qt5base-lts/qmake/library/qmakeglobals.cpp
Marc Mutz 8d7e913248 qmake: eradicate Q_FOREACH loops [rvalues]
... by replacing them with C++11 range-for loops.

This is the simplest of the patch series: Q_FOREACH took a
copy, so we do, too. Except we don't, since we're just
catching the return value that comes out of the function
(RVO). We can't feed the rvalues into range-for, because
they are non-const and would thus detach.

Change-Id: I5834620bf82f3442da7b2838363d351a0fb960a0
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2016-01-28 20:25:15 +00:00

371 lines
12 KiB
C++

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the qmake application of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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**
** GNU General Public License Usage
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** 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.
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****************************************************************************/
#include "qmakeglobals.h"
#include "qmakeevaluator.h"
#include "ioutils.h"
#include <qbytearray.h>
#include <qdatetime.h>
#include <qdebug.h>
#include <qdir.h>
#include <qfile.h>
#include <qfileinfo.h>
#include <qlist.h>
#include <qregexp.h>
#include <qset.h>
#include <qstack.h>
#include <qstring.h>
#include <qstringlist.h>
#include <qtextstream.h>
#ifdef PROEVALUATOR_THREAD_SAFE
# include <qthreadpool.h>
#endif
#ifdef Q_OS_UNIX
#include <unistd.h>
#include <sys/utsname.h>
#else
#include <windows.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#ifdef Q_OS_WIN32
#define QT_POPEN _popen
#define QT_PCLOSE _pclose
#else
#define QT_POPEN popen
#define QT_PCLOSE pclose
#endif
QT_BEGIN_NAMESPACE
#define fL1S(s) QString::fromLatin1(s)
QMakeGlobals::QMakeGlobals()
{
do_cache = true;
#ifdef PROEVALUATOR_DEBUG
debugLevel = 0;
#endif
#ifdef Q_OS_WIN
dirlist_sep = QLatin1Char(';');
dir_sep = QLatin1Char('\\');
#else
dirlist_sep = QLatin1Char(':');
dir_sep = QLatin1Char('/');
#endif
}
QMakeGlobals::~QMakeGlobals()
{
qDeleteAll(baseEnvs);
}
QString QMakeGlobals::cleanSpec(QMakeCmdLineParserState &state, const QString &spec)
{
QString ret = QDir::cleanPath(spec);
if (ret.contains(QLatin1Char('/'))) {
QString absRet = QDir(state.pwd).absoluteFilePath(ret);
if (QFile::exists(absRet))
ret = QDir::cleanPath(absRet);
}
return ret;
}
QMakeGlobals::ArgumentReturn QMakeGlobals::addCommandLineArguments(
QMakeCmdLineParserState &state, QStringList &args, int *pos)
{
enum { ArgNone, ArgConfig, ArgSpec, ArgXSpec, ArgTmpl, ArgTmplPfx, ArgCache, ArgQtConf } argState = ArgNone;
for (; *pos < args.count(); (*pos)++) {
QString arg = args.at(*pos);
switch (argState) {
case ArgConfig:
if (state.after)
state.postconfigs << arg;
else
state.preconfigs << arg;
break;
case ArgSpec:
qmakespec = args[*pos] = cleanSpec(state, arg);
break;
case ArgXSpec:
xqmakespec = args[*pos] = cleanSpec(state, arg);
break;
case ArgTmpl:
user_template = arg;
break;
case ArgTmplPfx:
user_template_prefix = arg;
break;
case ArgCache:
cachefile = args[*pos] = QDir::cleanPath(QDir(state.pwd).absoluteFilePath(arg));
break;
case ArgQtConf:
qtconf = args[*pos] = QDir::cleanPath(QDir(state.pwd).absoluteFilePath(arg));
break;
default:
if (arg.startsWith(QLatin1Char('-'))) {
