C++ FileName::isEmpty方法代码示例

bool BuildableHelperLibrary::buildHelper(const BuildHelperArguments &arguments,
                                         QString *log, QString *errorMessage)
{
    const QChar newline = QLatin1Char('\n');
    // Setup process
    QProcess proc;
    proc.setEnvironment(arguments.environment.toStringList());
    proc.setWorkingDirectory(arguments.directory);
    proc.setProcessChannelMode(QProcess::MergedChannels);

    log->append(QCoreApplication::translate("ProjectExplorer::BuildableHelperLibrary",
                                          "Building helper \"%1\" in %2\n").arg(arguments.helperName,
                                                                              arguments.directory));
    log->append(newline);

    const FileName makeFullPath = arguments.environment.searchInPath(arguments.makeCommand);
    if (QFileInfo::exists(arguments.directory + QLatin1String("/Makefile"))) {
        if (makeFullPath.isEmpty()) {
            *errorMessage = QCoreApplication::translate("ProjectExplorer::DebuggingHelperLibrary",
                                                       "%1 not found in PATH\n").arg(arguments.makeCommand);
            return false;
        }
        const QString cleanTarget = QLatin1String("distclean");
        log->append(QCoreApplication::translate("ProjectExplorer::BuildableHelperLibrary",
                                                   "Running %1 %2...\n")
                    .arg(makeFullPath.toUserOutput(), cleanTarget));
        if (!runBuildProcess(proc, makeFullPath, QStringList(cleanTarget), 30, true, log, errorMessage))
            return false;
    }
    QStringList qmakeArgs;
    if (!arguments.targetMode.isEmpty())
        qmakeArgs << arguments.targetMode;
    if (!arguments.mkspec.isEmpty())
        qmakeArgs << QLatin1String("-spec") << arguments.mkspec.toUserOutput();
    qmakeArgs << arguments.proFilename;
    qmakeArgs << arguments.qmakeArguments;

    log->append(newline);
    log->append(QCoreApplication::translate("ProjectExplorer::BuildableHelperLibrary",
                                            "Running %1 %2 ...\n").arg(arguments.qmakeCommand.toUserOutput(),
                                                                       qmakeArgs.join(QLatin1Char(' '))));

    if (!runBuildProcess(proc, arguments.qmakeCommand, qmakeArgs, 30, false, log, errorMessage))
        return false;
    log->append(newline);
    if (makeFullPath.isEmpty()) {
        *errorMessage = QCoreApplication::translate("ProjectExplorer::BuildableHelperLibrary",
                                                "%1 not found in PATH\n").arg(arguments.makeCommand);
        return false;
    }
    log->append(QCoreApplication::translate("ProjectExplorer::BuildableHelperLibrary",
                                            "Running %1 %2 ...\n")
                .arg(makeFullPath.toUserOutput(), arguments.makeArguments.join(QLatin1Char(' '))));
    if (!runBuildProcess(proc, makeFullPath, arguments.makeArguments, 120, false, log, errorMessage))
        return false;
    return true;
}

static FileName filePathValue(const FileName &value, const QStringList &candidateFileNames)
{
    if (!value.isEmpty())
        return value;
    const QList<FileName> additionalSearchPaths = sshSettings->searchPathRetriever();
    for (const QString &candidate : candidateFileNames) {
        const FileName filePath = Environment::systemEnvironment()
                .searchInPath(candidate, additionalSearchPaths);
        if (!filePath.isEmpty())
            return filePath;
    }
    return FileName();
}

QString AndroidToolChain::makeCommand(const Environment &env) const
{
    QStringList extraDirectories = AndroidConfigurations::currentConfig().makeExtraSearchDirectories();
    if (HostOsInfo::isWindowsHost()) {
        FileName tmp = env.searchInPath(QLatin1String("ma-make.exe"), extraDirectories);
        if (!tmp.isEmpty())
            return QString();
        tmp = env.searchInPath(QLatin1String("mingw32-make"), extraDirectories);
        return tmp.isEmpty() ? QLatin1String("mingw32-make") : tmp.toString();
    }

    QString make = QLatin1String("make");
    FileName tmp = env.searchInPath(make, extraDirectories);
    return tmp.isEmpty() ? make : tmp.toString();
}

void GoToolChainConfigWidget::handleCompilerCommandChange()
{
    bool haveCompiler = false;
    Abi currentAbi = m_abiWidget->currentAbi();
    bool customAbi = m_abiWidget->isCustomAbi();
    FileName path = m_compilerCommand->fileName();
    QList<Abi> abiList;

    if (!path.isEmpty()) {
        QFileInfo fi(path.toFileInfo());
        haveCompiler = fi.isExecutable() && fi.isFile();
    }
    if (haveCompiler) {
        Environment env = Environment::systemEnvironment();
        GccToolChain::addCommandPathToEnvironment(path, env);
        abiList = GoToolChain::guessGoAbi(path, env.toStringList());
    }
    m_abiWidget->setEnabled(haveCompiler);

