forked from qt-creator/qt-creator
286 lines
9.7 KiB
C++
286 lines
9.7 KiB
C++
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/***************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Qt Software Information (qt-info@nokia.com)
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**
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**
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** Non-Open Source Usage
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**
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** Licensees may use this file in accordance with the Qt Beta Version
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** License Agreement, Agreement version 2.2 provided with the Software or,
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** alternatively, in accordance with the terms contained in a written
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** agreement between you and Nokia.
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**
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** GNU General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the packaging
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** of this file. Please review the following information to ensure GNU
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** General Public Licensing requirements will be met:
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**
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** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt GPL Exception version
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** 1.2, included in the file GPL_EXCEPTION.txt in this package.
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**
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***************************************************************************/
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#include "qtsingleapplication.h"
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#include <extensionsystem/pluginmanager.h>
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#include <extensionsystem/pluginspec.h>
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#include <extensionsystem/iplugin.h>
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#include <QtCore/QDir>
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#include <QtCore/QTextStream>
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#include <QtCore/QFileInfo>
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#include <QtCore/QDebug>
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#include <QtCore/QTimer>
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#include <QtGui/QMessageBox>
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#include <QtGui/QApplication>
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#include <QtGui/QMainWindow>
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#ifdef Q_OS_DARWIN
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# include <sys/resource.h>
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#endif
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enum { OptionIndent =4, DescriptionIndent = 24 };
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static const char *appNameC = "Qt Creator";
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static const char *corePluginNameC = "Core";
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static const char *fixedOptionsC =
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" [OPTION]... [FILE]...\n"
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"Options:\n"
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" -help Display this help\n"
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" -version Display program version\n"
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" -client Attempt to connect to already running instance\n";
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static const char *HELP_OPTION1 = "-h";
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static const char *HELP_OPTION2 = "-help";
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static const char *HELP_OPTION3 = "/h";
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static const char *HELP_OPTION4 = "--help";
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static const char *VERSION_OPTION = "-version";
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static const char *CLIENT_OPTION = "-client";
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typedef QSet<ExtensionSystem::PluginSpec *> PluginSpecSet;
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// Helpers for displaying messages. Note that there is no console on Windows.
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#ifdef Q_WS_WIN
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// Format as <pre> HTML
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static inline void toHtml(QString &t)
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{
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t.replace(QLatin1Char('&'), QLatin1String("&"));
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t.replace(QLatin1Char('<'), QLatin1String("<"));
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t.replace(QLatin1Char('>'), QLatin1String(">"));
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t.insert(0, QLatin1String("<html><pre>"));
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t.append(QLatin1String("</pre></html>"));
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}
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static void displayHelpText(QString t) // No console on Windows.
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{
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toHtml(t);
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QMessageBox::information(0, QLatin1String(appNameC), t);
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}
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static void displayError(const QString &t) // No console on Windows.
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{
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QMessageBox::critical(0, QLatin1String(appNameC), t);
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}
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#else
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static void displayHelpText(const QString &t)
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{
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qWarning(t.toUtf8().constData());
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}
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static void displayError(const QString &t)
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{
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qCritical(t.toUtf8().constData());
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}
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#endif
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static void printVersion(const ExtensionSystem::PluginSpec *coreplugin,
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const ExtensionSystem::PluginManager &pm)
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{
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QString version;
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QTextStream str(&version);
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str << '\n' << appNameC << ' ' << coreplugin->version()<< " based on Qt " << qVersion() << "\n\n";
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pm.formatPluginVersions(str);
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str << '\n' << coreplugin->copyright() << '\n';
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displayHelpText(version);
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}
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static void printHelp(const QString &a0, const ExtensionSystem::PluginManager &pm)
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{
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QString help;
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QTextStream str(&help);
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str << "Usage: " << a0 << fixedOptionsC;
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ExtensionSystem::PluginManager::formatOptions(str, OptionIndent, DescriptionIndent);
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pm.formatPluginOptions(str, OptionIndent, DescriptionIndent);
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displayHelpText(help);
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}
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static inline QString msgCoreLoadFailure(const QString &why)
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{
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return QCoreApplication::translate("Application", "Failed to load core: %1").arg(why);
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}
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static inline QString msgSendArgumentFailed()
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{
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return QCoreApplication::translate("Application", "Unable to send command line arguments to the already running instance. It appears to be not responding.");
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}
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// Prepare a remote argument: If it is a relative file, add the current directory
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// since the the central instance might be running in a different directory.
