05fc3aef53
Replace the current license disclaimer in files by a SPDX-License-Identifier. Files that have to be modified by hand are modified. License files are organized under LICENSES directory. Task-number: QTBUG-67283 Change-Id: Id880c92784c40f3bbde861c0d93f58151c18b9f1 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Lars Knoll <lars.knoll@qt.io> Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
315 lines
10 KiB
C++
315 lines
10 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
|
|
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
|
|
|
|
#include "ioutils.h"
|
|
|
|
#include <qdir.h>
|
|
#include <qfile.h>
|
|
#include <qregularexpression.h>
|
|
|
|
#ifdef Q_OS_WIN
|
|
# include <qt_windows.h>
|
|
#else
|
|
# include <sys/types.h>
|
|
# include <sys/stat.h>
|
|
# include <unistd.h>
|
|
# include <utime.h>
|
|
# include <fcntl.h>
|
|
# include <errno.h>
|
|
#endif
|
|
|
|
#define fL1S(s) QString::fromLatin1(s)
|
|
|
|
QT_BEGIN_NAMESPACE
|
|
|
|
using namespace QMakeInternal;
|
|
|
|
QString IoUtils::binaryAbsLocation(const QString &argv0)
|
|
{
|
|
QString ret;
|
|
if (!argv0.isEmpty() && isAbsolutePath(argv0)) {
|
|
ret = argv0;
|
|
} else if (argv0.contains(QLatin1Char('/'))
|
|
#ifdef Q_OS_WIN
|
|
|| argv0.contains(QLatin1Char('\\'))
|
|
#endif
|
|
) { // relative PWD
|
|
ret = QDir::current().absoluteFilePath(argv0);
|
|
} else { // in the PATH
|
|
QByteArray pEnv = qgetenv("PATH");
|
|
QDir currentDir = QDir::current();
|
|
#ifdef Q_OS_WIN
|
|
QStringList paths = QString::fromLocal8Bit(pEnv).split(QLatin1String(";"));
|
|
paths.prepend(QLatin1String("."));
|
|
#else
|
|
QStringList paths = QString::fromLocal8Bit(pEnv).split(QLatin1String(":"));
|
|
#endif
|
|
for (QStringList::const_iterator p = paths.constBegin(); p != paths.constEnd(); ++p) {
|
|
if ((*p).isEmpty())
|
|
continue;
|
|
QString candidate = currentDir.absoluteFilePath(*p + QLatin1Char('/') + argv0);
|
|
if (QFile::exists(candidate)) {
|
|
ret = candidate;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return QDir::cleanPath(ret);
|
|
}
|
|
|
|
IoUtils::FileType IoUtils::fileType(const QString &fileName)
|
|
{
|
|
Q_ASSERT(fileName.isEmpty() || isAbsolutePath(fileName));
|
|
#ifdef Q_OS_WIN
|
|
DWORD attr = GetFileAttributesW((WCHAR*)fileName.utf16());
|
|
if (attr == INVALID_FILE_ATTRIBUTES)
|
|
return FileNotFound;
|
|
return (attr & FILE_ATTRIBUTE_DIRECTORY) ? FileIsDir : FileIsRegular;
|
|
#else
|
|
struct ::stat st;
|
|
if (::stat(fileName.toLocal8Bit().constData(), &st))
|
|
return FileNotFound;
|
|
return S_ISDIR(st.st_mode) ? FileIsDir : S_ISREG(st.st_mode) ? FileIsRegular : FileNotFound;
|
|
#endif
|
|
}
|
|
|
|
bool IoUtils::isRelativePath(const QString &path)
|
|
{
|
|
#ifdef QMAKE_BUILTIN_PRFS
|
|
if (path.startsWith(QLatin1String(":/")))
|
|
return false;
|
|
#endif
|
|
#ifdef Q_OS_WIN
|
|
// Unlike QFileInfo, this considers only paths with both a drive prefix and
|
|
// a subsequent (back-)slash absolute:
|
|
if (path.length() >= 3 && path.at(1) == QLatin1Char(':') && path.at(0).isLetter()
|
|
&& (path.at(2) == QLatin1Char('/') || path.at(2) == QLatin1Char('\\'))) {
|
|
return false;
|
|
}
|
|
// ... unless, of course, they're UNC:
|
|
if (path.length() >= 2
|
|
&& (path.at(0).unicode() == '\\' || path.at(0).unicode() == '/')
|
|
&& path.at(1) == path.at(0)) {
|
|
return false;
|
|
}
|
|
#else
|
|
if (path.startsWith(QLatin1Char('/')))
|
|
return false;
|
|
#endif // Q_OS_WIN
|
|
return true;
|
|
}
|
|
|
|
QStringView IoUtils::pathName(const QString &fileName)
