VCS: Speed up

Do not listen on ICore::contextChanged to update actions
(became slow after additional contexts).
git: Make code to find top level faster, avoid
constructing file info lists.
Acked-by: con

src/plugins/git/gitclient.cpp

@@ -153,28 +153,14 @@ GitClient::~GitClient()
 
 const char *GitClient::noColorOption = "--no-color";
 
-QString GitClient::findRepositoryForFile(const QString &fileName)
-{
-    const QString gitDirectory = QLatin1String(kGitDirectoryC);
-    const QFileInfo info(fileName);
-    QDir dir = info.absoluteDir();
-    do {
-        if (dir.entryList(QDir::AllDirs|QDir::Hidden).contains(gitDirectory))
-            return dir.absolutePath();
-    } while (dir.cdUp());
-
-    return QString();
-}
-
 QString GitClient::findRepositoryForDirectory(const QString &dir)
 {
     const QString gitDirectory = QLatin1String(kGitDirectoryC);
     QDir directory(dir);
     do {
-        if (directory.entryList(QDir::AllDirs|QDir::Hidden).contains(gitDirectory))
+        if (QFileInfo(directory, gitDirectory).isDir())
             return directory.absolutePath();
     } while (directory.cdUp());
-
     return QString();
 }
 

src/plugins/git/gitclient.h

@@ -75,7 +75,6 @@ public:
     bool managesDirectory(const QString &) const { return false; }
     QString findTopLevelForDirectory(const QString &) const { return QString(); }
 
-    static QString findRepositoryForFile(const QString &fileName);
     static QString findRepositoryForDirectory(const QString &dir);
 
     void diff(const QString &workingDirectory, const QStringList &diffArgs, const QString &fileName);

src/plugins/vcsbase/vcsbaseplugin.cpp

@@ -173,8 +173,6 @@ StateListener::StateListener(QObject *parent) :
         QObject(parent)
 {
     Core::ICore *core = Core::ICore::instance();
-    connect(core, SIGNAL(contextChanged(Core::IContext*,QList<int>)),
-            this, SLOT(slotStateChanged()));
     connect(core->fileManager(), SIGNAL(currentFileChanged(QString)),
             this, SLOT(slotStateChanged()));