SSH: Add ability to create symbolic links on remote host.

Change-Id: I6fda991c342acb2b64fe1e0078e9df43590119c6
Reviewed-on: http://codereview.qt.nokia.com/1531
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Christian Kandeler <christian.kandeler@nokia.com>

src/libs/utils/ssh/sftpchannel.cpp

@@ -162,6 +162,12 @@ SftpJobId SftpChannel::renameFileOrDirectory(const QString &oldPath,
         new Internal::SftpRename(++d->m_nextJobId, oldPath, newPath)));
 }
 
+SftpJobId SftpChannel::createLink(const QString &filePath, const QString &target)
+{
+    return d->createJob(Internal::SftpCreateLink::Ptr(
+        new Internal::SftpCreateLink(++d->m_nextJobId, filePath, target)));
+}
+
 SftpJobId SftpChannel::createFile(const QString &path, SftpOverwriteMode mode)
 {
     return d->createJob(Internal::SftpCreateFile::Ptr(
@@ -451,6 +457,7 @@ void SftpChannelPrivate::handleStatus()
     case AbstractSftpOperation::Rm:
     case AbstractSftpOperation::Rename:
     case AbstractSftpOperation::CreateFile:
+    case AbstractSftpOperation::CreateLink:
         handleStatusGeneric(it, response);
         break;
     }

src/libs/utils/ssh/sftpchannel.h

@@ -73,6 +73,7 @@ public:
     SftpJobId renameFileOrDirectory(const QString &oldPath,
         const QString &newPath);
     SftpJobId createFile(const QString &filePath, SftpOverwriteMode mode);
+    SftpJobId createLink(const QString &filePath, const QString &target);
     SftpJobId uploadFile(const QString &localFilePath,
         const QString &remoteFilePath, SftpOverwriteMode mode);
     SftpJobId downloadFile(const QString &remoteFilePath,

src/libs/utils/ssh/sftpoperation.cpp

@@ -90,6 +90,17 @@ SftpOutgoingPacket &SftpRename::initialPacket(SftpOutgoingPacket &packet)
 }
 
 
+SftpCreateLink::SftpCreateLink(SftpJobId jobId, const QString &filePath, const QString &target)
+    : AbstractSftpOperation(jobId), filePath(filePath), target(target)
+{
+}
+
+SftpOutgoingPacket &SftpCreateLink::initialPacket(SftpOutgoingPacket &packet)
+{
+    return packet.generateCreateLink(filePath, target, jobId);
+}
+
+
 AbstractSftpOperationWithHandle::AbstractSftpOperationWithHandle(SftpJobId jobId,
     const QString &remotePath)
     : AbstractSftpOperation(jobId),

src/libs/utils/ssh/sftpoperation_p.h

@@ -53,7 +53,7 @@ struct AbstractSftpOperation
 {
     typedef QSharedPointer<AbstractSftpOperation> Ptr;
     enum Type {
-        ListDir, MakeDir, RmDir, Rm, Rename, CreateFile, Download, UploadFile
+        ListDir, MakeDir, RmDir, Rm, Rename, CreateLink, CreateFile, Download, UploadFile
     };
 
     AbstractSftpOperation(SftpJobId jobId);
@@ -117,6 +117,18 @@ struct SftpRename : public AbstractSftpOperation
     const QString newPath;
 };
 
+struct SftpCreateLink : public AbstractSftpOperation
+{
+    typedef QSharedPointer<SftpCreateLink> Ptr;
+
+    SftpCreateLink(SftpJobId jobId, const QString &filePath, const QString &target);
+    virtual Type type() const { return CreateLink; }
+    virtual SftpOutgoingPacket &initialPacket(SftpOutgoingPacket &packet);
+
+    const QString filePath;
+    const QString target;
+};
+
 
 struct AbstractSftpOperationWithHandle : public AbstractSftpOperation
 {

src/libs/utils/ssh/sftpoutgoingpacket.cpp

@@ -143,6 +143,12 @@ SftpOutgoingPacket &SftpOutgoingPacket::generateWriteFile(const QByteArray &hand
         .appendInt64(offset).appendString(data).finalize();
 }
 
+SftpOutgoingPacket &SftpOutgoingPacket::generateCreateLink(const QString &filePath,
+    const QString &target, quint32 requestId)
+{
+    return init(SSH_FXP_SYMLINK, requestId).appendString(filePath).appendString(target).finalize();
+}
+
 SftpOutgoingPacket &SftpOutgoingPacket::generateOpenFile(const QString &path,
     OpenType openType, SftpOverwriteMode mode, const QList<quint32> &attributes, quint32 requestId)
 {

src/libs/utils/ssh/sftpoutgoingpacket_p.h

@@ -64,6 +64,8 @@ public:
         quint32 requestId);
     SftpOutgoingPacket &generateWriteFile(const QByteArray &handle,
         quint64 offset, const QByteArray &data, quint32 requestId);
+    SftpOutgoingPacket &generateCreateLink(const QString &filePath, const QString &target,
+        quint32 requestId);
 
     static const quint32 DefaultPermissions;