1
0
mirror of https://github.com/node-red/node-red.git synced 2023-10-10 13:36:53 +02:00
node-red/nodes/core/io/23-watch.js

93 lines
3.2 KiB
JavaScript
Raw Normal View History

2013-09-05 16:02:48 +02:00
/**
* Copyright JS Foundation and other contributors, http://js.foundation
2013-09-05 16:02:48 +02:00
*
* 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.
**/
2014-05-04 00:32:04 +02:00
module.exports = function(RED) {
"use strict";
2014-06-30 21:43:31 +02:00
var Notify = require("fs.notify");
2014-05-04 00:32:04 +02:00
var fs = require("fs");
var sep = require("path").sep;
var path = require("path");
var getAllDirs = function (dir, filelist) {
filelist = filelist || [];
fs.readdirSync(dir).forEach(file => {
if (fs.statSync(path.join(dir, file)).isDirectory() ) {
filelist.push(path.join(dir, file));
getAllDirs(path.join(dir, file), filelist);
}
});
return filelist;
}
2014-05-04 00:32:04 +02:00
function WatchNode(n) {
RED.nodes.createNode(this,n);
this.recursive = n.recursive || false;
this.files = (n.files || "").split(",");
for (var f=0; f < this.files.length; f++) {
2014-05-04 00:32:04 +02:00
this.files[f] = this.files[f].trim();
}
this.p = (this.files.length === 1) ? this.files[0] : JSON.stringify(this.files);
2014-05-04 00:32:04 +02:00
var node = this;
if (node.recursive) {
for (var fi in node.files) {
if (node.files.hasOwnProperty(fi)) {
node.files = node.files.concat(getAllDirs( node.files[fi]));
}
}
}
2014-06-30 21:43:31 +02:00
var notifications = new Notify(node.files);
2014-05-04 00:32:04 +02:00
notifications.on('change', function (file, event, path) {
var stat;
try {
if (fs.statSync(path).isDirectory()) { path = path + sep + file; }
stat = fs.statSync(path);
} catch(e) { }
var type = "none";
var msg = { payload:path, topic:node.p, file:file };
if (stat) {
if (stat.isFile()) { type = "file"; msg.size = stat.size; }
else if (stat.isBlockDevice()) { type = "blockdevice"; }
else if (stat.isCharacterDevice()) { type = "characterdevice"; }
else if (stat.isSocket()) { type = "socket"; }
else if (stat.isFIFO()) { type = "fifo"; }
else if (stat.isDirectory()) {
type = "directory";
if (node.recursive) {
notifications.add([path]);
notifications.add(getAllDirs(path));
}
}
else { type = "n/a"; }
}
msg.type = type;
2014-05-04 00:32:04 +02:00
node.send(msg);
});
notifications.on('error', function (error, path) {
var msg = { payload:path };
node.error(error,msg);
});
2014-05-04 00:32:04 +02:00
this.close = function() {
notifications.close();
}
}
2014-05-04 00:32:04 +02:00
RED.nodes.registerType("watch",WatchNode);
2013-09-05 16:02:48 +02:00
}