2020-11-29 18:54:46 +01:00

129 lines
3.3 KiB
C++
Executable File

// For license of this file, see <project-root-folder>/LICENSE.md.
#include "miscellaneous/iofactory.h"
#include "definitions/definitions.h"
#include "exceptions/ioexception.h"
#include <QDataStream>
#include <QDir>
#include <QFile>
#include <QFileInfo>
#include <QObject>
#include <QProcess>
#include <QTemporaryFile>
IOFactory::IOFactory() = default;
bool IOFactory::isFolderWritable(const QString& folder) {
QString real_file = folder;
if (!real_file.endsWith(QDir::separator())) {
real_file += QDir::separator();
}
real_file += "test-permissions-file";
return QTemporaryFile(real_file).open();
}
QString IOFactory::getSystemFolder(QStandardPaths::StandardLocation location) {
QStringList locations = QStandardPaths::standardLocations(location);
return locations.isEmpty() ? QString() : locations.at(0);
}
QString IOFactory::ensureUniqueFilename(const QString& name, const QString& append_format) {
if (!QFile::exists(name)) {
return name;
}
QString tmp_filename = name;
int i = 1;
while (QFile::exists(tmp_filename)) {
tmp_filename = name;
const int index = tmp_filename.lastIndexOf(QL1C('.'));
const QString append_string = append_format.arg(i++);
if (index < 0) {
tmp_filename.append(append_string);
}
else {
tmp_filename = tmp_filename.left(index) + append_string + tmp_filename.mid(index);
}
}
return tmp_filename;
}
QString IOFactory::filterBadCharsFromFilename(const QString& name) {
QString value = name;
value.replace(QL1C('/'), QL1C('-'));
value.remove(QL1C('\\'));
value.remove(QL1C(':'));
value.remove(QL1C('*'));
value.remove(QL1C('?'));
value.remove(QL1C('"'));
value.remove(QL1C('<'));
value.remove(QL1C('>'));
value.remove(QL1C('|'));
return value;
}
bool IOFactory::startProcessDetached(const QString& program, const QStringList& arguments,
const QString& native_arguments, const QString& working_directory) {
QProcess process;
process.setProgram(program);
process.setArguments(arguments);
#if defined(Q_OS_WIN) || defined(Q_CLANG_QDOC)
process.setNativeArguments(native_arguments);
#else
if (arguments.isEmpty() && !native_arguments.isEmpty()) {
process.setArguments({ native_arguments });
}
#endif
process.setWorkingDirectory(working_directory);
return process.startDetached(nullptr);
}
QByteArray IOFactory::readFile(const QString& file_path) {
QFile input_file(file_path);
QByteArray input_data;
if (input_file.open(QIODevice::Text | QIODevice::Unbuffered | QIODevice::ReadOnly)) {
input_data = input_file.readAll();
input_file.close();
return input_data;
}
else {
throw IOException(tr("Cannot open file '%1' for reading.").arg(QDir::toNativeSeparators(file_path)));
}
}
void IOFactory::writeFile(const QString& file_path, const QByteArray& data) {
QFile input_file(file_path);
if (input_file.open(QIODevice::WriteOnly)) {
input_file.write(data);
input_file.close();
}
else {
throw IOException(tr("Cannot open file '%1' for writting.").arg(QDir::toNativeSeparators(file_path)));
}
}
bool IOFactory::copyFile(const QString& source, const QString& destination) {
if (QFile::exists(destination)) {
if (!QFile::remove(destination)) {
return false;
}
}
return QFile::copy(source, destination);
}