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/***************************************************************************
**
** 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)
**
**
** Non-Open Source Usage
**
** 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
** agreement between you and Nokia.
**
** GNU General Public License Usage
**
** 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
** rights. These rights are described in the Nokia Qt GPL Exception
** version 1.2, included in the file GPL_EXCEPTION.txt in this package.
**
***************************************************************************/
#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
enum { OptionIndent = 4, DescriptionIndent = 24 };
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";
typedef QList<ExtensionSystem::PluginSpec *> PluginSpecSet;
// 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("&"));
t.replace(QLatin1Char('<'), QLatin1String("<"));
t.replace(QLatin1Char('>'), QLatin1String(">"));
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();
QMap<QString, QString> foundAppOptions;
if (arguments.size() > 1) {
QMap<QString, bool> appOptions;
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();
}
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