136 lines
3.6 KiB
C++
136 lines
3.6 KiB
C++
/*
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* Strawberry Music Player
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* Copyright 2010, David Sansome <me@davidsansome.com>
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* Copyright 2018-2021, Jonas Kvinge <jonas@jkvinge.net>
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*
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* Strawberry is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Strawberry is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <QtGlobal>
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#include <memory>
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#include <QByteArray>
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#include <QString>
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#include <QIODevice>
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#include <QDir>
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#include <QFile>
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#include "core/logging.h"
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#include "core/scoped_ptr.h"
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#include "fileutils.h"
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namespace Utilities {
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using std::unique_ptr;
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QByteArray ReadDataFromFile(const QString &filename) {
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QFile file(filename);
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QByteArray data;
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if (file.open(QIODevice::ReadOnly)) {
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data = file.readAll();
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file.close();
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}
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else {
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qLog(Error) << "Failed to open file" << filename << "for reading:" << file.errorString();
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}
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return data;
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}
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bool Copy(QIODevice *source, QIODevice *destination) {
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if (!source->open(QIODevice::ReadOnly)) return false;
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if (!destination->open(QIODevice::WriteOnly)) return false;
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const qint64 bytes = source->size();
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unique_ptr<char[]> data(new char[bytes]);
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qint64 pos = 0;
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qint64 bytes_read = 0;
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do {
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bytes_read = source->read(data.get() + pos, bytes - pos);
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if (bytes_read == -1) return false;
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pos += bytes_read;
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} while (bytes_read > 0 && pos != bytes);
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pos = 0;
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qint64 bytes_written = 0;
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do {
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bytes_written = destination->write(data.get() + pos, bytes - pos);
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if (bytes_written == -1) return false;
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pos += bytes_written;
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} while (bytes_written > 0 && pos != bytes);
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return true;
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}
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bool CopyRecursive(const QString &source, const QString &destination) {
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// Make the destination directory
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QString dir_name = source.section(QLatin1Char('/'), -1, -1);
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QString dest_path = destination + QLatin1Char('/') + dir_name;
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QDir().mkpath(dest_path);
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QDir dir(source);
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const QStringList children_dirs = dir.entryList(QDir::NoDotAndDotDot | QDir::Dirs);
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for (const QString &child : children_dirs) {
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if (!CopyRecursive(source + QLatin1Char('/') + child, dest_path)) {
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qLog(Warning) << "Failed to copy dir" << source + QLatin1Char('/') + child << "to" << dest_path;
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return false;
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}
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}
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const QStringList children_files = dir.entryList(QDir::NoDotAndDotDot | QDir::Files);
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for (const QString &child : children_files) {
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if (!QFile::copy(source + QLatin1Char('/') + child, dest_path + QLatin1Char('/') + child)) {
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qLog(Warning) << "Failed to copy file" << source + QLatin1Char('/') + child << "to" << dest_path;
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return false;
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}
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}
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return true;
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}
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bool RemoveRecursive(const QString &path) {
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QDir dir(path);
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const QStringList children_dirs = dir.entryList(QDir::NoDotAndDotDot | QDir::Dirs | QDir::Hidden);
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for (const QString &child : children_dirs) {
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if (!RemoveRecursive(path + QLatin1Char('/') + child)) {
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return false;
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}
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}
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const QStringList children_files = dir.entryList(QDir::NoDotAndDotDot | QDir::Files | QDir::Hidden);
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for (const QString &child : children_files) {
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if (!QFile::remove(path + QLatin1Char('/') + child)) {
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return false;
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}
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}
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return dir.rmdir(path);
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}
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} // namespace Utilities
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