looqs/shared/filesaver.cpp

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#include <QSqlError>
#include <QDateTime>
#include <QtConcurrentMap>
#include <QProcess>
#include <functional>
#include "filesaver.h"
#include "processor.h"
#include "pdfprocessor.h"
#include "defaulttextprocessor.h"
#include "tagstripperprocessor.h"
#include "nothingprocessor.h"
#include "odtprocessor.h"
#include "odsprocessor.h"
#include "utils.h"
#include "logger.h"
FileSaver::FileSaver(SqliteDbService &dbService)
{
this->dbService = &dbService;
}
SaveFileResult FileSaver::addFile(QString path)
{
QFileInfo info(path);
QString absPath = info.absoluteFilePath();
auto mtime = info.lastModified().toSecsSinceEpoch();
if(this->dbService->fileExistsInDatabase(absPath, mtime))
{
return SKIPPED;
}
return saveFile(info);
}
SaveFileResult FileSaver::updateFile(QString path)
{
QFileInfo info(path);
return saveFile(info);
}
int FileSaver::addFiles(const QVector<QString> paths, bool keepGoing, bool verbose)
{
return processFiles(paths, std::bind(&FileSaver::addFile, this, std::placeholders::_1), keepGoing, verbose);
}
int FileSaver::updateFiles(const QVector<QString> paths, bool keepGoing, bool verbose)
{
return processFiles(paths, std::bind(&FileSaver::updateFile, this, std::placeholders::_1), keepGoing, verbose);
}
int FileSaver::processFiles(const QVector<QString> paths, std::function<SaveFileResult(QString path)> saverFunc,
bool keepGoing, bool verbose)
{
std::atomic<bool> terminate{false};
std::atomic<int> processedCount{0};
QtConcurrent::blockingMap(paths,
[&](const QString &path)
{
if(terminate.load())
{
return;
}
if(verbose)
{
Logger::info() << "Processing " << path << Qt::endl;
}
SaveFileResult result = saverFunc(path);
if(result == DBFAIL || result == PROCESSFAIL)
{
Logger::error() << "Failed to process " << path << Qt::endl;
if(!keepGoing)
{
terminate = true;
}
}
else
{
++processedCount;
if(verbose)
{
if(result == SKIPPED)
{
Logger::info() << "Skipped" << path
<< "as it already exists in the database" << Qt::endl;
}
else if(result == OK)
{
Logger::info() << "Saved" << path << Qt::endl;
}
}
}
});
return processedCount.load();
}
SaveFileResult FileSaver::saveFile(const QFileInfo &fileInfo)
{
QVector<PageData> pageData;
QString canonicalPath = fileInfo.canonicalFilePath();
int status = -1;
if(!fileInfo.exists())
{
return NOTFOUND;
}
if(fileInfo.isFile())
{
for(QString &excludedPath : this->excludedPaths)
{
if(canonicalPath.startsWith(excludedPath))
{
return SKIPPED;
}
}
QProcess process;
QStringList args;
args << "process" << canonicalPath;
process.setProcessChannelMode(QProcess::ForwardedErrorChannel);
process.start("/proc/self/exe", args);
process.waitForStarted();
process.waitForFinished();
/* TODO: This is suboptimal as it eats lots of mem
* but avoids a weird QDataStream/QProcess behaviour
* where it thinks the process has ended when it has not...
*
* Also, there seem to be issues with reads not being blocked, so
* the only reliable way appears to be waiting until the process
* finishes.
*/
QDataStream in(process.readAllStandardOutput());
while(!in.atEnd())
{
PageData pd;
in >> pd;
pageData.append(pd);
}
status = process.exitCode();
if(status != 0 && status != NOTHING_PROCESSED)
{
Logger::error() << "FileSaver::saveFile(): Error while processing" << canonicalPath << ":"
<< "Exit code " << status << Qt::endl;
return PROCESSFAIL;
}
}
// Could happen if a file corrupted for example
if(pageData.isEmpty() && status != NOTHING_PROCESSED)
{
Logger::error() << "Could not get any content for " << canonicalPath << Qt::endl;
}
return this->dbService->saveFile(fileInfo, pageData);
}