main.cpp 9.71 KB
Newer Older
con's avatar
con committed
1
2
3
4
5
6
7
8
/***************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact:  Qt Software Information (qt-info@nokia.com)
**
9
10
11
**
** Non-Open Source Usage
**
con's avatar
con committed
12
13
14
** Licensees may use this file in accordance with the Qt Beta Version
** License Agreement, Agreement version 2.2 provided with the Software or,
** alternatively, in accordance with the terms contained in a written
15
16
17
18
** agreement between you and Nokia.
**
** GNU General Public License Usage
**
con's avatar
con committed
19
20
21
22
23
24
25
26
27
28
** Alternatively, this file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the packaging
** of this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
**
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** In addition, as a special exception, Nokia gives you certain additional
29
30
31
32
** rights. These rights are described in the Nokia Qt GPL Exception
** version 1.2, included in the file GPL_EXCEPTION.txt in this package.
**
***************************************************************************/
con's avatar
con committed
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

#include "qtsingleapplication.h"

#include <extensionsystem/pluginmanager.h>
#include <extensionsystem/pluginspec.h>
#include <extensionsystem/iplugin.h>

#include <QtCore/QDir>
#include <QtCore/QTextStream>
#include <QtCore/QFileInfo>
#include <QtCore/QDebug>
#include <QtCore/QTimer>

#include <QtGui/QMessageBox>
#include <QtGui/QApplication>
#include <QtGui/QMainWindow>

#ifdef Q_OS_DARWIN
#  include <sys/resource.h>
#endif

hjk's avatar
hjk committed
54
enum { OptionIndent = 4, DescriptionIndent = 24 };
con's avatar
con committed
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71

static const char *appNameC = "Qt Creator";
static const char *corePluginNameC = "Core";
static const char *fixedOptionsC =
" [OPTION]... [FILE]...\n"
"Options:\n"
"    -help               Display this help\n"
"    -version            Display program version\n"
"    -client             Attempt to connect to already running instance\n";

static const char *HELP_OPTION1 = "-h";
static const char *HELP_OPTION2 = "-help";
static const char *HELP_OPTION3 = "/h";
static const char *HELP_OPTION4 = "--help";
static const char *VERSION_OPTION = "-version";
static const char *CLIENT_OPTION = "-client";

72
typedef QList<ExtensionSystem::PluginSpec *> PluginSpecSet;
con's avatar
con committed
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
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214

// Helpers for displaying messages. Note that there is no console on Windows.
#ifdef Q_WS_WIN
// Format as <pre> HTML
static inline void toHtml(QString &t)
{
    t.replace(QLatin1Char('&'), QLatin1String("&amp;"));
    t.replace(QLatin1Char('<'), QLatin1String("&lt;"));
    t.replace(QLatin1Char('>'), QLatin1String("&gt;"));
    t.insert(0, QLatin1String("<html><pre>"));
    t.append(QLatin1String("</pre></html>"));
}

static void displayHelpText(QString t) // No console on Windows.
{
    toHtml(t);
    QMessageBox::information(0, QLatin1String(appNameC), t);
}

static void displayError(const QString &t) // No console on Windows.
{
    QMessageBox::critical(0, QLatin1String(appNameC), t);
}

#else

static void displayHelpText(const QString &t)
{
    qWarning(t.toUtf8().constData());
}

static void displayError(const QString &t)
{
    qCritical(t.toUtf8().constData());
}

#endif

static void printVersion(const ExtensionSystem::PluginSpec *coreplugin,
                         const ExtensionSystem::PluginManager &pm)
{
    QString version;
    QTextStream str(&version);
    str << '\n' << appNameC << ' ' << coreplugin->version()<< " based on Qt " << qVersion() << "\n\n";
    pm.formatPluginVersions(str);
    str << '\n' << coreplugin->copyright() << '\n';
    displayHelpText(version);
}

static void printHelp(const QString &a0, const ExtensionSystem::PluginManager &pm)
{
    QString help;
    QTextStream str(&help);
    str << "Usage: " << a0  << fixedOptionsC;
    ExtensionSystem::PluginManager::formatOptions(str, OptionIndent, DescriptionIndent);
    pm.formatPluginOptions(str,  OptionIndent, DescriptionIndent);
    displayHelpText(help);
}

static inline QString msgCoreLoadFailure(const QString &why)
{
    return QCoreApplication::translate("Application", "Failed to load core: %1").arg(why);
}

static inline QString msgSendArgumentFailed()
{
    return QCoreApplication::translate("Application", "Unable to send command line arguments to the already running instance. It appears to be not responding.");
}

// Prepare a remote argument: If it is a relative file, add the current directory
// since the the central instance might be running in a different directory.

static inline QString prepareRemoteArgument(const QString &a)
{
    QFileInfo fi(a);
    if (!fi.exists())
        return a;
    if (fi.isRelative())
        return fi.absoluteFilePath();
    return a;
}

