Start on a gerrit plugin as a sub-plugin of git.

- Add a gerrit window that shows a list of changes
  and buttons to display, apply or check out
  a change.
- Uses the new Qt 5 Json API or the utils/json
  classes for Qt 4.

Tested-by: Tobias Hunger <tobias.hunger@nokia.com>
Tested-by: Orgad Shaneh <orgads@gmail.com>

Change-Id: I14c6c2c2de8f95fb785752c7319be8638b386a1e
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>
Reviewed-by: Tobias Hunger <tobias.hunger@nokia.com>

src/plugins/git/gerrit/gerritparameters.cpp

@@ -0,0 +1,144 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+**
+** GNU Lesser General Public License Usage
+**
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this file.
+** Please review the following information to ensure the GNU Lesser General
+** Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**************************************************************************/
+
+#include "gerritparameters.h"
+#include "gerritplugin.h"
+
+#if QT_VERSION >= 0x050000
+#  include <QStandardPaths>
+#else
+#  include <utils/environment.h>
+#endif
+#include <QDebug>
+#include <QFileInfo>
+#include <QSettings>
+
+namespace Gerrit {
+namespace Internal {
+
+static const char settingsGroupC[] = "Gerrit";
+static const char hostKeyC[] = "Host";
+static const char userKeyC[] = "User";
+static const char portKeyC[] = "Port";
+static const char sshKeyC[] = "Ssh";
+static const char httpsKeyC[] = "Https";
+static const char defaultHostC[] = "codereview.qt-project.org";
+static const char defaultSshC[] = "ssh";
+static const char additionalQueriesKeyC[] = "AdditionalQueries";
+
+enum { defaultPort = 29418 };
+
+static inline QString detectSsh()
+{
+    const QByteArray gitSsh = qgetenv("GIT_SSH");
+    if (!gitSsh.isEmpty())
+        return QString::fromLocal8Bit(gitSsh);
+#if QT_VERSION >= 0x050000
+    QString ssh = QStandardPaths::findExecutable(QLatin1String(defaultSshC));
+#else
+    const Utils::Environment env = Utils::Environment::systemEnvironment();
+    QString ssh = env.searchInPath(QLatin1String(defaultSshC));
+#endif
+    if (!ssh.isEmpty())
+        return ssh;
+#ifdef Q_OS_WIN // Windows: Use ssh.exe from git if it cannot be found.
+    const QString git = GerritPlugin::gitBinary();
+    if (!git.isEmpty()) {
+        // Is 'git\cmd' in the path (folder containing .bats)?
+        QString path = QFileInfo(git).absolutePath();
+        if (path.endsWith(QLatin1String("cmd"), Qt::CaseInsensitive))
+            path.replace(path.size() - 3, 3, QLatin1String("bin"));
+        ssh = path + QLatin1Char('/') + QLatin1String(defaultSshC);
+    }
+#endif
+    return ssh;
+}
+
+GerritParameters::GerritParameters()
+    : host(QLatin1String(defaultHostC))
+    , port(defaultPort)
+    , https(true)
+{
+}
+
+QStringList GerritParameters::baseCommandArguments() const
+{
+    QStringList result;
+    result << ssh << QLatin1String("-p") << QString::number(port)
+           << sshHostArgument() << QLatin1String("gerrit");
+    return result;
+}
+
+QString GerritParameters::sshHostArgument() const
+{
+    return user.isEmpty() ? host : (user + QLatin1Char('@') + host);
+}
+
+bool GerritParameters::equals(const GerritParameters &rhs) const
+{
+    return port == rhs.port && host == rhs.host && user == rhs.user
+           && ssh == rhs.ssh && additionalQueries == rhs.additionalQueries
+           && https == rhs.https;
+}
+
+void GerritParameters::toSettings(QSettings *s) const
+{
+    s->beginGroup(QLatin1String(settingsGroupC));
+    s->setValue(QLatin1String(hostKeyC), host);
+    s->setValue(QLatin1String(userKeyC), user);
+    s->setValue(QLatin1String(portKeyC), port);
+    s->setValue(QLatin1String(sshKeyC), ssh);
+    s->setValue(QLatin1String(additionalQueriesKeyC), additionalQueries);
+    s->setValue(QLatin1String(httpsKeyC), https);
+    s->endGroup();
+}
+
+void GerritParameters::fromSettings(const QSettings *s)
+{
+    const QString rootKey = QLatin1String(settingsGroupC) + QLatin1Char('/');
+    host = s->value(rootKey + QLatin1String(hostKeyC), QLatin1String(defaultHostC)).toString();
+    user = s->value(rootKey + QLatin1String(userKeyC), QString()).toString();
+    ssh = s->value(rootKey + QLatin1String(sshKeyC), QString()).toString();
+    port = s->value(rootKey + QLatin1String(portKeyC), QVariant(int(defaultPort))).toInt();
+    additionalQueries = s->value(rootKey + QLatin1String(additionalQueriesKeyC), QString()).toString();
+    https = s->value(rootKey + QLatin1String(httpsKeyC), QVariant(true)).toBool();
+    if (ssh.isEmpty())
+        ssh = detectSsh();
+}
+
+bool GerritParameters::isValid() const
+{
+    return !host.isEmpty() && !user.isEmpty() && !ssh.isEmpty();
+}
+
+} // namespace Internal
+} // namespace Gerrit