    // Find a good ABI for the new compiler:
    Abi newAbi;
    if (customAbi)
        newAbi = currentAbi;
    else if (abiList.contains(currentAbi))
        newAbi = currentAbi;

    m_abiWidget->setAbis(abiList, newAbi);
    emit dirty();
}

///
/// Returns all arguments
/// That is: possbile subpath
/// spec
/// config arguemnts
/// moreArguments
/// user arguments
QString QMakeStep::allArguments(bool shorted)
{
    QmakeBuildConfiguration *bc = qmakeBuildConfiguration();
    QStringList arguments;
    if (bc->subNodeBuild())
        arguments << bc->subNodeBuild()->path().toUserOutput();
    else if (shorted)
        arguments << project()->projectFilePath().fileName();
    else
        arguments << project()->projectFilePath().toUserOutput();

    arguments << QLatin1String("-r");
    bool userProvidedMkspec = false;
    for (QtcProcess::ConstArgIterator ait(m_userArgs); ait.next(); ) {
        if (ait.value() == QLatin1String("-spec")) {
            if (ait.next()) {
                userProvidedMkspec = true;
                break;
            }
        }
    }
    FileName specArg = mkspec();
    if (!userProvidedMkspec && !specArg.isEmpty())
        arguments << QLatin1String("-spec") << specArg.toUserOutput();

    // Find out what flags we pass on to qmake
    arguments << bc->configCommandLineArguments();

    arguments << deducedArguments().toArguments();

    QString args = QtcProcess::joinArgs(arguments);
    // User arguments
    QtcProcess::addArgs(&args, m_userArgs);
    return args;
}

QVariant QtKitInformation::defaultValue(ProjectExplorer::Kit *k) const
{
    Q_UNUSED(k);

    // find "Qt in PATH":
    QList<BaseQtVersion *> versionList = QtVersionManager::unsortedVersions();
    BaseQtVersion *result = findOrDefault(versionList, equal(&BaseQtVersion::autodetectionSource,
                                                             QString::fromLatin1("PATH")));
    if (result)
        return result->uniqueId();

    // Legacy: Check for system qmake path: Remove in 3.5 (or later):
    // This check is expensive as it will potentially run binaries (qmake --version)!
    const FileName qmakePath
            = BuildableHelperLibrary::findSystemQt(Utils::Environment::systemEnvironment());

    if (!qmakePath.isEmpty()) {
        result = findOrDefault(versionList, equal(&BaseQtVersion::qmakeCommand, qmakePath));
        if (result)
            return result->uniqueId();
    }

    // Use *any* desktop Qt:
    result = findOrDefault(versionList, equal(&BaseQtVersion::type,
                                              QString::fromLatin1(QtSupport::Constants::DESKTOPQT)));
    return result ? result->uniqueId() : -1;
}

// Find Qt installation by running qmake
static QString findQtInstallPath(const FileName &qmakePath)
{
    if (qmakePath.isEmpty())
        return QString();
    QProcess proc;
    QStringList args;
    args.append(QLatin1String("-query"));
    args.append(QLatin1String("QT_INSTALL_HEADERS"));
    proc.start(qmakePath.toString(), args);
    if (!proc.waitForStarted()) {
        qWarning("%s: Cannot start '%s': %s", Q_FUNC_INFO, qPrintable(qmakePath.toString()),
           qPrintable(proc.errorString()));
        return QString();
    }
    proc.closeWriteChannel();
    if (!proc.waitForFinished()) {
        SynchronousProcess::stopProcess(proc);
        qWarning("%s: Timeout running '%s'.", Q_FUNC_INFO, qPrintable(qmakePath.toString()));
        return QString();
    }
    if (proc.exitStatus() != QProcess::NormalExit) {
        qWarning("%s: '%s' crashed.", Q_FUNC_INFO, qPrintable(qmakePath.toString()));
        return QString();
    }
    const QByteArray ba = proc.readAllStandardOutput().trimmed();
    QDir dir(QString::fromLocal8Bit(ba));
    if (dir.exists() && dir.cdUp())
        return dir.absolutePath();
    return QString();
}

FileName AndroidConfigurations::openJDKBinPath() const
{
    FileName path = m_config.openJDKLocation;
    if (!path.isEmpty())
        return path.appendPath(QLatin1String("bin"));
    return path;
}

void QmakeKitInformation::setup(Kit *k)
{
    QtSupport::BaseQtVersion *version = QtSupport::QtKitInformation::qtVersion(k);
    if (!version)
        return;

    if (version->type() == "Boot2Qt.QtVersionType") // HACK: Ignore boot2Qt kits!
        return;

    FileName spec = QmakeKitInformation::mkspec(k);
    if (spec.isEmpty())
        spec = version->mkspec();


    ToolChain *tc = ToolChainKitInformation::toolChain(k, ToolChain::Language::Cxx);

    if (!tc || (!tc->suggestedMkspecList().empty() && !tc->suggestedMkspecList().contains(spec))) {
        ToolChain *possibleTc = nullptr;
        foreach (ToolChain *current, ToolChainManager::toolChains()) {
            if (current->language() == ToolChain::Language::Cxx
                    && version->qtAbis().contains(current->targetAbi())) {
                possibleTc = current;
                if (current->suggestedMkspecList().contains(spec))
                    break;
            }
        }
        if (possibleTc)
            ToolChainKitInformation::setToolChain(k, possibleTc);
    }

