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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qbs.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "msvcinfo.h"
#include <tools/error.h>
#include <tools/profile.h>
#include <tools/stringconstants.h>
#include <QtCore/qbytearray.h>
#include <QtCore/qdir.h>
#include <QtCore/qprocess.h>
#include <QtCore/qstringlist.h>
#include <QtCore/qtemporaryfile.h>
#ifdef Q_OS_WIN
#include <QtCore/qt_windows.h>
#endif
#include <algorithm>
#include <mutex>
using namespace qbs;
using namespace qbs::Internal;
static std::recursive_mutex envMutex;
static QString mkStr(const char *s) { return QString::fromLocal8Bit(s); }
static QString mkStr(const QByteArray &ba) { return mkStr(ba.constData()); }
class TemporaryEnvChanger
{
public:
TemporaryEnvChanger(const QProcessEnvironment &envChanges) : m_locker(envMutex)
{
QProcessEnvironment currentEnv = QProcessEnvironment::systemEnvironment();
for (const QString &key : envChanges.keys()) {
m_changesToRestore.insert(key, currentEnv.value(key));
qputenv(qPrintable(key), qPrintable(envChanges.value(key)));
}
}
~TemporaryEnvChanger()
{
for (const QString &key : m_changesToRestore.keys())
qputenv(qPrintable(key), qPrintable(m_changesToRestore.value(key)));
}
private:
QProcessEnvironment m_changesToRestore;
std::lock_guard<std::recursive_mutex> m_locker;
};
static QByteArray runProcess(const QString &exeFilePath, const QStringList &args,
const QProcessEnvironment &env = QProcessEnvironment(),
bool allowFailure = false,
const QByteArray &pipeData = QByteArray())
{
TemporaryEnvChanger envChanger(env);
QProcess process;
process.start(exeFilePath, args);
if (!process.waitForStarted())
throw ErrorInfo(mkStr("Could not start %1 (%2)").arg(exeFilePath, process.errorString()));
if (!pipeData.isEmpty()) {
process.write(pipeData);
process.closeWriteChannel();
}
if (!process.waitForFinished(-1) || process.exitStatus() != QProcess::NormalExit)
throw ErrorInfo(mkStr("Could not run %1 (%2)").arg(exeFilePath, process.errorString()));
if (process.exitCode() != 0 && !allowFailure) {
ErrorInfo e(mkStr("Process '%1' failed with exit code %2.")
.arg(exeFilePath).arg(process.exitCode()));
const QByteArray stdErr = process.readAllStandardError();
if (!stdErr.isEmpty())
e.append(mkStr("stderr was: %1").arg(mkStr(stdErr)));
const QByteArray stdOut = process.readAllStandardOutput();
if (!stdOut.isEmpty())
e.append(mkStr("stdout was: %1").arg(mkStr(stdOut)));
throw e;
}
return process.readAllStandardOutput().trimmed();
}
class DummyFile {
public:
DummyFile(const QString &fp) : filePath(fp) { }
~DummyFile() { QFile::remove(filePath); }
const QString filePath;
};
#ifdef Q_OS_WIN
static QStringList parseCommandLine(const QString &commandLine)
{
QStringList list;
auto buf = new wchar_t[commandLine.size() + 1];
buf[commandLine.toWCharArray(buf)] = 0;
int argCount = 0;
LPWSTR *args = CommandLineToArgvW(buf, &argCount);
if (!args)
throw ErrorInfo(mkStr("Could not parse command line arguments: ") + commandLine);
for (int i = 0; i < argCount; ++i)
list.push_back(QString::fromWCharArray(args[i]));
delete[] buf;
return list;
}
#endif
static QVariantMap getMsvcDefines(const QString &compilerFilePath,
const QProcessEnvironment &compilerEnv,
MSVC::CompilerLanguage language)
{
#ifdef Q_OS_WIN
QString backendSwitch, languageSwitch;
switch (language) {
case MSVC::CLanguage:
backendSwitch = QStringLiteral("/B1");
languageSwitch = QStringLiteral("/TC");
break;
case MSVC::CPlusPlusLanguage:
backendSwitch = QStringLiteral("/Bx");
languageSwitch = QStringLiteral("/TP");
break;
}
const QByteArray commands("set MSC_CMD_FLAGS\n");
QStringList out = QString::fromLocal8Bit(runProcess(compilerFilePath, QStringList()
<< QStringLiteral("/nologo")
<< backendSwitch
<< QString::fromWCharArray(_wgetenv(L"COMSPEC"))
<< QStringLiteral("/c")
<< languageSwitch
<< QStringLiteral("NUL"),
compilerEnv, true, commands)).split(QLatin1Char('\n'));
auto findResult = std::find_if(out.cbegin(), out.cend(), [] (const QString &line) {
return line.startsWith(QLatin1String("MSC_CMD_FLAGS="));
});
if (findResult == out.cend()) {
throw ErrorInfo(QStringLiteral("Unexpected compiler frontend output: ")
+ out.join(QLatin1Char('\n')));
}
QVariantMap map;
const QStringList args = parseCommandLine(findResult->trimmed());
for (const QString &arg : args) {
if (!arg.startsWith(QStringLiteral("-D")))
continue;
int idx = arg.indexOf(QLatin1Char('='), 2);
if (idx > 2)
map.insert(arg.mid(2, idx - 2), arg.mid(idx + 1));
else
map.insert(arg.mid(2), QVariant());
}
return map;
#else
Q_UNUSED(compilerFilePath);
Q_UNUSED(compilerEnv);
Q_UNUSED(language);
return QVariantMap();
#endif
}
void MSVC::init()
{
determineCompilerVersion();
}
QString MSVC::binPathForArchitecture(const QString &arch) const
{
QString archSubDir;
if (arch != StringConstants::x86Arch())
archSubDir = arch;
return QDir::cleanPath(vcInstallPath + QLatin1Char('/') + pathPrefix + QLatin1Char('/')
+ archSubDir);
}
static QString clExeSuffix() { return QStringLiteral("/cl.exe"); }
QString MSVC::clPathForArchitecture(const QString &arch) const
{
return binPathForArchitecture(arch) + clExeSuffix();
}
QVariantMap MSVC::compilerDefines(const QString &compilerFilePath,
MSVC::CompilerLanguage language) const
{
return getMsvcDefines(compilerFilePath, environment, language);
}
void MSVC::determineCompilerVersion()
{
QString cppFilePath;
{
QTemporaryFile cppFile(QDir::tempPath() + QLatin1String("/qbsXXXXXX.cpp"));
cppFile.setAutoRemove(false);
if (!cppFile.open()) {
throw ErrorInfo(mkStr("Could not create temporary file (%1)")
.arg(cppFile.errorString()));
}
cppFilePath = cppFile.fileName();
cppFile.write("_MSC_FULL_VER");
cppFile.close();
}
DummyFile fileDeleter(cppFilePath);
std::lock_guard<std::recursive_mutex> locker(envMutex);
const QByteArray origPath = qgetenv("PATH");
qputenv("PATH", environment.value(StringConstants::pathEnvVar()).toLatin1() + ';' + origPath);
QByteArray versionStr = runProcess(
binPath + clExeSuffix(),
QStringList() << QStringLiteral("/nologo") << QStringLiteral("/EP")
<< QDir::toNativeSeparators(cppFilePath));
qputenv("PATH", origPath);
compilerVersion = Version(versionStr.mid(0, 2).toInt(), versionStr.mid(2, 2).toInt(),
versionStr.mid(4).toInt());
}
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