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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QString>
#include <QXmlStreamReader>
#include <QFile>
#include <QDir>
int filterResourceFile(const QString &input, const QString &output)
{
enum State {
InitialState,
InRCC,
InResource,
InFile
};
State state = InitialState;
QString prefix;
QString currentFileName;
QXmlStreamAttributes fileAttributes;
QFile file(input);
if (!file.open(QIODevice::ReadOnly)) {
fprintf(stderr, "Cannot open %s for reading.\n", qPrintable(input));
return EXIT_FAILURE;
}
QDir inputDirectory = QFileInfo(file).absoluteDir();
QDir outputDirectory = QFileInfo(output).absoluteDir();
QString outputString;
QXmlStreamWriter writer(&outputString);
writer.setAutoFormatting(true);
QStringList remainingFiles;
QXmlStreamReader reader(&file);
while (!reader.atEnd()) {
switch (reader.readNext()) {
case QXmlStreamReader::StartDocument: {
QStringRef version = reader.documentVersion();
if (!version.isEmpty())
writer.writeStartDocument(version.toString());
else
writer.writeStartDocument();
break;
}
case QXmlStreamReader::EndDocument:
writer.writeEndDocument();
break;
case QXmlStreamReader::StartElement:
if (reader.name() == QStringLiteral("RCC")) {
if (state != InitialState) {
fprintf(stderr, "Unexpected RCC tag in line %d\n", int(reader.lineNumber()));
return EXIT_FAILURE;
}
state = InRCC;
} else if (reader.name() == QStringLiteral("qresource")) {
if (state != InRCC) {
fprintf(stderr, "Unexpected qresource tag in line %d\n", int(reader.lineNumber()));
return EXIT_FAILURE;
}
state = InResource;
QXmlStreamAttributes attributes = reader.attributes();
if (attributes.hasAttribute(QStringLiteral("prefix")))
prefix = attributes.value(QStringLiteral("prefix")).toString();
if (!prefix.startsWith(QLatin1Char('/')))
prefix.prepend(QLatin1Char('/'));
if (!prefix.endsWith(QLatin1Char('/')))
prefix.append(QLatin1Char('/'));
} else if (reader.name() == QStringLiteral("file")) {
if (state != InResource) {
fprintf(stderr, "Unexpected file tag in line %d\n", int(reader.lineNumber()));
return EXIT_FAILURE;
}
state = InFile;
fileAttributes = reader.attributes();
continue;
}
writer.writeStartElement(reader.name().toString());
writer.writeAttributes(reader.attributes());
continue;
case QXmlStreamReader::EndElement:
if (reader.name() == QStringLiteral("file")) {
if (state != InFile) {
fprintf(stderr, "Unexpected end of file tag in line %d\n", int(reader.lineNumber()));
return EXIT_FAILURE;
}
state = InResource;
continue;
} else if (reader.name() == QStringLiteral("qresource")) {
if (state != InResource) {
fprintf(stderr, "Unexpected end of qresource tag in line %d\n", int(reader.lineNumber()));
return EXIT_FAILURE;
}
state = InRCC;
} else if (reader.name() == QStringLiteral("RCC")) {
if (state != InRCC) {
fprintf(stderr, "Unexpected end of RCC tag in line %d\n", int(reader.lineNumber()));
return EXIT_FAILURE;
}
state = InitialState;
}
writer.writeEndElement();
continue;
case QXmlStreamReader::Characters:
if (reader.isWhitespace())
break;
if (state != InFile)
return EXIT_FAILURE;
currentFileName = reader.text().toString();
if (currentFileName.isEmpty())
continue;
if (!currentFileName.endsWith(QStringLiteral(".qml"))
&& !currentFileName.endsWith(QStringLiteral(".js"))
&& !currentFileName.endsWith(QStringLiteral(".mjs"))) {
writer.writeStartElement(QStringLiteral("file"));
if (!fileAttributes.hasAttribute(QStringLiteral("alias")))
fileAttributes.append(QStringLiteral("alias"), currentFileName);
currentFileName = inputDirectory.absoluteFilePath(currentFileName);
currentFileName = outputDirectory.relativeFilePath(currentFileName);
remainingFiles << currentFileName;
writer.writeAttributes(fileAttributes);
writer.writeCharacters(currentFileName);
writer.writeEndElement();
}
continue;
default: break;
}
}
if (!remainingFiles.isEmpty()) {
QFile outputFile(output);
if (!outputFile.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
fprintf(stderr, "Cannot open %s for writing.\n", qPrintable(output));
return EXIT_FAILURE;
}
const QByteArray outputStringUtf8 = outputString.toUtf8();
if (outputFile.write(outputStringUtf8) != outputStringUtf8.size())
return EXIT_FAILURE;
outputFile.close();
if (outputFile.error() != QFileDevice::NoError)
return EXIT_FAILURE;
// The build system expects this output if we wrote a qrc file and no output
// if no files remain.
fprintf(stdout, "New resource file written with %d files.\n", remainingFiles.count());
}
return EXIT_SUCCESS;
}
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