ProjectExplorer: allow defining a dir filter in TreeScanner

This is going to be used to include hidden files in the result list of
the scanner.

Change-Id: I512465eba4c38c6d26107ae4022319f1c700b60c
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/projectexplorer/projectnodeshelper.h

@@ -14,11 +14,6 @@
 #include <QPromise>
 
 namespace ProjectExplorer {
-
-template<typename Result>
-QList<FileNode *> scanForFiles(QPromise<Result> &promise, const Utils::FilePath &directory,
-                               const std::function<FileNode *(const Utils::FilePath &)> factory);
-
 namespace Internal {
 
 template<typename Result>
@@ -27,6 +22,7 @@ QList<FileNode *> scanForFilesRecursively(
     double progressStart,
     double progressRange,
     const Utils::FilePath &directory,
+    const QDir::Filters &filter,
     const std::function<FileNode *(const Utils::FilePath &)> factory,
     QSet<QString> &visited,
     const QList<Core::IVersionControl *> &versionControls)
@@ -41,8 +37,7 @@ QList<FileNode *> scanForFilesRecursively(
     if (visitedCount == visited.count())
         return result;
 
-    const QFileInfoList entries = baseDir.entryInfoList(QStringList(),
+    const QFileInfoList entries = baseDir.entryInfoList(QStringList(), filter);
-                                                        QDir::AllEntries | QDir::NoDotAndDotDot);
     double progress = 0;
     const double progressIncrement = progressRange / static_cast<double>(entries.count());
     int lastIntProgress = 0;
@@ -59,6 +54,7 @@ QList<FileNode *> scanForFilesRecursively(
                                                       progress,
                                                       progressIncrement,
                                                       entryName,
+                                                      filter,
                                                       factory,
                                                       visited,
                                                       versionControls));
@@ -80,7 +76,10 @@ QList<FileNode *> scanForFilesRecursively(
 } // namespace Internal
 
 template<typename Result>
-QList<FileNode *> scanForFiles(QPromise<Result> &promise, const Utils::FilePath &directory,
+QList<FileNode *> scanForFiles(
+    QPromise<Result> &promise,
+    const Utils::FilePath &directory,
+    const QDir::Filters &filter,
     const std::function<FileNode *(const Utils::FilePath &)> factory)
 {
     QSet<QString> visited;
@@ -89,6 +88,7 @@ QList<FileNode *> scanForFiles(QPromise<Result> &promise, const Utils::FilePath
                                              0.0,
                                              1000000.0,
                                              directory,
+                                             filter,
                                              factory,
                                              visited,
                                              Core::VcsManager::versionControls());

src/plugins/projectexplorer/treescanner.cpp

@@ -43,8 +43,9 @@ bool TreeScanner::asyncScanForFiles(const Utils::FilePath &directory)
         return false;
 
     m_scanFuture = Utils::asyncRun(
-        [directory, filter = m_filter, factory = m_factory] (Promise &promise) {
+        [directory, filter = m_filter, dirFilter = m_dirFilter, factory = m_factory](
-        TreeScanner::scanForFiles(promise, directory, filter, factory);
+            Promise &promise) {
+            TreeScanner::scanForFiles(promise, directory, filter, dirFilter, factory);
         });
     m_futureWatcher.setFuture(m_scanFuture);
 
@@ -57,6 +58,12 @@ void TreeScanner::setFilter(TreeScanner::FileFilter filter)
         m_filter = filter;
 }
 
+void TreeScanner::setDirFilter(QDir::Filters dirFilter)
+{
+    if (isFinished())
+        m_dirFilter = dirFilter;
+}
+
 void TreeScanner::setTypeFactory(TreeScanner::FileTypeFactory factory)
 {
     if (isFinished())
@@ -139,11 +146,15 @@ static std::unique_ptr<FolderNode> createFolderNode(const Utils::FilePath &direc
     return fileSystemNode;
 }
 
-void TreeScanner::scanForFiles(Promise &promise, const Utils::FilePath& directory,
+void TreeScanner::scanForFiles(
-                               const FileFilter &filter, const FileTypeFactory &factory)
+    Promise &promise,
+    const Utils::FilePath &directory,
+    const FileFilter &filter,
+    const QDir::Filters &dirFilter,
+    const FileTypeFactory &factory)
 {
-    QList<FileNode *> nodes = ProjectExplorer::scanForFiles(promise, directory,
+    QList<FileNode *> nodes = ProjectExplorer::scanForFiles(
-                           [&filter, &factory](const Utils::FilePath &fn) -> FileNode * {
+        promise, directory, dirFilter, [&filter, &factory](const Utils::FilePath &fn) -> FileNode * {
             const Utils::MimeType mimeType = Utils::mimeTypeForFile(fn);
 
             // Skip some files during scan.

src/plugins/projectexplorer/treescanner.h

@@ -45,6 +45,9 @@ public:
     // Setup filter for ignored files
     void setFilter(FileFilter filter);
 
+    // Setup dir filters for scanned folders
+    void setDirFilter(QDir::Filters dirFilter);
+
     // Setup factory for file types
     void setTypeFactory(FileTypeFactory factory);
 
@@ -69,11 +72,15 @@ signals:
     void finished();
 
 private:
-    static void scanForFiles(Promise &fi, const Utils::FilePath &directory,
+    static void scanForFiles(Promise &fi,
-                             const FileFilter &filter, const FileTypeFactory &factory);
+        const Utils::FilePath &directory,
+        const FileFilter &filter,
+        const QDir::Filters &dirFilter,
+        const FileTypeFactory &factory);
 
 private:
     FileFilter m_filter;
+    QDir::Filters m_dirFilter = QDir::AllEntries | QDir::NoDotAndDotDot;
     FileTypeFactory m_factory;
 
     FutureWatcher m_futureWatcher;