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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Build Suite.
**
** 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.
**
****************************************************************************/
#include "artifactcleaner.h"
#include "artifact.h"
#include "artifactvisitor.h"
#include "productbuilddata.h"
#include "projectbuilddata.h"
#include "transformer.h"
#include <language/language.h>
#include <logging/translator.h>
#include <tools/cleanoptions.h>
#include <tools/error.h>
#include <tools/fileinfo.h>
#include <tools/progressobserver.h>
#include <tools/qbsassert.h>
#include <QCoreApplication>
#include <QDir>
#include <QDirIterator>
#include <QFileInfo>
#include <QSet>
#include <QString>
namespace qbs {
namespace Internal {
static void printRemovalMessage(const QString &path, bool dryRun, const Logger &logger)
{
if (dryRun)
logger.qbsInfo() << Tr::tr("Would remove '%1'.").arg(path);
else
logger.qbsDebug() << "Removing '" << path << "'.";
}
static void invalidateArtifactTimestamp(Artifact *artifact)
{
if (artifact->timestamp().isValid()) {
artifact->clearTimestamp();
artifact->product->topLevelProject()->buildData->isDirty = true;
}
}
static void removeArtifactFromDisk(Artifact *artifact, bool dryRun, const Logger &logger)
{
QFileInfo fileInfo(artifact->filePath());
if (!FileInfo::fileExists(fileInfo)) {
if (!dryRun)
invalidateArtifactTimestamp(artifact);
return;
}
printRemovalMessage(fileInfo.filePath(), dryRun, logger);
if (dryRun)
return;
invalidateArtifactTimestamp(artifact);
QString errorMessage;
if (!removeFileRecursion(fileInfo, &errorMessage))
throw ErrorInfo(errorMessage);
}
class CleanupVisitor : public ArtifactVisitor
{
public:
CleanupVisitor(const CleanOptions &options, const ProgressObserver *observer,
const Logger &logger)
: ArtifactVisitor(Artifact::Generated)
, m_options(options)
, m_observer(observer)
, m_logger(logger)
, m_hasError(false)
{
}
void visitProduct(const ResolvedProductConstPtr &product)
{
m_product = product;
ArtifactVisitor::visitProduct(product);
}
const QSet<QString> &directories() const { return m_directories; }
bool hasError() const { return m_hasError; }
private:
void doVisit(Artifact *artifact)
{
if (m_observer->canceled())
throw ErrorInfo(Tr::tr("Cleaning up was canceled."));
if (artifact->product != m_product)
return;
if (m_options.cleanType() == CleanOptions::CleanupTemporaries) {
QBS_CHECK(artifact->transformer);
foreach (Artifact * const sibling, artifact->transformer->outputs) {
if (artifact->product->targetArtifacts().contains(sibling))
return;
}
}
try {
removeArtifactFromDisk(artifact, m_options.dryRun(), m_logger);
} catch (const ErrorInfo &error) {
if (!m_options.keepGoing())
throw;
m_logger.printWarning(error);
m_hasError = true;
}
m_directories << artifact->dirPath();
}
const CleanOptions m_options;
const ProgressObserver * const m_observer;
Logger m_logger;
bool m_hasError;
ResolvedProductConstPtr m_product;
QSet<QString> m_directories;
};
ArtifactCleaner::ArtifactCleaner(const Logger &logger, ProgressObserver *observer)
: m_logger(logger), m_observer(observer)
{
}
void ArtifactCleaner::cleanup(const TopLevelProjectPtr &project,
const QList<ResolvedProductPtr> &products, const CleanOptions &options)
{
m_hasError = false;
const QString configString = Tr::tr(" for configuration %1").arg(project->id());
m_observer->initialize(Tr::tr("Cleaning up%1").arg(configString), products.count() + 1);
QSet<QString> directories;
foreach (const ResolvedProductPtr &product, products) {
CleanupVisitor visitor(options, m_observer, m_logger);
visitor.visitProduct(product);
directories.unite(visitor.directories());
if (visitor.hasError())
m_hasError = true;
m_observer->incrementProgressValue();
}
// Directories created during the build are not artifacts (TODO: should they be?),
// so we have to clean them up manually.
QList<QString> dirList = directories.toList();
for (int i = 0; i < dirList.count(); ++i) {
const QString &dir = dirList.at(i);
if (!dir.startsWith(project->buildDirectory))
continue;
if (FileInfo(dir).exists())
removeEmptyDirectories(dir, options);
if (dir != project->buildDirectory) {
const QString parentDir = QDir::cleanPath(dir + QLatin1String("/.."));
if (parentDir != project->buildDirectory && !dirList.contains(parentDir))
dirList << parentDir;
}
}
m_observer->incrementProgressValue();
if (m_hasError)
throw ErrorInfo(Tr::tr("Failed to remove some files."));
m_observer->setFinished();
}
void ArtifactCleaner::removeEmptyDirectories(const QString &rootDir, const CleanOptions &options,
bool *isEmpty)
{
bool subTreeIsEmpty = true;
QDirIterator it(rootDir, QDir::Files | QDir::Dirs | QDir::Hidden | QDir::NoDotAndDotDot);
while (it.hasNext()) {
it.next();
if (!it.fileInfo().isSymLink() && it.fileInfo().isDir())
removeEmptyDirectories(it.filePath(), options, &subTreeIsEmpty);
else
subTreeIsEmpty = false;
}
if (subTreeIsEmpty) {
printRemovalMessage(rootDir, options.dryRun(), m_logger);
if (!QDir::root().rmdir(rootDir)) {
ErrorInfo error(Tr::tr("Failure to remove empty directory '%1'.").arg(rootDir));
if (!options.keepGoing())
throw error;
m_logger.printWarning(error);
m_hasError = true;
subTreeIsEmpty = false;
}
}
if (!subTreeIsEmpty && isEmpty)
*isEmpty = false;
}
} // namespace Internal
} // namespace qbs
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