|
|
{
|
|
return QStringView{fileName}.left(fileName.lastIndexOf(QLatin1Char('/')) + 1);
|
|
}
|
|
|
|
QStringView IoUtils::fileName(const QString &fileName)
|
|
{
|
|
return QStringView(fileName).mid(fileName.lastIndexOf(QLatin1Char('/')) + 1);
|
|
}
|
|
|
|
QString IoUtils::resolvePath(const QString &baseDir, const QString &fileName)
|
|
{
|
|
if (fileName.isEmpty())
|
|
return QString();
|
|
if (isAbsolutePath(fileName))
|
|
return QDir::cleanPath(fileName);
|
|
#ifdef Q_OS_WIN // Add drive to otherwise-absolute path:
|
|
if (fileName.at(0).unicode() == '/' || fileName.at(0).unicode() == '\\') {
|
|
Q_ASSERT_X(isAbsolutePath(baseDir), "IoUtils::resolvePath", qUtf8Printable(baseDir));
|
|
return QDir::cleanPath(baseDir.left(2) + fileName);
|
|
}
|
|
#endif // Q_OS_WIN
|
|
return QDir::cleanPath(baseDir + QLatin1Char('/') + fileName);
|
|
}
|
|
|
|
inline static
|
|
bool isSpecialChar(ushort c, const uchar (&iqm)[16])
|
|
{
|
|
if ((c < sizeof(iqm) * 8) && (iqm[c / 8] & (1 << (c & 7))))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
inline static
|
|
bool hasSpecialChars(const QString &arg, const uchar (&iqm)[16])
|
|
{
|
|
for (int x = arg.length() - 1; x >= 0; --x) {
|
|
if (isSpecialChar(arg.unicode()[x].unicode(), iqm))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
QString IoUtils::shellQuoteUnix(const QString &arg)
|
|
{
|
|
// Chars that should be quoted (TM). This includes:
|
|
static const uchar iqm[] = {
|
|
0xff, 0xff, 0xff, 0xff, 0xdf, 0x07, 0x00, 0xd8,
|
|
0x00, 0x00, 0x00, 0x38, 0x01, 0x00, 0x00, 0x78
|
|
}; // 0-32 \'"$`<>|;&(){}*?#!~[]
|
|
|
|
if (!arg.length())
|
|
return QString::fromLatin1("''");
|
|
|
|
QString ret(arg);
|
|
if (hasSpecialChars(ret, iqm)) {
|
|
ret.replace(QLatin1Char('\''), QLatin1String("'\\''"));
|
|
ret.prepend(QLatin1Char('\''));
|
|
ret.append(QLatin1Char('\''));
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
QString IoUtils::shellQuoteWin(const QString &arg)
|
|
{
|
|
// Chars that should be quoted (TM). This includes:
|
|
// - control chars & space
|
|
// - the shell meta chars "&()<>^|
|
|
// - the potential separators ,;=
|
|
static const uchar iqm[] = {
|
|
0xff, 0xff, 0xff, 0xff, 0x45, 0x13, 0x00, 0x78,
|
|
0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x10
|
|
};
|
|
// Shell meta chars that need escaping.
|
|
static const uchar ism[] = {
|
|
0x00, 0x00, 0x00, 0x00, 0x40, 0x03, 0x00, 0x50,
|
|
0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x10
|
|
}; // &()<>^|
|
|
|
|
if (!arg.length())
|
|
return QString::fromLatin1("\"\"");
|
|
|
|
QString ret(arg);
|
|
if (hasSpecialChars(ret, iqm)) {
|
|
// The process-level standard quoting allows escaping quotes with backslashes (note
|
|
// that backslashes don't escape themselves, unless they are followed by a quote).
|
|
// Consequently, quotes are escaped and their preceding backslashes are doubled.
|
|
ret.replace(QRegularExpression(QLatin1String("(\\\\*)\"")), QLatin1String("\\1\\1\\\""));
|
|
// Trailing backslashes must be doubled as well, as they are followed by a quote.
|
|
ret.replace(QRegularExpression(QLatin1String("(\\\\+)$")), QLatin1String("\\1\\1"));
|
|
// However, the shell also interprets the command, and no backslash-escaping exists
|
|
// there - a quote always toggles the quoting state, but is nonetheless passed down
|
|
// to the called process verbatim. In the unquoted state, the circumflex escapes
|
|
// meta chars (including itself and quotes), and is removed from the command.
