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updates to allow dynamic addition of static directories provided by plugins

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This commit is contained in:
Julian Lam
2013-09-13 11:10:17 -04:00
parent ad5af8e123
commit d1c756306a
3 changed files with 77 additions and 12 deletions
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61
src/plugins.js
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@@ -3,9 +3,15 @@ var fs = require('fs'),
RDB = require('./redis.js'),
async = require('async'),
winston = require('winston'),
eventEmitter = require('events').EventEmitter,
plugins = {
libraries: {},
loadedHooks: {},
staticDirs: {},
// Events
readyEvent: new eventEmitter,
init: function() {
if (this.initialized) return;
if (global.env === 'development') winston.info('[plugins] Initializing plugins system');
@@ -50,8 +56,13 @@ var fs = require('fs'),
}
if (global.env === 'development') winston.info('[plugins] Plugins OK');
_self.readyEvent.emit('ready');
});
},
ready: function(callback) {
this.readyEvent.once('ready', callback);
},
initialized: false,
loadPlugin: function(pluginPath, callback) {
var _self = this;
@@ -59,19 +70,48 @@ var fs = require('fs'),
fs.readFile(path.join(pluginPath, 'plugin.json'), function(err, data) {
if (err) return callback(err);
var pluginData = JSON.parse(data);
_self.libraries[pluginData.id] = require(path.join(pluginPath, pluginData.library));
if (pluginData.hooks) {
for(var x=0,numHooks=pluginData.hooks.length;x<numHooks;x++) {
_self.registerHook(pluginData.id, pluginData.hooks[x]);
}
}
if (global.env === 'development') winston.info('[plugins] Loaded plugin: ' + pluginData.id);
var pluginData = JSON.parse(data),
libraryPath, staticDir;
callback();
async.parallel([
function(next) {
if (pluginData.library) {
libraryPath = path.join(pluginPath, pluginData.library);
fs.exists(libraryPath, function(exists) {
if (exists) {
_self.libraries[pluginData.id] = require(libraryPath);
if (pluginData.hooks && Array.isArray(pluginData.hooks) && pluginData.hooks.length > 0) {
async.each(pluginData.hooks, function(hook, next) {
_self.registerHook(pluginData.id, hook, next);
}, next);
}
}
});
} else next();
},
function(next) {
if (pluginData.staticDir) {
staticDir = path.join(pluginPath, pluginData.staticDir);
fs.exists(staticDir, function(exists) {
if (exists) {
_self.staticDirs[pluginData.id] = staticDir;
next();
} else next();
});
} else next();
}
], function(err) {
if (!err) {
if (global.env === 'development') winston.info('[plugins] Loaded plugin: ' + pluginData.id);
callback();
} else callback(new Error('Could not load plugin system'))
});
});
},
registerHook: function(id, data) {
registerHook: function(id, data, callback) {
/*
`data` is an object consisting of (* is required):
`data.hook`*, the name of the NodeBB hook
@@ -89,6 +129,7 @@ var fs = require('fs'),
_self.loadedHooks[data.hook].push([id, data.method, !!data.callbacked, data.priority]);
if (global.env === 'development') winston.info('[plugins] Hook registered: ' + data.hook + ' will call ' + id);
callback();
} else return;
},
fireHook: function(hook, args, callback) {