* ffluci/core: fs.lua: add wrapper for mkdir() to allow recursive creation of directory paths; whitespace cleanup

core/src/fs.lua

@@ -79,8 +79,39 @@ dirname = posix.dirname
 -- dir wrapper
 dir = posix.dir
 
--- Alias for posix.mkdir
+-- wrapper for posix.mkdir
-mkdir = posix.mkdir
+function mkdir(path, recursive)
+	if recursive then
+		local base = "."
+
+		if path:sub(1,1) == "/" then
+			base = ""
+			path = path:gsub("^/+","")
+		end
+
+		for elem in path:gmatch("([^/]+)/*") do
+			base = base .. "/" .. elem
+
+			local stat = posix.stat( base )
+
+			if not stat then
+				local stat, errmsg, errno = posix.mkdir( base )
+
+				if type(stat) ~= "number" or stat ~= 0 then
+					return stat, errmsg, errno
+				end
+			else
+				if stat.type ~= "directory" then
+					return nil, base .. ": File exists", 17
+				end
+			end
+		end
+
+		return 0
+	else
+		return posix.mkdir( path )
+	end
+end
 
 -- Alias for posix.rmdir
 rmdir = posix.rmdir