76 lines
2.0 KiB
C++
76 lines
2.0 KiB
C++
/*
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* Strawberry Music Player
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* Copyright 2024, 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 <QString>
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#include <QFile>
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#include <QRandomGenerator>
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#include "core/logging.h"
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#include "temporaryfile.h"
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using namespace Qt::Literals::StringLiterals;
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TemporaryFile::TemporaryFile(const QString &filename_pattern) {
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int i = 0;
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do {
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filename_ = GenerateFilename(filename_pattern);
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++i;
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} while (QFile::exists(filename_) && i < 100);
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if (QFile::exists(filename_)) {
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qLog(Error) << "Could not get a filename from pattern" << filename_pattern;
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filename_.clear();
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}
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else {
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qLog(Debug) << "Temporary file" << filename_ << "available";
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}
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}
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TemporaryFile::~TemporaryFile() {
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if (!filename_.isEmpty() && QFile::exists(filename_)) {
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qLog(Debug) << "Deleting temporary file" << filename_;
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if (!QFile::remove(filename_)) {
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qLog(Debug) << "Could not delete temporary file" << filename_;
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}
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}
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}
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QString TemporaryFile::GenerateFilename(const QString &filename_pattern) const {
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static const QString random_chars = u"abcdefghijklmnopqrstuvwxyz0123456789"_s;
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QString filename = filename_pattern;
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Q_FOREVER {
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const int i = static_cast<int>(filename.indexOf(u'X'));
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if (i == -1) break;
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const qint64 index = QRandomGenerator::global()->bounded(0, random_chars.length());
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const QChar random_char = random_chars.at(index);
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filename[i] = random_char;
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}
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return filename;
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}
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