// Send the arguments to an already running instance of Qt Creator
static bool sendArguments(SharedTools::QtSingleApplication &app, const QStringList &arguments)
{
    if (!arguments.empty()) {
        // Send off arguments
        const QStringList::const_iterator acend = arguments.constEnd();
        for (QStringList::const_iterator it = arguments.constBegin(); it != acend; ++it) {
            if (!app.sendMessage(prepareRemoteArgument(*it))) {
                displayError(msgSendArgumentFailed());
                return false;
            }
        }
    }
    // Special empty argument means: Show and raise (the slot just needs to be triggered)
    if (!app.sendMessage(QString())) {
        displayError(msgSendArgumentFailed());
        return false;
    }
    return true;
}

static inline QStringList getPluginPaths()
{
    QStringList rc;
    // Figure out root:  Up one from 'bin'
    QDir rootDir = QApplication::applicationDirPath();
    rootDir.cdUp();
    const QString rootDirPath = rootDir.canonicalPath();
    // 1) "lib" dir
    QString pluginPath = rootDirPath;
    pluginPath += QDir::separator();
    pluginPath += QLatin1String("lib");
    rc.push_back(pluginPath);
    // 2) "PlugIns"
    pluginPath = rootDirPath;
    pluginPath += QDir::separator();
    pluginPath += QLatin1String("PlugIns");
    rc.push_back(pluginPath);
    return rc;
}

int main(int argc, char **argv)
{
#ifdef Q_OS_DARWIN
    // increase the number of file that can be opened in Qt Creator.
    struct rlimit rl;
    getrlimit(RLIMIT_NOFILE, &rl);
    rl.rlim_cur = rl.rlim_max;
    setrlimit(RLIMIT_NOFILE, &rl);
#endif

    SharedTools::QtSingleApplication app((QLatin1String(appNameC)), argc, argv);
    // Load
    ExtensionSystem::PluginManager pluginManager;
    pluginManager.setFileExtension(QLatin1String("pluginspec"));

    const QStringList pluginPaths = getPluginPaths();
    pluginManager.setPluginPaths(pluginPaths);

    const QStringList arguments = app.arguments();
hjk's avatar
hjk committed
215
    QMap<QString, QString> foundAppOptions;
con's avatar
con committed
216
    if (arguments.size() > 1) {
hjk's avatar
hjk committed
217
        QMap<QString, bool> appOptions;
con's avatar
con committed
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
        appOptions.insert(QLatin1String(HELP_OPTION1), false);
        appOptions.insert(QLatin1String(HELP_OPTION2), false);
        appOptions.insert(QLatin1String(HELP_OPTION3), false);
        appOptions.insert(QLatin1String(HELP_OPTION4), false);
        appOptions.insert(QLatin1String(VERSION_OPTION), false);
        appOptions.insert(QLatin1String(CLIENT_OPTION), false);
        QString errorMessage;
        if (!pluginManager.parseOptions(arguments,
                                        appOptions,
                                        &foundAppOptions,
                                        &errorMessage)) {
            displayError(errorMessage);
            printHelp(QFileInfo(app.applicationFilePath()).baseName(), pluginManager);
            return -1;
        }
    }

    const PluginSpecSet plugins = pluginManager.plugins();
    ExtensionSystem::PluginSpec *coreplugin = 0;
    foreach (ExtensionSystem::PluginSpec *spec, plugins) {
        if (spec->name() == QLatin1String(corePluginNameC)) {
            coreplugin = spec;
            break;
        }
    }
    if (!coreplugin) {
        const QString reason = QCoreApplication::translate("Application", "Couldn't find 'Core.pluginspec' in %1").arg(pluginPaths.join(QLatin1String(",")));
        displayError(msgCoreLoadFailure(reason));
        return 1;
    }
    if (coreplugin->hasError()) {
        displayError(msgCoreLoadFailure(coreplugin->errorString()));
        return 1;
    }
    if (foundAppOptions.contains(QLatin1String(VERSION_OPTION))) {
        printVersion(coreplugin, pluginManager);
        return 0;
    }
    if (foundAppOptions.contains(QLatin1String(HELP_OPTION1))
            || foundAppOptions.contains(QLatin1String(HELP_OPTION2))
            || foundAppOptions.contains(QLatin1String(HELP_OPTION3))
            || foundAppOptions.contains(QLatin1String(HELP_OPTION4))) {
        printHelp(QFileInfo(app.applicationFilePath()).baseName(), pluginManager);
        return 0;
    }

    const bool isFirstInstance = !app.isRunning();
    if (!isFirstInstance && foundAppOptions.contains(QLatin1String(CLIENT_OPTION)))
        return sendArguments(app, pluginManager.arguments()) ? 0 : -1;

    pluginManager.loadPlugins();
    if (coreplugin->hasError()) {
        displayError(msgCoreLoadFailure(coreplugin->errorString()));
        return 1;
    }
    if (isFirstInstance) {
        // Set up lock and remote arguments for the first instance only.
        // Silently fallback to unconnected instances for any subsequent
        // instances.
        app.initialize();
        QObject::connect(&app, SIGNAL(messageReceived(QString)), coreplugin->plugin(), SLOT(remoteArgument(QString)));
    }
    QObject::connect(&app, SIGNAL(fileOpenRequest(QString)), coreplugin->plugin(), SLOT(remoteArgument(QString)));

    // Do this after the event loop has started
    QTimer::singleShot(100, &pluginManager, SLOT(startTests()));
    return app.exec();
}