if (arg == QLatin1String("-after"))
state.after = true;
else if (arg == QLatin1String("-config"))
argState = ArgConfig;
else if (arg == QLatin1String("-nocache"))
do_cache = false;
else if (arg == QLatin1String("-cache"))
argState = ArgCache;
else if (arg == QLatin1String("-qtconf"))
argState = ArgQtConf;
else if (arg == QLatin1String("-platform") || arg == QLatin1String("-spec"))
argState = ArgSpec;
else if (arg == QLatin1String("-xplatform") || arg == QLatin1String("-xspec"))
argState = ArgXSpec;
else if (arg == QLatin1String("-template") || arg == QLatin1String("-t"))
argState = ArgTmpl;
else if (arg == QLatin1String("-template_prefix") || arg == QLatin1String("-tp"))
argState = ArgTmplPfx;
else if (arg == QLatin1String("-win32"))
dir_sep = QLatin1Char('\\');
else if (arg == QLatin1String("-unix"))
dir_sep = QLatin1Char('/');
else
return ArgumentUnknown;
} else if (arg.contains(QLatin1Char('='))) {
if (state.after)
state.postcmds << arg;
else
state.precmds << arg;
} else {
return ArgumentUnknown;
}
continue;
}
argState = ArgNone;
}
if (argState != ArgNone)
return ArgumentMalformed;
return ArgumentsOk;
}
void QMakeGlobals::commitCommandLineArguments(QMakeCmdLineParserState &state)
{
if (!state.preconfigs.isEmpty())
state.precmds << (fL1S("CONFIG += ") + state.preconfigs.join(QLatin1Char(' ')));
precmds = state.precmds.join(QLatin1Char('\n'));
if (!state.postconfigs.isEmpty())
state.postcmds << (fL1S("CONFIG += ") + state.postconfigs.join(QLatin1Char(' ')));
postcmds = state.postcmds.join(QLatin1Char('\n'));
if (xqmakespec.isEmpty())
xqmakespec = qmakespec;
}
void QMakeGlobals::useEnvironment()
{
if (xqmakespec.isEmpty())
xqmakespec = getEnv(QLatin1String("XQMAKESPEC"));
if (qmakespec.isEmpty()) {
qmakespec = getEnv(QLatin1String("QMAKESPEC"));
if (xqmakespec.isEmpty())
xqmakespec = qmakespec;
}
}
void QMakeGlobals::setCommandLineArguments(const QString &pwd, const QStringList &_args)
{
QStringList args = _args;
QMakeCmdLineParserState state(pwd);
for (int pos = 0; pos < args.size(); pos++)
addCommandLineArguments(state, args, &pos);
commitCommandLineArguments(state);
useEnvironment();
}
void QMakeGlobals::setDirectories(const QString &input_dir, const QString &output_dir)
{
if (input_dir != output_dir && !output_dir.isEmpty()) {
QString srcpath = input_dir;
if (!srcpath.endsWith(QLatin1Char('/')))
srcpath += QLatin1Char('/');
QString dstpath = output_dir;
if (!dstpath.endsWith(QLatin1Char('/')))
dstpath += QLatin1Char('/');
int srcLen = srcpath.length();
int dstLen = dstpath.length();
int lastSl = -1;
while (++lastSl, --srcLen, --dstLen,
srcLen && dstLen && srcpath.at(srcLen) == dstpath.at(dstLen))
if (srcpath.at(srcLen) == QLatin1Char('/'))
lastSl = 0;
source_root = srcpath.left(srcLen + lastSl);
build_root = dstpath.left(dstLen + lastSl);
}
}
QString QMakeGlobals::shadowedPath(const QString &fileName) const
{
if (source_root.isEmpty())
return fileName;
if (fileName.startsWith(source_root)
&& (fileName.length() == source_root.length()
|| fileName.at(source_root.length()) == QLatin1Char('/'))) {
return build_root + fileName.mid(source_root.length());
}
return QString();
}
QStringList QMakeGlobals::splitPathList(const QString &val) const
{
QStringList ret;
if (!val.isEmpty()) {
QDir bdir;
QStringList vals = val.split(dirlist_sep);
