util.pluginloader: Support for fetching plugins from the data store

diff --git a/util/pluginloader.lua b/util/pluginloader.lua
index 696af34f2ef7404e8ebd93a74508ac1736a8ca6f..cffc4dfc46d458f793a503946fb7e3dd993ab2a0 100644 (file)
--- a/util/pluginloader.lua
+++ b/util/pluginloader.lua
@@ -9,11 +9,19 @@
 
 local plugin_dir = CFG_PLUGINDIR or "./plugins/";
 
-local io_open = io.open;
-local loadstring = loadstring;
+local io_open, os_time = io.open, os.time;
+local loadstring, pairs = loadstring, pairs;
+
+local datamanager = require "util.datamanager";
 
 module "pluginloader"
 
+local function load_from_datastore(name)
+       local content = datamanager.load(name, "*", "plugins");
+       if not content or not content[1] then return nil, "Resource not found"; end
+       return content[1], name;
+end
+
 local function load_file(name)
        local file, err = io_open(plugin_dir..name);
        if not file then return file, err; end
@@ -22,16 +30,36 @@ local function load_file(name)
        return content, name;
 end
 
-function load_resource(plugin, resource)
+function load_resource(plugin, resource, loader)
        if not resource then
                resource = "mod_"..plugin..".lua";
        end
-       local content, err = load_file(plugin.."/"..resource);
-       if not content then content, err = load_file(resource); end
+       loader = loader or load_file;
+
+       local content, err = loader(plugin.."/"..resource);
+       if not content then content, err = loader(resource); end
        -- TODO add support for packed plugins
+       
+       if not content and loader == load_file then
+               return load_resource(plugin, resource, load_from_datastore);
+       end
+       
        return content, err;
 end
 
+function store_resource(plugin, resource, content, metadata)
+       if not resource then
+               resource = "mod_"..plugin..".lua";
+       end
+       local store = { content };
+       if metadata then
+               for k,v in pairs(metadata) do
+                       store[k] = v;
+               end
+       end
+       datamanager.store(plugin.."/"..resource, "*", "plugins", store);
+end
+
 function load_code(plugin, resource)
        local content, err = load_resource(plugin, resource);
        if not content then return content, err; end