prosody
d9302be05f86
util/pluginloader.lua

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util/pluginloader.lua @ 2276:d9302be05f86

util.pluginloader: Support for fetching plugins from the data store
author Matthew Wild <mwild1@gmail.com>
date Wed, 02 Dec 2009 18:05:03 +0000
parent 1522:569d58d21612
child 2325:265441f2ad48
comparison
equal deleted inserted replaced
2275:dd344b94d088 2276:d9302be05f86
7 -- 7 --
8 8
9 9
10 local plugin_dir = CFG_PLUGINDIR or "./plugins/"; 10 local plugin_dir = CFG_PLUGINDIR or "./plugins/";
11 11
12 local io_open = io.open; 12 local io_open, os_time = io.open, os.time;
13 local loadstring = loadstring; 13 local loadstring, pairs = loadstring, pairs;
14
15 local datamanager = require "util.datamanager";
14 16
15 module "pluginloader" 17 module "pluginloader"
18
19 local function load_from_datastore(name)
20 local content = datamanager.load(name, "*", "plugins");
21 if not content or not content[1] then return nil, "Resource not found"; end
22 return content[1], name;
23 end
16 24
17 local function load_file(name) 25 local function load_file(name)
18 local file, err = io_open(plugin_dir..name); 26 local file, err = io_open(plugin_dir..name);
19 if not file then return file, err; end 27 if not file then return file, err; end
20 local content = file:read("*a"); 28 local content = file:read("*a");
21 file:close(); 29 file:close();
22 return content, name; 30 return content, name;
23 end 31 end
24 32
25 function load_resource(plugin, resource) 33 function load_resource(plugin, resource, loader)
26 if not resource then 34 if not resource then
27 resource = "mod_"..plugin..".lua"; 35 resource = "mod_"..plugin..".lua";
28 end 36 end
29 local content, err = load_file(plugin.."/"..resource); 37 loader = loader or load_file;
30 if not content then content, err = load_file(resource); end 38
39 local content, err = loader(plugin.."/"..resource);
40 if not content then content, err = loader(resource); end
31 -- TODO add support for packed plugins 41 -- TODO add support for packed plugins
42
43 if not content and loader == load_file then
44 return load_resource(plugin, resource, load_from_datastore);
45 end
46
32 return content, err; 47 return content, err;
48 end
49
50 function store_resource(plugin, resource, content, metadata)
51 if not resource then
52 resource = "mod_"..plugin..".lua";
53 end
54 local store = { content };
55 if metadata then
56 for k,v in pairs(metadata) do
57 store[k] = v;
58 end
59 end
60 datamanager.store(plugin.."/"..resource, "*", "plugins", store);
33 end 61 end
34 62
35 function load_code(plugin, resource) 63 function load_code(plugin, resource)
36 local content, err = load_resource(plugin, resource); 64 local content, err = load_resource(plugin, resource);
37 if not content then return content, err; end 65 if not content then return content, err; end