ret.reserve(vals.length());
foreach (const QString &it, vals)
ret << QDir::cleanPath(bdir.absoluteFilePath(it));
}
return ret;
}
QString QMakeGlobals::getEnv(const QString &var) const
{
#ifdef PROEVALUATOR_SETENV
return environment.value(var);
#else
return QString::fromLocal8Bit(qgetenv(var.toLocal8Bit().constData()));
#endif
}
QStringList QMakeGlobals::getPathListEnv(const QString &var) const
{
return splitPathList(getEnv(var));
}
QString QMakeGlobals::expandEnvVars(const QString &str) const
{
QString string = str;
int startIndex = 0;
forever {
startIndex = string.indexOf(QLatin1Char('$'), startIndex);
if (startIndex < 0)
break;
if (string.length() < startIndex + 3)
break;
if (string.at(startIndex + 1) != QLatin1Char('(')) {
startIndex++;
continue;
}
int endIndex = string.indexOf(QLatin1Char(')'), startIndex + 2);
if (endIndex < 0)
break;
QString value = getEnv(string.mid(startIndex + 2, endIndex - startIndex - 2));
string.replace(startIndex, endIndex - startIndex + 1, value);
startIndex += value.length();
}
return string;
}
#ifndef QT_BUILD_QMAKE
#ifdef PROEVALUATOR_INIT_PROPS
bool QMakeGlobals::initProperties()
{
QByteArray data;
#ifndef QT_BOOTSTRAPPED
QProcess proc;
proc.start(qmake_abslocation, QStringList() << QLatin1String("-query"));
if (!proc.waitForFinished())
return false;
data = proc.readAll();
#else
if (FILE *proc = QT_POPEN(QString(QMakeInternal::IoUtils::shellQuote(qmake_abslocation)
+ QLatin1String(" -query")).toLocal8Bit(), "r")) {
char buff[1024];
while (!feof(proc))
data.append(buff, int(fread(buff, 1, 1023, proc)));
QT_PCLOSE(proc);
}
#endif
const auto lines = data.split('\n');
for (QByteArray line : lines) {
int off = line.indexOf(':');
if (off < 0) // huh?
continue;
if (line.endsWith('\r'))
line.chop(1);
QString name = QString::fromLatin1(line.left(off));
ProString value = ProString(QDir::fromNativeSeparators(
QString::fromLocal8Bit(line.mid(off + 1))));
properties.insert(ProKey(name), value);
if (name.startsWith(QLatin1String("QT_"))) {
bool plain = !name.contains(QLatin1Char('/'));
if (!plain) {
if (!name.endsWith(QLatin1String("/get")))
continue;
name.chop(4);
}
if (name.startsWith(QLatin1String("QT_INSTALL_"))) {
if (plain) {
properties.insert(ProKey(name + QLatin1String("/raw")), value);
properties.insert(ProKey(name + QLatin1String("/get")), value);
}
properties.insert(ProKey(name + QLatin1String("/src")), value);
if (name == QLatin1String("QT_INSTALL_PREFIX")
|| name == QLatin1String("QT_INSTALL_DATA")
|| name == QLatin1String("QT_INSTALL_BINS")) {
name.replace(3, 7, QLatin1String("HOST"));
if (plain) {
properties.insert(ProKey(name), value);
properties.insert(ProKey(name + QLatin1String("/get")), value);
}
properties.insert(ProKey(name + QLatin1String("/src")), value);
}
} else if (name.startsWith(QLatin1String("QT_HOST_"))) {
if (plain)
properties.insert(ProKey(name + QLatin1String("/get")), value);
properties.insert(ProKey(name + QLatin1String("/src")), value);
}
}
}
return true;
}
#else
void QMakeGlobals::setProperties(const QHash<QString, QString> &props)
{
QHash<QString, QString>::ConstIterator it = props.constBegin(), eit = props.constEnd();
for (; it != eit; ++it)
properties.insert(ProKey(it.key()), ProString(it.value()));
}
#endif
#endif // QT_BUILD_QMAKE
QT_END_NAMESPACE