vasilito
cf12defd28
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
73 lines
1.8 KiB
C++
73 lines
1.8 KiB
C++
/* This file is part of the KDE project
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SPDX-FileCopyrightText: 2014 Maarten De Meyer <de.meyer.maarten@gmail.com>
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SPDX-License-Identifier: BSD-2-Clause
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*/
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/*
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* bzip2gzip
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* This example shows the usage of KCompressionDevice.
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* It converts BZip2 files to GZip archives.
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*
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* api: KCompressionDevice(QIODevice * inputDevice, bool autoDeleteInputDevice, CompressionType type)
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* api: KCompressionDevice(const QString & fileName, CompressionType type)
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* api: QIODevice::readAll()
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* api: QIODevice::read(qint64 maxSize)
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* api: QIODevice::write(const QByteArray &data)
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*
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* Usage: ./bzip2gzip <archive.bz2>
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*/
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#include <QCoreApplication>
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#include <QFile>
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#include <QFileInfo>
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#include <QStringList>
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#include <KCompressionDevice>
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int main(int argc, char *argv[])
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{
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QCoreApplication app(argc, argv);
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QStringList args(app.arguments());
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if (args.size() != 2) {
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qWarning("Usage: ./bzip2gzip <archive.bz2>");
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return 1;
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}
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QString inputFile = args.at(1);
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QFile file(inputFile);
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QFileInfo info(inputFile);
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if (info.suffix() != QLatin1String("bz2")) {
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qCritical("Error: not a valid BZip2 file!");
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return 1;
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}
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//@@snippet_begin(kcompressiondevice_example)
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// Open the input archive
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KCompressionDevice input(&file, false, KCompressionDevice::BZip2);
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input.open(QIODevice::ReadOnly);
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QString outputFile = (info.completeBaseName() + QLatin1String(".gz"));
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// Open the new output file
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KCompressionDevice output(outputFile, KCompressionDevice::GZip);
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output.open(QIODevice::WriteOnly);
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while (!input.atEnd()) {
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// Read and uncompress the data
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QByteArray data = input.read(512);
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// Write data like you would to any other QIODevice
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output.write(data);
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}
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input.close();
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output.close();
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//@@snippet_end
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return 0;
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}
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