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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the tools applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 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 the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef UTILS_H
#define UTILS_H
#include <QStringList>
#include <QMap>
#include <QtCore/QFile>
#include <QtCore/QDir>
#include <QtCore/QDateTime>
#include <cstdio>
enum Platform { Windows, WinRt, Unix, UnknownPlatform };
#ifdef Q_OS_WIN
QString normalizeFileName(const QString &name);
QString winErrorMessage(unsigned long error);
QString findSdkTool(const QString &tool);
#else // !Q_OS_WIN
inline QString normalizeFileName(const QString &name) { return name; }
#endif // !Q_OS_WIN
bool createSymbolicLink(const QFileInfo &source, const QString &target, QString *errorMessage);
bool createDirectory(const QString &directory, QString *errorMessage);
QString findInPath(const QString &file);
QMap<QString, QString> queryQMakeAll(QString *errorMessage);
QString queryQMake(const QString &variable, QString *errorMessage);
QStringList findDependentLibs(const QString &binary, QString *errorMessage);
bool updateFile(const QString &sourceFileName, const QStringList &nameFilters,
const QString &targetDirectory, QString *errorMessage);
bool runProcess(const QString &binary, const QStringList &args,
const QString &workingDirectory = QString(),
unsigned long *exitCode = 0, QByteArray *stdOut = 0, QByteArray *stdErr = 0,
QString *errorMessage = 0);
bool readPeExecutable(const QString &peExecutableFileName, QString *errorMessage,
QStringList *dependentLibraries = 0, unsigned *wordSize = 0,
bool *isDebug = 0);
bool readElfExecutable(const QString &elfExecutableFileName, QString *errorMessage,
QStringList *dependentLibraries = 0, unsigned *wordSize = 0,
bool *isDebug = 0);
inline bool readExecutable(const QString &executableFileName, Platform platform,
QString *errorMessage, QStringList *dependentLibraries = 0,
unsigned *wordSize = 0, bool *isDebug = 0)
{
return platform == Unix ?
readElfExecutable(executableFileName, errorMessage, dependentLibraries, wordSize, isDebug) :
readPeExecutable(executableFileName, errorMessage, dependentLibraries, wordSize, isDebug);
}
// Return dependent modules of a PE executable files.
inline QStringList findDependentLibraries(const QString &peExecutableFileName, Platform platform, QString *errorMessage)
{
QStringList result;
readExecutable(peExecutableFileName, platform, errorMessage, &result);
return result;
}
extern int optVerboseLevel;
// Recursively update a file or directory, matching DirectoryFileEntryFunction against the QDir
// to obtain the files.
template <class DirectoryFileEntryFunction>
bool updateFile(const QString &sourceFileName,
DirectoryFileEntryFunction directoryFileEntryFunction,
const QString &targetDirectory,
QString *errorMessage)
{
const QFileInfo sourceFileInfo(sourceFileName);
const QString targetFileName = targetDirectory + QLatin1Char('/') + sourceFileInfo.fileName();
if (optVerboseLevel > 1)
std::fprintf(stderr, "Checking %s, %s\n", qPrintable(sourceFileName), qPrintable(targetFileName));
if (!sourceFileInfo.exists()) {
*errorMessage = QString::fromLatin1("%1 does not exist.").arg(QDir::toNativeSeparators(sourceFileName));
return false;
}
const QFileInfo targetFileInfo(targetFileName);
if (sourceFileInfo.isSymLink()) {
const QString sourcePath = sourceFileInfo.symLinkTarget();
const QString relativeSource = QDir(sourceFileInfo.absolutePath()).relativeFilePath(sourcePath);
if (relativeSource.contains(QLatin1Char('/'))) {
*errorMessage = QString::fromLatin1("Symbolic links across directories are not supported (%1).")
