/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt VS Tools.
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**
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "ioutils.h"
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#include <qdir.h>
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#include <qfile.h>
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#ifdef Q_OS_WIN
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# include <windows.h>
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#else
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# include <sys/types.h>
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# include <sys/stat.h>
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# include <unistd.h>
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#endif
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QT_BEGIN_NAMESPACE
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using namespace QMakeInternal;
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IoUtils::FileType IoUtils::fileType(const QString &fileName)
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{
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Q_ASSERT(fileName.isEmpty() || isAbsolutePath(fileName));
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#ifdef Q_OS_WIN
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DWORD attr = GetFileAttributesW((WCHAR*)fileName.utf16());
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if (attr == INVALID_FILE_ATTRIBUTES)
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return FileNotFound;
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return (attr & FILE_ATTRIBUTE_DIRECTORY) ? FileIsDir : FileIsRegular;
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#else
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struct ::stat st;
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if (::stat(fileName.toLocal8Bit().constData(), &st))
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return FileNotFound;
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return S_ISDIR(st.st_mode) ? FileIsDir : FileIsRegular;
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#endif
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}
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bool IoUtils::isRelativePath(const QString &path)
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{
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if (path.startsWith(QLatin1Char('/')))
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return false;
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#ifdef Q_OS_WIN
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if (path.startsWith(QLatin1Char('\\')))
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return false;
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// Unlike QFileInfo, this won't accept a relative path with a drive letter.
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// Such paths result in a royal mess anyway ...
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if (path.length() >= 3 && path.at(1) == QLatin1Char(':') && path.at(0).isLetter()
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&& (path.at(2) == QLatin1Char('/') || path.at(2) == QLatin1Char('\\')))
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return false;
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#endif
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return true;
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}
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QStringRef IoUtils::fileName(const QString &fileName)
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{
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return fileName.midRef(fileName.lastIndexOf(QLatin1Char('/')) + 1);
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}
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QString IoUtils::resolvePath(const QString &baseDir, const QString &fileName)
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{
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if (fileName.isEmpty())
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return QString();
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if (isAbsolutePath(fileName))
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return QDir::cleanPath(fileName);
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return QDir::cleanPath(baseDir + QLatin1Char('/') + fileName);
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}
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inline static
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bool hasSpecialChars(const QString &arg, const uchar (&iqm)[16])
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{
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for (int x = arg.length() - 1; x >= 0; --x) {
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ushort c = arg.unicode()[x].unicode();
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if ((c < sizeof(iqm) * 8) && (iqm[c / 8] & (1 << (c & 7))))
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return true;
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}
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return false;
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}
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QString IoUtils::shellQuoteUnix(const QString &arg)
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{
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// Chars that should be quoted (TM). This includes:
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static const uchar iqm[] = {
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0xff, 0xff, 0xff, 0xff, 0xdf, 0x07, 0x00, 0xd8,
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0x00, 0x00, 0x00, 0x38, 0x01, 0x00, 0x00, 0x78
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}; // 0-32 \'"$`<>|;&(){}*?#!~[]
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if (!arg.length())
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return QString::fromLatin1("\"\"");
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QString ret(arg);
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if (hasSpecialChars(ret, iqm)) {
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ret.replace(QLatin1Char('\''), QLatin1String("'\\''"));
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ret.prepend(QLatin1Char('\''));
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ret.append(QLatin1Char('\''));
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}
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return ret;
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}
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QString IoUtils::shellQuoteWin(const QString &arg)
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{
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// Chars that should be quoted (TM). This includes:
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// - control chars & space
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// - the shell meta chars "&()<>^|
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// - the potential separators ,;=
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static const uchar iqm[] = {
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0xff, 0xff, 0xff, 0xff, 0x45, 0x13, 0x00, 0x78,
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0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x10
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};
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if (!arg.length())
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return QString::fromLatin1("\"\"");
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QString ret(arg);
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if (hasSpecialChars(ret, iqm)) {
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// Quotes are escaped and their preceding backslashes are doubled.
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// It's impossible to escape anything inside a quoted string on cmd
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// level, so the outer quoting must be "suspended".
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ret.replace(QRegExp(QLatin1String("(\\\\*)\"")), QLatin1String("\"\\1\\1\\^\"\""));
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// The argument must not end with a \ since this would be interpreted
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// as escaping the quote -- rather put the \ behind the quote: e.g.
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// rather use "foo"\ than "foo\"
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int i = ret.length();
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while (i > 0 && ret.at(i - 1) == QLatin1Char('\\'))
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--i;
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ret.insert(i, QLatin1Char('"'));
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ret.prepend(QLatin1Char('"'));
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}
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return ret;
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}
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QT_END_NAMESPACE
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