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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the qmake application of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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 General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** 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-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qmakevfs.h"
#include "ioutils.h"
using namespace QMakeInternal;
#include <qdir.h>
#include <qfile.h>
#include <qfileinfo.h>
#define fL1S(s) QString::fromLatin1(s)
QT_BEGIN_NAMESPACE
QMakeVfs::QMakeVfs()
#ifndef PROEVALUATOR_FULL
: m_magicMissing(fL1S("missing"))
, m_magicExisting(fL1S("existing"))
#endif
{
}
bool QMakeVfs::writeFile(const QString &fn, QIODevice::OpenMode mode, bool exe,
const QString &contents, QString *errStr)
{
#ifndef PROEVALUATOR_FULL
# ifdef PROEVALUATOR_THREAD_SAFE
QMutexLocker locker(&m_mutex);
# endif
QString *cont = &m_files[fn];
if (mode & QIODevice::Append)
*cont += contents;
else
*cont = contents;
Q_UNUSED(errStr)
Q_UNUSED(exe)
return true;
#else
QFileInfo qfi(fn);
if (!QDir::current().mkpath(qfi.path())) {
*errStr = fL1S("Cannot create parent directory");
return false;
}
QByteArray bytes = contents.toLocal8Bit();
QFile cfile(fn);
if (!(mode & QIODevice::Append) && cfile.open(QIODevice::ReadOnly | QIODevice::Text)) {
if (cfile.readAll() == bytes) {
if (exe) {
cfile.setPermissions(cfile.permissions()
| QFile::ExeUser | QFile::ExeGroup | QFile::ExeOther);
} else {
cfile.setPermissions(cfile.permissions()
& ~(QFile::ExeUser | QFile::ExeGroup | QFile::ExeOther));
}
return true;
}
cfile.close();
}
if (!cfile.open(mode | QIODevice::WriteOnly | QIODevice::Text)) {
*errStr = cfile.errorString();
return false;
}
cfile.write(bytes);
cfile.close();
if (cfile.error() != QFile::NoError) {
*errStr = cfile.errorString();
return false;
}
if (exe)
cfile.setPermissions(cfile.permissions()
| QFile::ExeUser | QFile::ExeGroup | QFile::ExeOther);
return true;
#endif
}
bool QMakeVfs::readFile(const QString &fn, QString *contents, QString *errStr)
{
#ifndef PROEVALUATOR_FULL
# ifdef PROEVALUATOR_THREAD_SAFE
QMutexLocker locker(&m_mutex);
# endif
QHash<QString, QString>::ConstIterator it = m_files.constFind(fn);
if (it != m_files.constEnd()) {
if (it->constData() == m_magicMissing.constData()) {
*errStr = fL1S("No such file or directory");
return false;
}
if (it->constData() != m_magicExisting.constData()) {
*contents = *it;
return true;
}
}
#endif
QFile file(fn);
if (!file.open(QIODevice::ReadOnly)) {
#ifndef PROEVALUATOR_FULL
if (!IoUtils::exists(fn)) {
m_files[fn] = m_magicMissing;
*errStr = fL1S("No such file or directory");
} else
#endif
*errStr = file.errorString();
return false;
}
#ifndef PROEVALUATOR_FULL
m_files[fn] = m_magicExisting;
#endif
QByteArray bcont = file.readAll();
if (bcont.startsWith("\xef\xbb\xbf")) {
// UTF-8 BOM will cause subtle errors
*errStr = fL1S("Unexpected UTF-8 BOM");
return false;
}
*contents = QString::fromLocal8Bit(bcont);
return true;
}
bool QMakeVfs::exists(const QString &fn)
{
#ifndef PROEVALUATOR_FULL
# ifdef PROEVALUATOR_THREAD_SAFE
QMutexLocker locker(&m_mutex);
# endif
QHash<QString, QString>::ConstIterator it = m_files.constFind(fn);
if (it != m_files.constEnd())
return it->constData() != m_magicMissing.constData();
#endif
bool ex = IoUtils::exists(fn);
#ifndef PROEVALUATOR_FULL
m_files[fn] = ex ? m_magicExisting : m_magicMissing;
#endif
return ex;
}
#ifndef PROEVALUATOR_FULL
// This should be called when the sources may have changed (e.g., VCS update).
void QMakeVfs::invalidateCache()
{
# ifdef PROEVALUATOR_THREAD_SAFE
QMutexLocker locker(&m_mutex);
# endif
QHash<QString, QString>::Iterator it = m_files.begin(), eit = m_files.end();
while (it != eit) {
if (it->constData() == m_magicMissing.constData()
||it->constData() == m_magicExisting.constData())
it = m_files.erase(it);
else
++it;
}
}
// This should be called when generated files may have changed (e.g., actual build).
void QMakeVfs::invalidateContents()
{
# ifdef PROEVALUATOR_THREAD_SAFE
QMutexLocker locker(&m_mutex);
# endif
m_files.clear();
}
#endif
QT_END_NAMESPACE
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