util.events: Add support for event wrappers, functions which can wrap the calling...
[prosody.git] / util / pluginloader.lua
index 9300b98ab0ff9a46805a5c6143694e067a00c8e6..b9b3e207fa685ffbf38dbc4f474567fd7a81f6a8 100644 (file)
@@ -1,7 +1,7 @@
 -- 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.
 --
@@ -14,56 +14,45 @@ for path in (CFG_PLUGINDIR or "./plugins/"):gsub("[/\\]", dir_sep):gmatch("[^"..
        plugin_dir[#plugin_dir + 1] = path;
 end
 
-local io_open, os_time = io.open, os.time;
-local loadstring, pairs = loadstring, pairs;
+local io_open = io.open;
+local envload = require "util.envload".envload;
 
 module "pluginloader"
 
-local function load_file(name)
+function load_file(names)
        local file, err, path;
        for i=1,#plugin_dir do
-               path = plugin_dir[i]..name;
-               file, err = io_open(path);
-               if file then break; end
+               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
-       if not file then return file, err; end
-       local content = file:read("*a");
-       file:close();
-       return content, path;
+       return file, err;
 end
 
-function load_resource(plugin, resource, loader)
-       local path, name = plugin:match("([^/]*)/?(.*)");
-       if name == "" then
-               if not resource then
-                       resource = "mod_"..plugin..".lua";
-               end
-               loader = loader or load_file;
+function load_resource(plugin, resource)
+       resource = resource or "mod_"..plugin..".lua";
 
-               local content, err = loader(plugin.."/"..resource);
-               if not content then content, err = loader(resource); end
-               -- TODO add support for packed plugins
-               
-               return content, err;
-       else
-               if not resource then
-                       resource = "mod_"..name..".lua";
-               end
-               loader = loader or load_file;
+       local names = {
+               "mod_"..plugin..dir_sep..plugin..dir_sep..resource; -- mod_hello/hello/mod_hello.lua
+               "mod_"..plugin..dir_sep..resource;                  -- mod_hello/mod_hello.lua
+               plugin..dir_sep..resource;                          -- hello/mod_hello.lua
+               resource;                                           -- mod_hello.lua
+       };
 
-               local content, err = loader(plugin.."/"..resource);
-               if not content then content, err = loader(path.."/"..resource); end
-               -- TODO add support for packed plugins
-               
-               return content, err;
-       end
+       return load_file(names);
 end
 
-function load_code(plugin, resource)
+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 = loadstring(content, "@"..path);
+       local f, err = envload(content, "@"..path, env);
        if not f then return f, err; end
        return f, path;
 end