gitclient.cpp

    // Figure out the working directory
    const QFileInfo firstFile(files.front());
    const bool isDirectory = firstFile.isDir();
    if (ptrToIsDirectory)
        *ptrToIsDirectory = isDirectory;
    const QString workingDirectory = isDirectory ? firstFile.absoluteFilePath() : firstFile.absolutePath();

    const QString repoDirectory = GitClient::findRepositoryForDirectory(workingDirectory);
    if (repoDirectory.isEmpty()) {
        *errorMessage = msgRepositoryNotFound(workingDirectory);
        return RevertFailed;
    }

    // Check for changes
    QString output;
    switch (gitStatus(repoDirectory, false, &output, errorMessage)) {
    case StatusChanged:
        break;
    case StatusUnchanged:
        return RevertUnchanged;
    case StatusFailed:
        return RevertFailed;
    }
    CommitData data;
    if (!data.parseFilesFromStatus(output)) {
        *errorMessage = msgParseFilesFailed();
        return RevertFailed;
    }

    // If we are looking at files, make them relative to the repository
    // directory to match them in the status output list.
    if (!isDirectory) {
        const QDir repoDir(repoDirectory);
        const QStringList::iterator cend = files.end();
        for (QStringList::iterator it = files.begin(); it != cend; ++it)
            *it = repoDir.relativeFilePath(*it);
    }

    // From the status output, determine all modified [un]staged files.
    const QString modifiedState = QLatin1String("modified");
    const QStringList allStagedFiles = data.stagedFileNames(modifiedState);
    const QStringList allUnstagedFiles = data.unstagedFileNames(modifiedState);
    // Unless a directory was passed, filter all modified files for the
    // argument file list.
    QStringList stagedFiles = allStagedFiles;
    QStringList unstagedFiles = allUnstagedFiles;
    if (!isDirectory) {
        const QSet<QString> filesSet = files.toSet();
        stagedFiles = allStagedFiles.toSet().intersect(filesSet).toList();
        unstagedFiles = allUnstagedFiles.toSet().intersect(filesSet).toList();
    }
    if (Git::Constants::debug)
        qDebug() << Q_FUNC_INFO << data.stagedFiles << data.unstagedFiles << allStagedFiles << allUnstagedFiles << stagedFiles << unstagedFiles;

    if (stagedFiles.empty() && unstagedFiles.empty())
        return RevertUnchanged;

    // Ask to revert (to do: Handle lists with a selection dialog)
    const QMessageBox::StandardButton answer
        = QMessageBox::question(m_core->mainWindow(),
                                tr("Revert"),
                                tr("The file has been changed. Do you want to revert it?"),
                                QMessageBox::Yes|QMessageBox::No,
                                QMessageBox::No);
    if (answer == QMessageBox::No)
        return RevertCanceled;

    // Unstage the staged files
    if (!stagedFiles.empty() && !synchronousReset(repoDirectory, stagedFiles, errorMessage))
        return RevertFailed;
    // Finally revert!
    if (!synchronousCheckout(repoDirectory, stagedFiles + unstagedFiles, errorMessage))
        return RevertFailed;
    return RevertOk;
}

void GitClient::revert(const QStringList &files)
{
    bool isDirectory;
    QString errorMessage;
    switch (revertI(files, &isDirectory, &errorMessage)) {
    case RevertOk:
        m_plugin->gitVersionControl()->emitFilesChanged(files);
        break;
    case RevertCanceled:
        break;
    case RevertUnchanged: {
        const QString msg = (isDirectory || files.size() > 1) ? msgNoChangedFiles() : tr("The file is not modified.");
        VCSBase::VCSBaseOutputWindow::instance()->append(msg);
    }
        break;
    case RevertFailed:
        VCSBase::VCSBaseOutputWindow::instance()->append(errorMessage);
        break;
    }
}

void GitClient::pull(const QString &workingDirectory)
{
    GitCommand *cmd = executeGit(workingDirectory, QStringList(QLatin1String("pull")), 0, true, GitCommand::ReportStderr);
    connectRepositoryChanged(workingDirectory, cmd);
}

void GitClient::push(const QString &workingDirectory)
{
    executeGit(workingDirectory, QStringList(QLatin1String("push")), 0, true, GitCommand::ReportStderr);
}

QString GitClient::msgNoChangedFiles()
{
    return tr("There are no modified files.");
}

void GitClient::stash(const QString &workingDirectory)
{
    // Check for changes and stash
    QString errorMessage;
    switch (gitStatus(workingDirectory, false, 0, &errorMessage)) {
    case  StatusChanged:
        executeGit(workingDirectory, QStringList(QLatin1String("stash")), 0, true);
        break;
    case StatusUnchanged:
        VCSBase::VCSBaseOutputWindow::instance()->append(msgNoChangedFiles());
        break;
    case StatusFailed:
        VCSBase::VCSBaseOutputWindow::instance()->append(errorMessage);
        break;
    }
}

void GitClient::stashPop(const QString &workingDirectory)
{
    QStringList arguments(QLatin1String("stash"));
    arguments << QLatin1String("pop");
    GitCommand *cmd = executeGit(workingDirectory, arguments, 0, true);
    connectRepositoryChanged(workingDirectory, cmd);
}

void GitClient::branchList(const QString &workingDirectory)
{
    QStringList arguments(QLatin1String("branch"));
    arguments << QLatin1String("-r") << QLatin1String(noColorOption);
    executeGit(workingDirectory, arguments, 0, true);
}

void GitClient::stashList(const QString &workingDirectory)
{
    QStringList arguments(QLatin1String("stash"));
    arguments << QLatin1String("list") << QLatin1String(noColorOption);
    executeGit(workingDirectory, arguments, 0, true);
}

QString GitClient::readConfig(const QString &workingDirectory, const QStringList &configVar)
{
    QStringList arguments;
    arguments << QLatin1String("config") << configVar;

    QByteArray outputText;
    if (synchronousGit(workingDirectory, arguments, &outputText, 0, false))
        return QString::fromLocal8Bit(outputText).remove(QLatin1Char('\r'));
    return QString();
}

// Read a single-line config value, return trimmed
QString GitClient::readConfigValue(const QString &workingDirectory, const QString &configVar)
{
    return readConfig(workingDirectory, QStringList(configVar)).remove(QLatin1Char('\n'));
}

GitSettings GitClient::settings() const
{
    return m_settings;
}

void GitClient::setSettings(const GitSettings &s)
{
    if (s != m_settings) {
        m_settings = s;
        if (QSettings *s = m_core->settings())
            m_settings.toSettings(s);
        m_binaryPath = m_settings.gitBinaryPath();
    }
}

void GitClient::connectRepositoryChanged(const QString & repository, GitCommand *cmd)
{
    // Bind command success termination with repository to changed signal
    if (!m_repositoryChangedSignalMapper) {
        m_repositoryChangedSignalMapper = new QSignalMapper(this);
        connect(m_repositoryChangedSignalMapper, SIGNAL(mapped(QString)),
                m_plugin->gitVersionControl(), SIGNAL(repositoryChanged(QString)));
    }
    m_repositoryChangedSignalMapper->setMapping(cmd, repository);
    connect(cmd, SIGNAL(success()), m_repositoryChangedSignalMapper, SLOT(map()),
            Qt::QueuedConnection);
}