of unknown type!\n";
126     }
127 
128 #if 0
129     FILE* file = fopen("glogg.log", "w");
130     Output2FILE::Stream() = file;
131 #endif
132 
133     FILELog::setReportingLevel( logLevel );
134 
135     // External communicator
136     shared_ptr<ExternalCommunicator> externalCommunicator = nullptr;
137     shared_ptr<ExternalInstance> externalInstance = nullptr;
138 
139     try {
140         externalCommunicator = make_shared<DBusExternalCommunicator>();
141         externalInstance = shared_ptr<ExternalInstance>(
142                 externalCommunicator->otherInstance() );
143     }
144     catch(CantCreateExternalErr& e) {
145         LOG(logWARNING) << "Cannot initialise external communication.";
146     }
147 
148     LOG(logDEBUG) << "externalInstance = " << externalInstance;
149     if ( ( ! multi_instance ) && externalInstance ) {
150         uint32_t version = externalInstance->getVersion();
151         LOG(logINFO) << "Found another glogg (version = "
152             << std::setbase(16) << version << ")";
153 
154         externalInstance->loadFile( QString::fromStdString( filename ) );
155 
156         return 0;
157     }
158     else {
159         // FIXME: there is a race condition here. One glogg could start
160         // between the declaration of externalInstance and here,
161         // is it a problem?
162         if ( externalCommunicator )
163             externalCommunicator->startListening();
164     }
165 
166     // Register types for Qt
167     qRegisterMetaType<LoadingStatus>("LoadingStatus");
168 
169     // Register the configuration items
170     GetPersistentInfo().migrateAndInit();
171     GetPersistentInfo().registerPersistable(
172             std::make_shared<SessionInfo>(), QString( "session" ) );
173     GetPersistentInfo().registerPersistable(
174             std::make_shared<Configuration>(), QString( "settings" ) );
175     GetPersistentInfo().registerPersistable(
176             std::make_shared<FilterSet>(), QString( "filterSet" ) );
177     GetPersistentInfo().registerPersistable(
178             std::make_shared<SavedSearches>(), QString( "savedSearches" ) );
179     GetPersistentInfo().registerPersistable(
180             std::make_shared<RecentFiles>(), QString( "recentFiles" ) );
181 
182     // FIXME: should be replaced by a two staged init of MainWindow
183     GetPersistentInfo().retrieve( QString( "settings" ) );
184 
185     std::unique_ptr<Session> session( new Session() );
186     MainWindow mw( std::move( session ), externalCommunicator );
187 
188     LOG(logDEBUG) << "MainWindow created.";
189     mw.show();
190     if ( ! new_session )
191         mw.reloadSession();
192     mw.loadInitialFile( QString::fromStdString( filename ) );
193     return app.exec();
194 }
195 
196 static void print_version()
197 {
198     cout << "glogg " GLOGG_VERSION "\n";
199 #ifdef GLOGG_COMMIT
200     cout << "Built " GLOGG_DATE " from " GLOGG_COMMIT "\n";
201 #endif
202     cout << "Copyright (C) 2009, 2010, 2011, 2012, 2013 Nicolas Bonnefon and other contributors\n";
203     cout << "This is free software.  You may redistribute copies of it under the terms of\n";
204     cout << "the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.\n";
205     cout << "There is NO WARRANTY, to the extent permitted by law.\n";
206 }
207