COMMON: Implement FSNode::createDirectoryRecursive()

3 files changed, 32 insertions, 17 deletions

diff --git a/common/file.cpp b/common/file.cpp
index 6228c6640b..12461b7382 100644
--- a/common/file.cpp
+++ b/common/file.cpp
@@ -155,24 +155,10 @@ bool DumpFile::open(const String &filename, bool createPath) {
 	assert(!filename.empty());
 	assert(!_handle);
 
-	if (createPath) {
-		for (uint32 i = 0; i < filename.size(); ++i) {
-			if (filename[i] == '/' || filename[i] == '\\') {
-				Common::String subpath = filename;
-				subpath.erase(i);
-				if (subpath.empty()) continue;
-				AbstractFSNode *node = g_system->getFilesystemFactory()->makeFileNodePath(subpath);
-				if (node->exists()) {
-					delete node;
-					continue;
-				}
-				if (!node->createDirectory()) warning("DumpFile: unable to create directories from path prefix");
-				delete node;
-			}
-		}
-	}
-
 	FSNode node(filename);
+	if (createPath)
+		node.getParent().createDirectoryRecursive();
+
 	return open(node);
 }
 
diff --git a/common/fs.cpp b/common/fs.cpp
index d27de48370..2ba64099b4 100644
--- a/common/fs.cpp
+++ b/common/fs.cpp
@@ -168,6 +168,27 @@ bool FSNode::createDirectory() const {
 	return _realNode->createDirectory();
 }
 
+bool FSNode::createDirectoryRecursive() const {
+	if (_realNode == nullptr)
+		return false;
+
+	if (_realNode->exists()) {
+		if (!_realNode->isDirectory()) {
+			warning("FSNode::createDirectoryRecursive: '%s' is a file", _realNode->getName().c_str());
+			return false;
+		} else {
+			return true;
+		}
+	}
+
+	FSNode parent = getParent();
+	assert(parent.getPath() != _realNode->getPath());
+	if (!parent.createDirectoryRecursive())
+		return false;
+
+	return _realNode->createDirectory();
+}
+
 FSDirectory::FSDirectory(const FSNode &node, int depth, bool flat)
   : _node(node), _cached(false), _depth(depth), _flat(flat) {
 }
diff --git a/common/fs.h b/common/fs.h
index 7041428fc8..e8c23f8486 100644
--- a/common/fs.h
+++ b/common/fs.h
@@ -239,6 +239,14 @@ public:
 	 * @return true if the directory was created, false otherwise.
 	 */
 	bool createDirectory() const;
+
+	/**
+	 * Creates a directory referred by this node. The parent directory
+	 * will also be created if it doesn't exist.
+	 *
+	 * @return true if the directory was created, false otherwise.
+	 */
+	bool createDirectoryRecursive() const;
 };
 
 /**