mirror of https://github.com/node-red/node-red.git
80 lines
2.7 KiB
JavaScript
80 lines
2.7 KiB
JavaScript
/**
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* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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module.exports = function(RED) {
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"use strict";
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const watch = require('node-watch')
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const fs = require("fs")
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const path = require("path")
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function WatchNode(n) {
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RED.nodes.createNode(this,n);
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this.recursive = n.recursive || false;
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this.files = (n.files || "").split(",");
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for (var f=0; f < this.files.length; f++) {
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this.files[f] = this.files[f].trim();
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}
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this.p = (this.files.length === 1) ? this.files[0] : JSON.stringify(this.files);
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const node = this;
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const watcher = watch(this.files, { recursive: true });
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watcher.on('change', function (event, fpath) {
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const file = path.basename(fpath)
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let stat;
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try {
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stat = fs.statSync(fpath);
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} catch(e) { }
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let type = "none";
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const msg = {
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payload:fpath,
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topic:node.p,
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file:file,
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filename:fpath,
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event: event
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};
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if (stat) {
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if (stat.isFile()) { type = "file"; msg.size = stat.size; }
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else if (stat.isBlockDevice()) { type = "blockdevice"; }
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else if (stat.isCharacterDevice()) { type = "characterdevice"; }
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else if (stat.isSocket()) { type = "socket"; }
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else if (stat.isFIFO()) { type = "fifo"; }
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else if (stat.isDirectory()) {
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type = "directory";
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if (node.recursive) {
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notifications.add([fpath]);
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notifications.add(getAllDirs(fpath));
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}
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}
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else { type = "n/a"; }
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}
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msg.type = type;
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node.send(msg);
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});
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watcher.on('error', function (error) {
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const msg = { payload: "" };
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node.error(error,msg);
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});
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this.close = function() {
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watcher.close();
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}
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}
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RED.nodes.registerType("watch", WatchNode);
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}
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