RemoteLinux: Add "custom command" deployment step.

It might be useful for developers to run a command before or after
uploading or even have a remote command *be* the "deployment" step.
Also: Stop trying to display the "deployment possible" state in the
widget. It's generally hard to do that correctly and it also interferes
with thread safety.

Change-Id: I28aaf368a645ee14156a165c606dbc17c3063e82
Reviewed-on: http://codereview.qt-project.org/5469
Reviewed-by: Christian Kandeler <christian.kandeler@nokia.com>

1 files changed, 149 insertions, 0 deletions

diff --git a/src/plugins/remotelinux/remotelinuxcustomcommanddeployservice.cpp b/src/plugins/remotelinux/remotelinuxcustomcommanddeployservice.cpp
new file mode 100644
index 0000000000..0bee7249fb
--- /dev/null
+++ b/src/plugins/remotelinux/remotelinuxcustomcommanddeployservice.cpp
@@ -0,0 +1,149 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (info@qt.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 info@qt.nokia.com.
+**
+**************************************************************************/
+#include "remotelinuxcustomcommanddeployservice.h"
+
+#include <utils/qtcassert.h>
+#include <utils/ssh/sshremoteprocessrunner.h>
+
+#include <QtCore/QString>
+
+using namespace Utils;
+
+namespace RemoteLinux {
+namespace Internal {
+namespace {
+enum State { Inactive, Running };
+}
+
+class RemoteLinuxCustomCommandDeployservicePrivate
+{
+public:
+    RemoteLinuxCustomCommandDeployservicePrivate() : state(Inactive) { }
+
+    QString commandLine;
+    State state;
+    SshRemoteProcessRunner::Ptr runner;
+};
+
+} // namespace Internal
+
+using namespace Internal;
+
+
+RemoteLinuxCustomCommandDeployservice::RemoteLinuxCustomCommandDeployservice(QObject *parent)
+    : AbstractRemoteLinuxDeployService(parent), d(new RemoteLinuxCustomCommandDeployservicePrivate)
+{
+}
+
+RemoteLinuxCustomCommandDeployservice::~RemoteLinuxCustomCommandDeployservice()
+{
+    delete d;
+}
+
+void RemoteLinuxCustomCommandDeployservice::setCommandLine(const QString &commandLine)
+{
+    QTC_ASSERT(d->state == Inactive, return);
+
+    d->commandLine = commandLine;
+}
+
+bool RemoteLinuxCustomCommandDeployservice::isDeploymentPossible(QString *whyNot) const
+{
+    QTC_ASSERT(d->state == Inactive, return false);
+
+    if (!AbstractRemoteLinuxDeployService::isDeploymentPossible(whyNot))
+        return false;
+    if (d->commandLine.isEmpty()) {
+        if (whyNot)
+            *whyNot = tr("No command line given.");
+        return false;
+    }
+
+    return true;
+}
+
+void RemoteLinuxCustomCommandDeployservice::doDeploy()
+{
+    QTC_ASSERT(d->state == Inactive, handleDeploymentDone());
+
+    d->runner = SshRemoteProcessRunner::create(connection());
+    connect(d->runner.data(), SIGNAL(processOutputAvailable(QByteArray)),
+        SLOT(handleStdout(QByteArray)));
+    connect(d->runner.data(), SIGNAL(processErrorOutputAvailable(QByteArray)),
+        SLOT(handleStderr(QByteArray)));
+    connect(d->runner.data(), SIGNAL(processClosed(int)), SLOT(handleProcessClosed(int)));
+
+    emit progressMessage(tr("Starting remote command '%1'...").arg(d->commandLine));
+    d->state = Running;
+    d->runner->run(d->commandLine.toUtf8());
+}
+
+void RemoteLinuxCustomCommandDeployservice::stopDeployment()
+{
+    QTC_ASSERT(d->state == Running, return);
+
+    disconnect(d->runner.data(), 0, this, 0);
+    d->runner->process()->closeChannel();
+    d->runner = SshRemoteProcessRunner::Ptr();
+    d->state = Inactive;
+    handleDeploymentDone();
+}
+
+void RemoteLinuxCustomCommandDeployservice::handleStdout(const QByteArray &output)
+{
+    emit stdOutData(QString::fromUtf8(output));
+}
+
+void RemoteLinuxCustomCommandDeployservice::handleStderr(const QByteArray &output)
+{
+    emit stdErrData(QString::fromUtf8(output));
+}
+
+void RemoteLinuxCustomCommandDeployservice::handleProcessClosed(int exitStatus)
+{
+    QTC_ASSERT(d->state == Running, return);
+
+    if (exitStatus == SshRemoteProcess::FailedToStart) {
+        emit errorMessage(tr("Remote process failed to start."));
+    } else if (exitStatus == SshRemoteProcess::KilledBySignal) {
+        emit errorMessage(tr("Remote process was killed by a signal."));
+    } else if (d->runner->process()->exitCode() != 0) {
+        emit errorMessage(tr("Remote process finished with exit code %1.")
+            .arg(d->runner->process()->exitCode()));
+    } else {
+        emit progressMessage(tr("Remote command finished successfully."));
+    }
+
+    stopDeployment();
+}
+
+} // namespace RemoteLinux