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static inline QString prepareRemoteArgument(const QString &a)
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{
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QFileInfo fi(a);
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if (!fi.exists())
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return a;
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if (fi.isRelative())
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return fi.absoluteFilePath();
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return a;
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}
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// Send the arguments to an already running instance of Qt Creator
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static bool sendArguments(SharedTools::QtSingleApplication &app, const QStringList &arguments)
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{
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if (!arguments.empty()) {
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// Send off arguments
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const QStringList::const_iterator acend = arguments.constEnd();
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for (QStringList::const_iterator it = arguments.constBegin(); it != acend; ++it) {
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if (!app.sendMessage(prepareRemoteArgument(*it))) {
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displayError(msgSendArgumentFailed());
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return false;
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}
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}
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}
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// Special empty argument means: Show and raise (the slot just needs to be triggered)
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if (!app.sendMessage(QString())) {
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displayError(msgSendArgumentFailed());
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return false;
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}
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return true;
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}
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static inline QStringList getPluginPaths()
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{
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QStringList rc;
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// Figure out root: Up one from 'bin'
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QDir rootDir = QApplication::applicationDirPath();
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rootDir.cdUp();
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const QString rootDirPath = rootDir.canonicalPath();
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// 1) "lib" dir
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QString pluginPath = rootDirPath;
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pluginPath += QDir::separator();
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pluginPath += QLatin1String("lib");
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rc.push_back(pluginPath);
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// 2) "PlugIns"
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pluginPath = rootDirPath;
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pluginPath += QDir::separator();
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pluginPath += QLatin1String("PlugIns");
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rc.push_back(pluginPath);
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return rc;
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}
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int main(int argc, char **argv)
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{
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#ifdef Q_OS_DARWIN
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// increase the number of file that can be opened in Qt Creator.
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struct rlimit rl;
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getrlimit(RLIMIT_NOFILE, &rl);
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rl.rlim_cur = rl.rlim_max;
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setrlimit(RLIMIT_NOFILE, &rl);
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#endif
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SharedTools::QtSingleApplication app((QLatin1String(appNameC)), argc, argv);
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// Load
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ExtensionSystem::PluginManager pluginManager;
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pluginManager.setFileExtension(QLatin1String("pluginspec"));
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const QStringList pluginPaths = getPluginPaths();
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pluginManager.setPluginPaths(pluginPaths);
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const QStringList arguments = app.arguments();
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QMap<QString,QString> foundAppOptions;
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if (arguments.size() > 1) {
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QMap<QString,bool> appOptions;
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appOptions.insert(QLatin1String(HELP_OPTION1), false);
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appOptions.insert(QLatin1String(HELP_OPTION2), false);
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appOptions.insert(QLatin1String(HELP_OPTION3), false);
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appOptions.insert(QLatin1String(HELP_OPTION4), false);
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appOptions.insert(QLatin1String(VERSION_OPTION), false);
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appOptions.insert(QLatin1String(CLIENT_OPTION), false);
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QString errorMessage;
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if (!pluginManager.parseOptions(arguments,
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appOptions,
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&foundAppOptions,
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&errorMessage)) {
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displayError(errorMessage);
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printHelp(QFileInfo(app.applicationFilePath()).baseName(), pluginManager);
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return -1;
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}
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}
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const PluginSpecSet plugins = pluginManager.plugins();
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ExtensionSystem::PluginSpec *coreplugin = 0;
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foreach (ExtensionSystem::PluginSpec *spec, plugins) {
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if (spec->name() == QLatin1String(corePluginNameC)) {
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coreplugin = spec;
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break;
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}
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}
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if (!coreplugin) {
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const QString reason = QCoreApplication::translate("Application", "Couldn't find 'Core.pluginspec' in %1").arg(pluginPaths.join(QLatin1String(",")));
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displayError(msgCoreLoadFailure(reason));
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return 1;
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}
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if (coreplugin->hasError()) {
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displayError(msgCoreLoadFailure(coreplugin->errorString()));
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return 1;
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}
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if (foundAppOptions.contains(QLatin1String(VERSION_OPTION))) {
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printVersion(coreplugin, pluginManager);
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return 0;
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}
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if (foundAppOptions.contains(QLatin1String(HELP_OPTION1))
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|| foundAppOptions.contains(QLatin1String(HELP_OPTION2))
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|| foundAppOptions.contains(QLatin1String(HELP_OPTION3))
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printHelp(QFileInfo(app.applicationFilePath()).baseName(), pluginManager);
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return 0;
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}
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const bool isFirstInstance = !app.isRunning();
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if (!isFirstInstance && foundAppOptions.contains(QLatin1String(CLIENT_OPTION)))
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return sendArguments(app, pluginManager.arguments()) ? 0 : -1;
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pluginManager.loadPlugins();
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if (coreplugin->hasError()) {
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displayError(msgCoreLoadFailure(coreplugin->errorString()));
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return 1;
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}
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if (isFirstInstance) {
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// Set up lock and remote arguments for the first instance only.
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// Silently fallback to unconnected instances for any subsequent
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// instances.
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app.initialize();
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QObject::connect(&app, SIGNAL(messageReceived(QString)), coreplugin->plugin(), SLOT(remoteArgument(QString)));
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}
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QObject::connect(&app, SIGNAL(fileOpenRequest(QString)), coreplugin->plugin(), SLOT(remoteArgument(QString)));
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// Do this after the event loop has started
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QTimer::singleShot(100, &pluginManager, SLOT(startTests()));
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return app.exec();
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}
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