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

core/src/fs.lua

@@ -12,9 +12,9 @@ Copyright 2008 Steven Barth <steven@midlink.org>
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
-You may obtain a copy of the License at 
+You may obtain a copy of the License at
 
-	http://www.apache.org/licenses/LICENSE-2.0 
+	http://www.apache.org/licenses/LICENSE-2.0
 
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
@@ -36,32 +36,32 @@ function isfile(filename)
 	local fp = io.open(filename, "r")
 	if fp then fp:close() end
 	return fp ~= nil
-end	
+end
 
 -- Returns the content of file
 function readfile(filename)
 	local fp, err = io.open(filename)
-	
+
 	if fp == nil then
 		return nil, err
 	end
-	
+
 	local data = fp:read("*a")
 	fp:close()
-	return data	
+	return data
 end
 
 -- Writes given data to a file
 function writefile(filename, data)
 	local fp, err = io.open(filename, "w")
-	
+
 	if fp == nil then
 		return nil, err
 	end
-	
+
 	fp:write(data)
 	fp:close()
-	
+
 	return true
 end
 
@@ -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
@@ -95,4 +126,4 @@ chmod = posix.chmod
 link = posix.link
 
 -- Alias for posix.unlink
-unlink = posix.unlink
+unlink = posix.unlink