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/**
* Copyright 2013 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
module.exports = function(RED) {
"use strict";
var Notify = require("fs.notify");
var fs = require("fs");
var sep = require("path").sep;
function WatchNode(n) {
RED.nodes.createNode(this,n);
this.files = n.files.split(",");
for (var f =0; f < this.files.length; f++) {
this.files[f] = this.files[f].trim();
}
this.p = (this.files.length == 1) ? this.files[0] : JSON.stringify(this.files);
var node = this;
var notifications = new Notify(node.files);
notifications.on('change', function (file, event, path) {
try {
if (fs.statSync(path).isDirectory()) { path = path + sep + file; }
} catch(e) { }
var msg = { payload: path, topic: node.p, file: file };
node.send(msg);
});
notifications.on('error', function (error, path) {
node.warn(error);
});
this.close = function() {
notifications.close();
}
}
RED.nodes.registerType("watch",WatchNode);
}
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