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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing
**
** This file is part of Qbs.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms and
** conditions see http://www.qt.io/terms-conditions. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "commandlineparser.h"
#include <logging/translator.h>
#include <tools/error.h>
#include <QFileInfo>
using qbs::Internal::Tr;
static QString helpOptionShort() { return QLatin1String("-h"); }
static QString helpOptionLong() { return QLatin1String("--help"); }
static QString detectOption() { return QLatin1String("--detect"); }
static QString typeOption() { return QLatin1String("--type"); }
static QString settingsDirOption() { return QLatin1String("--settings-dir"); }
void CommandLineParser::parse(const QStringList &commandLine)
{
m_commandLine = commandLine;
Q_ASSERT(!m_commandLine.isEmpty());
m_command = QFileInfo(m_commandLine.takeFirst()).fileName();
m_helpRequested = false;
m_autoDetectionMode = false;
m_compilerPath.clear();
m_toolchainType.clear();
m_profileName.clear();
m_settingsDir.clear();
if (m_commandLine.isEmpty())
throwError(Tr::tr("No command-line arguments provided."));
while (!m_commandLine.isEmpty()) {
const QString arg = m_commandLine.first();
if (!arg.startsWith(QLatin1String("--")))
break;
m_commandLine.removeFirst();
if (arg == helpOptionShort() || arg == helpOptionLong())
m_helpRequested = true;
else if (arg == detectOption())
m_autoDetectionMode = true;
else if (arg == typeOption())
assignOptionArgument(typeOption(), m_toolchainType);
else if (arg == settingsDirOption())
assignOptionArgument(settingsDirOption(), m_settingsDir);
}
if (m_helpRequested || m_autoDetectionMode) {
if (!m_commandLine.isEmpty())
complainAboutExtraArguments();
return;
}
switch (m_commandLine.count()) {
case 0:
case 1:
throwError(Tr::tr("Not enough command-line arguments provided."));
case 2:
m_compilerPath = m_commandLine.at(0);
m_profileName = m_commandLine.at(1);
break;
default:
complainAboutExtraArguments();
}
}
void CommandLineParser::throwError(const QString &message)
{
qbs::ErrorInfo error(Tr::tr("Syntax error: %1").arg(message));
error.append(usageString());
throw error;
}
QString CommandLineParser::usageString() const
{
QString s = Tr::tr("This tool creates qbs profiles from toolchains.\n");
s += Tr::tr("Usage:\n");
s += Tr::tr(" %1 [%2 <settings directory>] %3\n")
.arg(m_command, settingsDirOption(), detectOption());
s += Tr::tr(" %1 [%3 <settings directory>] [%2 <toolchain type>] "
"<compiler path> <profile name>\n")
.arg(m_command, typeOption(), settingsDirOption());
s += Tr::tr(" %1 %2|%3\n").arg(m_command, helpOptionShort(), helpOptionLong());
s += Tr::tr("The first form tries to auto-detect all known toolchains, looking them up "
"via the PATH environment variable.\n");
s += Tr::tr("The second form creates one profile for one toolchain. It will attempt "
"to find out the toolchain type automatically.\nIn case the compiler has "
"an unusual file name, you may need to provide the '--type' option.");
return s;
}
void CommandLineParser::assignOptionArgument(const QString &option, QString &argument)
{
if (m_commandLine.isEmpty())
throwError(Tr::tr("Option '%1' needs an argument.").arg(option));
argument = m_commandLine.takeFirst();
if (argument.isEmpty())
throwError(Tr::tr("Argument for option '%1' must not be empty.").arg(option));
}
void CommandLineParser::complainAboutExtraArguments()
{
throwError(Tr::tr("Extraneous command-line arguments '%1'.")
.arg(m_commandLine.join(QLatin1Char(' '))));
}
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