|
|
bool quoted = true;
|
|
for (int i = 0; i < ret.length(); i++) {
|
|
QChar c = ret.unicode()[i];
|
|
if (c.unicode() == '"')
|
|
quoted = !quoted;
|
|
else if (!quoted && isSpecialChar(c.unicode(), ism))
|
|
ret.insert(i++, QLatin1Char('^'));
|
|
}
|
|
if (!quoted)
|
|
ret.append(QLatin1Char('^'));
|
|
ret.append(QLatin1Char('"'));
|
|
ret.prepend(QLatin1Char('"'));
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#if defined(PROEVALUATOR_FULL)
|
|
|
|
# if defined(Q_OS_WIN)
|
|
static QString windowsErrorCode()
|
|
{
|
|
wchar_t *string = nullptr;
|
|
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
|
|
NULL,
|
|
GetLastError(),
|
|
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
|
|
(LPWSTR)&string,
|
|
0,
|
|
NULL);
|
|
QString ret = QString::fromWCharArray(string);
|
|
LocalFree((HLOCAL)string);
|
|
return ret.trimmed();
|
|
}
|
|
# endif
|
|
|
|
bool IoUtils::touchFile(const QString &targetFileName, const QString &referenceFileName, QString *errorString)
|
|
{
|
|
# ifdef Q_OS_UNIX
|
|
struct stat st;
|
|
if (stat(referenceFileName.toLocal8Bit().constData(), &st)) {
|
|
*errorString = fL1S("Cannot stat() reference file %1: %2.").arg(referenceFileName, fL1S(strerror(errno)));
|
|
return false;
|
|
}
|
|
# if defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L
|
|
const struct timespec times[2] = { { 0, UTIME_NOW }, st.st_mtim };
|
|
const bool utimeError = utimensat(AT_FDCWD, targetFileName.toLocal8Bit().constData(), times, 0) < 0;
|
|
# else
|
|
struct utimbuf utb;
|
|
utb.actime = time(0);
|
|
utb.modtime = st.st_mtime;
|
|
const bool utimeError= utime(targetFileName.toLocal8Bit().constData(), &utb) < 0;
|
|
# endif
|
|
if (utimeError) {
|
|
*errorString = fL1S("Cannot touch %1: %2.").arg(targetFileName, fL1S(strerror(errno)));
|
|
return false;
|
|
}
|
|
# else
|
|
HANDLE rHand = CreateFile((wchar_t*)referenceFileName.utf16(),
|
|
GENERIC_READ, FILE_SHARE_READ,
|
|
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
|
|
if (rHand == INVALID_HANDLE_VALUE) {
|
|
*errorString = fL1S("Cannot open reference file %1: %2").arg(referenceFileName, windowsErrorCode());
|
|
return false;
|
|
}
|
|
FILETIME ft;
|
|
GetFileTime(rHand, NULL, NULL, &ft);
|
|
CloseHandle(rHand);
|
|
HANDLE wHand = CreateFile((wchar_t*)targetFileName.utf16(),
|
|
GENERIC_WRITE, FILE_SHARE_READ,
|
|
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
|
|
if (wHand == INVALID_HANDLE_VALUE) {
|
|
*errorString = fL1S("Cannot open %1: %2").arg(targetFileName, windowsErrorCode());
|
|
return false;
|
|
}
|
|
SetFileTime(wHand, NULL, NULL, &ft);
|
|
CloseHandle(wHand);
|
|
# endif
|
|
return true;
|
|
}
|
|
|
|
#if defined(QT_BUILD_QMAKE) && defined(Q_OS_UNIX)
|
|
bool IoUtils::readLinkTarget(const QString &symlinkPath, QString *target)
|
|
{
|
|
const QByteArray localSymlinkPath = QFile::encodeName(symlinkPath);
|
|
# if defined(__GLIBC__) && !defined(PATH_MAX)
|
|
# define PATH_CHUNK_SIZE 256
|
|
char *s = 0;
|
|
int len = -1;
|
|
int size = PATH_CHUNK_SIZE;
|
|
|
|
forever {
|
|
s = (char *)::realloc(s, size);
|
|
len = ::readlink(localSymlinkPath.constData(), s, size);
|
|
if (len < 0) {
|
|
::free(s);
|
|
break;
|
|
}
|
|
if (len < size)
|
|
break;
|
|
size *= 2;
|
|
}
|
|
# else
|
|
char s[PATH_MAX+1];
|
|
int len = readlink(localSymlinkPath.constData(), s, PATH_MAX);
|
|
# endif
|
|
if (len <= 0)
|
|
return false;
|
|
*target = QFile::decodeName(QByteArray(s, len));
|
|
# if defined(__GLIBC__) && !defined(PATH_MAX)
|
|
::free(s);
|
|
# endif
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
#endif // PROEVALUATOR_FULL
|
|
|
|
QT_END_NAMESPACE
|