SVN commit 954165 by wiesel:

Avoid calling external executable for checking wether a file is under version control or not.
Cache the last successful repository root for speeding up deeply nested directories.


 M  +39 -8     git/gitplugin.cpp  
 M  +1 -0      git/gitplugin.h  
 M  +11 -2     mercurial/mercurialplugin.cpp  
 M  +1 -0      mercurial/mercurialplugin.h  


--- trunk/KDE/kdevplatform/plugins/git/gitplugin.cpp #954164:954165
@@ -68,17 +68,48 @@
 
 bool GitPlugin::isValidDirectory(const KUrl & dirPath)
 {
-    KDevelop::VcsJob* job = gitRevParse(dirPath.toLocalFile(), QStringList(QString("--is-inside-work-tree")));
-    if (job)
-    {
+    static const QString gitDir(".git");
+    const QString initialPath(dirPath.toLocalFile(KUrl::RemoveTrailingSlash));
+
+    KUrl possibleRepoRoot = m_lastRepoRoot;
+    if (!m_lastRepoRoot.isValid() || !m_lastRepoRoot.isParentOf(dirPath)) {
+        const QFileInfo finfo(initialPath);
+        QDir dir;
+        if (finfo.isFile()) {
+            dir = finfo.absoluteDir();
+        } else {
+            dir = QDir(initialPath);
+            dir.makeAbsolute();
+        }
+
+        while (!dir.cd(gitDir) && dir.cdUp()) {} // cdUp, until there is a sub-directory called .git
+
+        if (gitDir != dir.dirName()) {  // We didn't find .git, so no need to call git
+            kDebug() << "Dir:" << dirPath << " is not inside work tree of git \"" << initialPath << '"';
+            return false;
+        }
+        dir.cdUp();
+        possibleRepoRoot.setDirectory(dir.absolutePath());
+    }
+
+    // We might have found a valid repository, call git to verify it
+    KDevelop::VcsJob* job = gitRevParse(possibleRepoRoot.toLocalFile(), QStringList(QString("--is-inside-work-tree")));
+
+    if (!job) {
+        kDebug() << "Failed creating job";
+        return false;
+    }
+
         job->exec();
-        if (job->status() == KDevelop::VcsJob::JobSucceeded)
-        {
-            kDebug() << "Dir:" << dirPath << " is inside work tree of git" ;
+    if (job->status() == KDevelop::VcsJob::JobSucceeded) {
+        kDebug() << "Dir:" << dirPath << " is inside work tree of git (" << possibleRepoRoot << ')';
+        m_lastRepoRoot = possibleRepoRoot;
             return true;
+    } else if (m_lastRepoRoot == possibleRepoRoot) {   // Not a repository anymore
+        m_lastRepoRoot = KUrl(); // Restart from scratch
+        return isValidDirectory(dirPath);
         }
-    }
-    kDebug() << "Dir:" << dirPath.toLocalFile() << " is not inside work tree of git" ;
+
     return false;
 }
 
--- trunk/KDE/kdevplatform/plugins/git/gitplugin.h #954164:954165
@@ -123,6 +123,7 @@
     static KDevelop::VcsStatusInfo::State lsTagToState(const char ch);
 
     QList<QStringList> branchesShas;
+    KUrl m_lastRepoRoot;
 };
 
 #endif
--- trunk/KDE/kdevplatform/plugins/mercurial/mercurialplugin.cpp #954164:954165
@@ -77,7 +77,11 @@
 {
     // Mercurial uses the same test, so we don't lose any functionality
     static const QString hgDir(".hg");
-    const QString initialPath(directory.toLocalFile());
+
+    if (m_lastRepoRoot.isParentOf(directory))
+        return true;
+
+    const QString initialPath(directory.toLocalFile(KUrl::RemoveTrailingSlash));
     const QFileInfo finfo(initialPath);
     QDir dir;
     if (finfo.isFile()) {
@@ -89,7 +93,12 @@
 
     while (!dir.cd(hgDir) && dir.cdUp()) {} // cdUp, until there is a sub-directory called .hg
 
-    return hgDir == dir.dirName();
+    if (hgDir != dir.dirName())
+        return false;
+
+    dir.cdUp(); // Leave .hg
+    m_lastRepoRoot.setDirectory(dir.absolutePath());
+    return true;
 }
 
 bool MercurialPlugin::isVersionControlled(const KUrl & url)
--- trunk/KDE/kdevplatform/plugins/mercurial/mercurialplugin.h #954164:954165
@@ -128,6 +128,7 @@
     static KDevelop::VcsStatusInfo::State charToState(const char ch);
 
     QStringList getLsFiles(const QString &directory, const QStringList &args = QStringList());
+    KUrl m_lastRepoRoot;
 };
 
 #endif