.arg(QDir::toNativeSeparators(sourceFileName));
return false;
}
// Update the linked-to file
if (!updateFile(sourcePath, directoryFileEntryFunction, targetDirectory, errorMessage))
return false;
if (targetFileInfo.exists()) {
if (!targetFileInfo.isSymLink()) {
*errorMessage = QString::fromLatin1("%1 already exists and is not a symbolic link.")
.arg(QDir::toNativeSeparators(targetFileName));
return false;
} // Not a symlink
const QString relativeTarget = QDir(targetFileInfo.absolutePath()).relativeFilePath(targetFileInfo.symLinkTarget());
if (relativeSource == relativeTarget) // Exists and points to same entry: happy.
return true;
QFile existingTargetFile(targetFileName);
if (!existingTargetFile.remove()) {
*errorMessage = QString::fromLatin1("Cannot remove existing symbolic link %1: %2")
.arg(QDir::toNativeSeparators(targetFileName), existingTargetFile.errorString());
return false;
}
} // target symbolic link exists
return createSymbolicLink(QFileInfo(targetDirectory + QLatin1Char('/') + relativeSource), sourceFileInfo.fileName(), errorMessage);
} // Source is symbolic link
if (sourceFileInfo.isDir()) {
if (targetFileInfo.exists()) {
if (!targetFileInfo.isDir()) {
*errorMessage = QString::fromLatin1("%1 already exists and is not a directory.")
.arg(QDir::toNativeSeparators(targetFileName));
return false;
} // Not a directory.
} else { // exists.
QDir d(targetDirectory);
std::printf("Creating %s.\n", qPrintable(targetFileName));
if (!d.mkdir(sourceFileInfo.fileName())) {
*errorMessage = QString::fromLatin1("Cannot create directory %1 under %2.")
.arg(sourceFileInfo.fileName(), QDir::toNativeSeparators(targetDirectory));
return false;
}
}
// Recurse into directory
QDir dir(sourceFileName);
const QStringList allEntries = directoryFileEntryFunction(dir) + dir.entryList(QDir::Dirs | QDir::NoDotAndDotDot);
foreach (const QString &entry, allEntries)
if (!updateFile(sourceFileName + QLatin1Char('/') + entry, directoryFileEntryFunction, targetFileName, errorMessage))
return false;
return true;
} // Source is directory.
if (targetFileInfo.exists()) {
if (targetFileInfo.lastModified() >= sourceFileInfo.lastModified()) {
if (optVerboseLevel)
std::printf("%s is up to date.\n", qPrintable(sourceFileInfo.fileName()));
return true;
}
QFile targetFile(targetFileName);
if (!targetFile.remove()) {
*errorMessage = QString::fromLatin1("Cannot remove existing file %1: %2")
.arg(QDir::toNativeSeparators(targetFileName), targetFile.errorString());
return false;
}
} // target exists
QFile file(sourceFileName);
if (optVerboseLevel)
std::printf("Updating %s.\n", qPrintable(sourceFileInfo.fileName()));
if (!file.copy(targetFileName)) {
*errorMessage = QString::fromLatin1("Cannot copy %1 to %2: %3")
.arg(QDir::toNativeSeparators(sourceFileName),
QDir::toNativeSeparators(targetFileName),
file.errorString());
return false;
}
return true;
}
// Base class to filter files by name filters functions to be passed to updateFile().
class NameFilterFileEntryFunction {
public:
explicit NameFilterFileEntryFunction(const QStringList &nameFilters) : m_nameFilters(nameFilters) {}
QStringList operator()(const QDir &dir) const { return dir.entryList(m_nameFilters, QDir::Files); }
private:
const QStringList m_nameFilters;
};
// Convenience for all files.
inline bool updateFile(const QString &sourceFileName, const QString &targetDirectory, QString *errorMessage)
{
return updateFile(sourceFileName, NameFilterFileEntryFunction(QStringList()), targetDirectory, errorMessage);
}
#endif // UTILS_H
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