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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the utils of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** 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-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <qcoreapplication.h>
#include <qdiriterator.h>
#include <qfile.h>
#include <qmetaobject.h>
#include <qstring.h>
#include <qtextstream.h>
#include <qcommandlineparser.h>
#include <qdebug.h>
#include <limits.h>
#include <stdio.h>
static bool printFilename = true;
static bool modify = false;
QString signature(const QString &line, int pos)
{
int start = pos;
// find first open parentheses
while (start < line.length() && line.at(start) != QLatin1Char('('))
++start;
int i = ++start;
int par = 1;
// find matching closing parentheses
while (i < line.length() && par > 0) {
if (line.at(i) == QLatin1Char('('))
++par;
else if (line.at(i) == QLatin1Char(')'))
--par;
++i;
}
if (par == 0)
return line.mid(start, i - start - 1);
return QString();
}
bool checkSignature(const QString &fileName, QString &line, const char *sig)
{
static QStringList fileList;
int idx = -1;
bool found = false;
while ((idx = line.indexOf(sig, ++idx)) != -1) {
const QByteArray sl(signature(line, idx).toLocal8Bit());
QByteArray nsl(QMetaObject::normalizedSignature(sl.constData()));
if (sl != nsl) {
found = true;
if (printFilename && !fileList.contains(fileName)) {
fileList.prepend(fileName);
printf("%s\n", fileName.toLocal8Bit().constData());
}
if (modify)
line.replace(sl, nsl);
//qDebug("expected '%s', got '%s'", nsl.data(), sl.data());
}
}
return found;
}
void writeChanges(const QString &fileName, const QStringList &lines)
{
QFile file(fileName);
if (!file.open(QIODevice::WriteOnly)) {
qDebug("unable to open file '%s' for writing (%s)", fileName.toLocal8Bit().constData(), file.errorString().toLocal8Bit().constData());
return;
}
QTextStream stream(&file);
for (int i = 0; i < lines.count(); ++i)
stream << lines.at(i);
file.close();
}
void check(const QString &fileName)
{
QFile file(fileName);
if (!file.open(QIODevice::ReadOnly)) {
qDebug("unable to open file: '%s' (%s)", fileName.toLocal8Bit().constData(), file.errorString().toLocal8Bit().constData());
return;
}
QStringList lines;
bool found = false;
while (true) {
QByteArray bline = file.readLine(16384);
if (bline.isEmpty())
break;
QString line = QString::fromLocal8Bit(bline);
found |= checkSignature(fileName, line, "SLOT");
found |= checkSignature(fileName, line, "SIGNAL");
if (modify)
lines << line;
}
file.close();
if (found && modify) {
printf("Modifying file: '%s'\n", fileName.toLocal8Bit().constData());
writeChanges(fileName, lines);
}
}
void traverse(const QString &path)
{
QDirIterator dirIterator(path, QDir::NoDotAndDotDot | QDir::Dirs | QDir::Files | QDir::NoSymLinks);
while (dirIterator.hasNext()) {
QString filePath = dirIterator.next();
if (filePath.endsWith(".cpp"))
check(filePath);
else if (QFileInfo(filePath).isDir())
traverse(filePath); // recurse
}
}
int main(int argc, char *argv[])
{
QCoreApplication app(argc, argv);
QCommandLineParser parser;
parser.setApplicationDescription(
QStringLiteral("Qt Normalize tool (Qt %1)\nOutputs all filenames that contain non-normalized SIGNALs and SLOTs")
.arg(QString::fromLatin1(QT_VERSION_STR)));
parser.addHelpOption();
parser.addVersionOption();
QCommandLineOption modifyOption(QStringLiteral("modify"),
QStringLiteral("Fix all occurrences of non-normalized SIGNALs and SLOTs."));
parser.addOption(modifyOption);
parser.addPositionalArgument(QStringLiteral("path"),
QStringLiteral("can be a single file or a directory (in which case, look for *.cpp recursively)"));
parser.process(app);
if (parser.positionalArguments().count() != 1)
parser.showHelp(1);
QString path = parser.positionalArguments().first();
if (path == "-")
parser.showHelp(1);
if (parser.isSet(modifyOption)) {
printFilename = false;
modify = true;
}
QFileInfo fi(path);
if (fi.isFile()) {
check(path);
} else if (fi.isDir()) {
if (!path.endsWith("/"))
path.append("/");
traverse(path);
} else {
qWarning("Don't know what to do with '%s'", path.toLocal8Bit().constData());
return 1;
}
return 0;
}
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