Ensure script path exists on "New Script"

If the Scripts directory didn't exist, then the script would
be saved in "My Documents" (or some other default), which would mean
it would not be available.  Directory (and any missing parents) are now
created upon New Script if they're not there.

Author: bruderstein

PythonScript/src/PythonScript.cpp

@@ -553,6 +553,46 @@ static void showConsole()
 	}
 }
 
+static void ensurePathExists(const tstring& path)
+{
+	BOOL created = FALSE;
+	tstring createPath(path);
+	if (!::CreateDirectory(createPath.c_str(), NULL))
+	{
+		std::list<tstring> pathsToCreate;
+
+		// Add the deepest directory to the top of the list, so it will be created last
+		pathsToCreate.push_back(createPath);
+
+		do {
+
+			createPath.erase(createPath.find_last_of(_T('\\')));
+			if (!::CreateDirectory(createPath.c_str(), NULL))
+			{
+				pathsToCreate.push_back(createPath);
+			}
+			else
+			{
+				created = TRUE;
+			}
+
+		} while (createPath.find(_T('\\')) != tstring::npos 
+			&& !created);
+		
+		if (created)
+		{
+			for(std::list<tstring>::reverse_iterator iter = pathsToCreate.rbegin(); iter != pathsToCreate.rend(); iter++)
+			{
+				::CreateDirectory(iter->c_str(), NULL);
+			}
+		}
+	}
+	else
+	{
+		created = TRUE;
+	}
+}
+
 static void newScript()
 {
 
@@ -561,6 +601,7 @@ static void newScript()
 
 	ofn.lStructSize = sizeof(OPENFILENAMEA);
 	ofn.hwndOwner = nppData._nppHandle;
+	ensurePathExists(ConfigFile::getInstance()->getUserScriptsDir());
 	std::shared_ptr<char> userScriptsDir = WcharMbcsConverter::tchar2char(ConfigFile::getInstance()->getUserScriptsDir().c_str());
 	ofn.lpstrInitialDir = userScriptsDir.get();
 	//ofn.lpstrFileTitle = "Choose filename for new script";