QString BaseQtVersion::defaultDisplayName(const QString &versionString, const FileName &qmakePath,
                                          bool fromPath)
{
    QString location;
    if (qmakePath.isEmpty()) {
        location = QCoreApplication::translate("QtVersion", "<unknown>");
    } else {
        // Deduce a description from '/foo/qt-folder/[qtbase]/bin/qmake' -> '/foo/qt-folder'.
        // '/usr' indicates System Qt 4.X on Linux.
        QDir dir = qmakePath.toFileInfo().absoluteDir();
        do {
            const QString dirName = dir.dirName();
            if (dirName == QLatin1String("usr")) { // System-installed Qt.
                location = QCoreApplication::translate("QtVersion", "System");
                break;
            }
            location = dirName;
            // Also skip default checkouts named 'qt'. Parent dir might have descriptive name.
            if (dirName.compare(QLatin1String("bin"), Qt::CaseInsensitive)
                && dirName.compare(QLatin1String("qtbase"), Qt::CaseInsensitive)
                && dirName.compare(QLatin1String("qt"), Qt::CaseInsensitive)) {
                break;
            }
        } while (dir.cdUp());
    }

    return fromPath ?
        QCoreApplication::translate("QtVersion", "Qt %1 in PATH (%2)").arg(versionString, location) :
        QCoreApplication::translate("QtVersion", "Qt %1 (%2)").arg(versionString, location);
}

void ProjectTree::updateExternalFileWarning()
{
    Core::IDocument *document = qobject_cast<Core::IDocument *>(sender());
    if (!document || document->filePath().isEmpty())
        return;
    Core::InfoBar *infoBar = document->infoBar();
    Core::Id externalFileId(EXTERNAL_FILE_WARNING);
    if (!document->isModified()) {
        infoBar->removeInfo(externalFileId);
        return;
    }
    if (!infoBar->canInfoBeAdded(externalFileId))
        return;
    const FileName fileName = document->filePath();
    const QList<Project *> projects = SessionManager::projects();
    if (projects.isEmpty())
        return;
    foreach (Project *project, projects) {
        FileName projectDir = project->projectDirectory();
        if (projectDir.isEmpty())
            continue;
        if (fileName.isChildOf(projectDir))
            return;
        // External file. Test if it under the same VCS
        QString topLevel;
        if (Core::VcsManager::findVersionControlForDirectory(projectDir.toString(), &topLevel)
                && fileName.isChildOf(FileName::fromString(topLevel))) {
            return;
        }
    }

QList<AndroidToolChainFactory::AndroidToolChainInformation> AndroidToolChainFactory::toolchainPathsForNdk(const FileName &ndkPath)
{
    QList<AndroidToolChainInformation> result;
    if (ndkPath.isEmpty())
        return result;
    QRegExp versionRegExp(NDKGccVersionRegExp);
    FileName path = ndkPath;
    QDirIterator it(path.appendPath(QLatin1String("toolchains")).toString(),
                    QStringList() << QLatin1String("*"), QDir::Dirs);
    while (it.hasNext()) {
        const QString &fileName = FileName::fromString(it.next()).fileName();
        int idx = versionRegExp.indexIn(fileName);
        if (idx == -1)
            continue;
        for (const ToolChain::Language lang : { ToolChain::Language::Cxx, ToolChain::Language::C }) {
            AndroidToolChainInformation ati;
            ati.language = lang;
            ati.version = fileName.mid(idx + 1);
            QString platform = fileName.left(idx);
            ati.abi = AndroidConfig::abiForToolChainPrefix(platform);
            if (ati.abi.architecture() == Abi::UnknownArchitecture) // e.g. mipsel which is not yet supported
                continue;
            ati.compilerCommand = AndroidConfigurations::currentConfig().gccPath(ati.abi, lang, ati.version);
            result.append(ati);
        }
    }
    return result;
}

FileName SshSettings::askpassFilePath()
{
    FileName candidate;
    candidate = sshSettings->askpassFilePath;
    if (candidate.isEmpty())
        candidate = FileName::fromString(Environment::systemEnvironment().value("SSH_ASKPASS"));
    return filePathValue(candidate, QStringList{"qtc-askpass", "ssh-askpass"});
}

 MemoryMapTestFixture()
 {
     FileName testDir = getTestDataDirectory();
     if (!testDir.isEmpty()) {
         fileName = testDir / "maxdnn-memory-map-test-file";
     }
     length = 16385;
 }

FileName BaseQtVersion::mkspecsPath() const
{
    FileName result = FileName::fromUserInput(qmakeProperty("QT_HOST_DATA"));
    if (result.isEmpty())
        result = FileName::fromUserInput(qmakeProperty("QMAKE_MKSPECS"));
    else
        result.appendPath(QLatin1String("mkspecs"));
    return result;
}