support browsing directories outside save dir

0012-on.initialize

@@ -1,13 +1,16 @@
 on.initialize = function(arg)
 	if #arg > 0 then
-		Data_dir = arg[1]
+		if is_absolute_path(arg[1]) then
+			Data_dir = arg[1]
+		else
+			Data_dir = App.current_dir..arg[1]
+		end
 	end
-	local repo_path = love.filesystem.getSaveDirectory()..'/'..Data_dir
-	print('reading articles from '..repo_path)
-	if not file_exists(repo_path) then
-		error('no directory '..repo_path..' found. Please store articles to browse there before opening this app.')
+	print('reading articles from '..Data_dir)
+	if not file_exists(Data_dir) then
+		error('no directory '..Data_dir..' found. Please store articles to browse there before opening this app.')
 	end
-	local comment_path = repo_path..'/comments'
+	local comment_path = Data_dir..'/comments'
 	if not file_exists(comment_path) then
 		error('Sorry, I am not permitted to create directories (folders). Please create directory '..comment_path..' for storing comments in.')
 	end
@@ -19,4 +22,4 @@ on.initialize = function(arg)
 	A()
 	Viewport.x, Viewport.y = Viewport_bounds.xmin, Viewport_bounds.ymin
 	B()
-end
+end

0121-full_path

@@ -1,3 +1,3 @@
 full_path = function(id)
-	return App.save_dir..Data_dir..'/'..id
+	return Data_dir..'/'..id
 end

0129-initialize_file_picker

@@ -1,5 +1,5 @@
 initialize_file_picker = function()
-	Files = love.filesystem.getDirectoryItems(Data_dir)
+	Files = App.files(Data_dir)
 	for i=#Files,1,-1 do
 		if not Files[i]:match('%.md$') then
 			table.remove(Files, i)
@@ -16,4 +16,4 @@ initialize_file_picker = function()
 			border={r=0.4, g=0.4, b=0.7}
 		})
 	end
-end
+end

0152-Data_dir

@@ -1 +1 @@
-Data_dir = 'data'
+Data_dir = App.save_dir .. 'data'