1 files changed, 60 insertions, 0 deletions
diff --git a/util/pluginloader.lua b/util/pluginloader.lua
new file mode 100644
index 00000000..c10fdf65
--- /dev/null
+++ b/util/pluginloader.lua
@@ -0,0 +1,60 @@
+-- Prosody IM
+-- Copyright (C) 2008-2010 Matthew Wild
+-- Copyright (C) 2008-2010 Waqas Hussain
+-- 
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
+local dir_sep, path_sep = package.config:match("^(%S+)%s(%S+)");
+local plugin_dir = {};
+for path in (CFG_PLUGINDIR or "./plugins/"):gsub("[/\\]", dir_sep):gmatch("[^"..path_sep.."]+") do
+	path = path..dir_sep; -- add path separator to path end
+	path = path:gsub(dir_sep..dir_sep.."+", dir_sep); -- coalesce multiple separaters
+	plugin_dir[#plugin_dir + 1] = path;
+end
+
+local io_open = io.open;
+local envload = require "util.envload".envload;
+
+module "pluginloader"
+
+function load_file(names)
+	local file, err, path;
+	for i=1,#plugin_dir do
+		for j=1,#names do
+			path = plugin_dir[i]..names[j];
+			file, err = io_open(path);
+			if file then
+				local content = file:read("*a");
+				file:close();
+				return content, path;
+			end
+		end
+	end
+	return file, err;
+end
+
+function load_resource(plugin, resource)
+	resource = resource or "mod_"..plugin..".lua";
+
+	local names = {
+		"mod_"..plugin.."/"..plugin.."/"..resource; -- mod_hello/hello/mod_hello.lua
+		"mod_"..plugin.."/"..resource;              -- mod_hello/mod_hello.lua
+		plugin.."/"..resource;                      -- hello/mod_hello.lua
+		resource;                                   -- mod_hello.lua
+	};
+
+	return load_file(names);
+end
+
+function load_code(plugin, resource, env)
+	local content, err = load_resource(plugin, resource);
+	if not content then return content, err; end
+	local path = err;
+	local f, err = envload(content, "@"..path, env);
+	if not f then return f, err; end
+	return f, path;
+end
+
+return _M;