Subversion: Add vcsTopic

This partially addresses QTCREATORBUG-12929 which is about svn commit no
longer showing output which does include the revision number

Change-Id: I149f1fea05a63cc80625ba5e02c10edbce471e1a
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/subversion/subversionclient.cpp

@@ -209,6 +209,25 @@ QStringList SubversionClient::addAuthenticationOptions(const QStringList &args,
     return rc;
 }
 
+QString SubversionClient::synchronousTopic(const QString &repository)
+{
+    QStringList args;
+    args << QLatin1String("info");
+
+    QByteArray stdOut;
+    if (!vcsFullySynchronousExec(repository, args, &stdOut))
+        return QString();
+
+    const QString revisionString = QLatin1String("Revision: ");
+    // stdOut is ASCII only (at least in those areas we care about).
+    QString output = SynchronousProcess::normalizeNewlines(QString::fromLocal8Bit(stdOut));
+    foreach (const QString &line, output.split(QLatin1Char('\n'))) {
+        if (line.startsWith(revisionString))
+            return QString::fromLatin1("r") + line.mid(revisionString.count());
+    }
+    return QString();
+}
+
 void SubversionClient::diff(const QString &workingDir, const QStringList &files,
                            const QStringList &extraOptions)
 {

src/plugins/subversion/subversionclient.h

@@ -81,6 +81,8 @@ public:
                                                 const QString &userName = QString(),
                                                 const QString &password = QString());
 
+    QString synchronousTopic(const QString &repository);
+
 protected:
     Core::Id vcsEditorKind(VcsCommandTag cmd) const;
     VcsBase::VcsBaseEditorParameterWidget *createDiffEditor(const QString &workingDir,

src/plugins/subversion/subversioncontrol.cpp

@@ -36,13 +36,35 @@
 
 #include <QFileInfo>
 
-using namespace Subversion;
-using namespace Subversion::Internal;
+namespace Subversion {
+namespace Internal {
+
+class SubversionTopicCache : public Core::IVersionControl::TopicCache
+{
+public:
+    SubversionTopicCache(SubversionPlugin *plugin) :
+        m_plugin(plugin)
+    { }
+
+protected:
+    QString trackFile(const QString &repository)
+    {
+        return m_plugin->monitorFile(repository);
+    }
+
+    QString refreshTopic(const QString &repository)
+    {
+        return m_plugin->synchronousTopic(repository);
+    }
+
+private:
+    SubversionPlugin *m_plugin;
+};
 
 SubversionControl::SubversionControl(SubversionPlugin *plugin) :
+    Core::IVersionControl(new SubversionTopicCache(plugin)),
     m_plugin(plugin)
-{
-}
+{ }
 
 QString SubversionControl::displayName() const
 {
@@ -153,3 +175,6 @@ void SubversionControl::emitConfigurationChanged()
 {
     emit configurationChanged();
 }
+
+} // namespace Internal
+} // namespace Subversion

src/plugins/subversion/subversionplugin.cpp

@@ -1074,6 +1074,25 @@ SubversionPlugin *SubversionPlugin::instance()
     return m_subversionPluginInstance;
 }
 
+QString SubversionPlugin::monitorFile(const QString &repository) const
+{
+    QTC_ASSERT(!repository.isEmpty(), return QString());
+    QDir repoDir(repository);
+    foreach (const QString &svnDir, m_svnDirectories) {
+        if (repoDir.exists(svnDir)) {
+            QFileInfo fi(repoDir.absoluteFilePath(svnDir + QLatin1String("/wc.db")));
+            if (fi.exists() && fi.isFile())
+                return fi.absoluteFilePath();
+        }
+    }
+    return QString();
+}
+
+QString SubversionPlugin::synchronousTopic(const QString &repository) const
+{
+    return m_client->synchronousTopic(repository);
+}
+
 bool SubversionPlugin::vcsAdd(const QString &workingDir, const QString &rawFileName)
 {
     const QString file = QDir::toNativeSeparators(rawFileName);

src/plugins/subversion/subversionplugin.h

@@ -91,6 +91,9 @@ public:
 
     static SubversionPlugin *instance();
 
+    QString monitorFile(const QString &repository) const;
+    QString synchronousTopic(const QString &repository) const;
+
 public slots:
     void vcsAnnotate(const QString &workingDir, const QString &file,
                      const QString &revision = QString(), int lineNumber = -1);