VCS: Add a way to filter out files/directories that belong to a VCS

Change-Id: I4dcbe6242cfe327e3b72d3dd550309be45e326a9
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/mercurial/mercurialclient.cpp

@@ -33,6 +33,7 @@
 #include <vcsbase/vcsbaseeditorparameterwidget.h>
 #include <utils/synchronousprocess.h>
 #include <utils/fileutils.h>
+#include <utils/hostosinfo.h>
 #include <utils/qtcassert.h>
 
 #include <QDateTime>
@@ -333,6 +334,12 @@ void MercurialClient::revertAll(const QString &workingDir, const QString &revisi
                              QStringList(extraOptions) << QLatin1String("--all"));
 }
 
+bool MercurialClient::isVcsDirectory(const FileName &fileName) const
+{
+    return fileName.toFileInfo().isDir()
+            && fileName.fileName().compare(Constants::MERCURIALREPO, HostOsInfo::fileNameCaseSensitivity());
+}
+
 void MercurialClient::view(const QString &source, const QString &id,
                            const QStringList &extraOptions)
 {

src/plugins/mercurial/mercurialclient.h

@@ -70,6 +70,7 @@ public:
     void revertAll(const QString &workingDir, const QString &revision = QString(),
                    const QStringList &extraOptions = QStringList()) override;
 
+    bool isVcsDirectory(const Utils::FileName &fileName) const;
     QString findTopLevelForFile(const QFileInfo &file) const override;
 
 public slots:

src/plugins/mercurial/mercurialcontrol.cpp

@@ -78,6 +78,11 @@ Core::Id MercurialControl::id() const
     return Core::Id(VcsBase::Constants::VCS_ID_MERCURIAL);
 }
 
+bool MercurialControl::isVcsFileOrDirectory(const Utils::FileName &fileName) const
+{
+    return mercurialClient->isVcsDirectory(fileName);
+}
+
 bool MercurialControl::managesDirectory(const QString &directory, QString *topLevel) const
 {
     QFileInfo dir(directory);

src/plugins/mercurial/mercurialcontrol.h

@@ -47,6 +47,8 @@ public:
 
     QString displayName() const final;
     Core::Id id() const final;
+    bool isVcsFileOrDirectory(const Utils::FileName &fileName) const final;
+
     bool managesDirectory(const QString &filename, QString *topLevel = 0) const final;
     bool managesFile(const QString &workingDirectory, const QString &fileName) const final;
     bool isConfigured() const final;