kannon/classes/Watcher.js

62 lines
No EOL
2.1 KiB
JavaScript

const path = require('path');
const chokidar = require('chokidar');
const Environment = require('../models/Environment.js');
class Watcher {
constructor() {
this.#initialize();
}
async #initialize() {
if (config?.library === undefined) {
throw new Error('library not defined');
}
if (config?.library?.sources === undefined || config?.library?.sources.length === 0) {
throw new Error('no library sources defined');
}
let initialScan = config?.library?.initialscan?.enabled;
if (initialScan === undefined) {
initialScan = true;
}
let polling = config?.library?.polling;
if (polling === undefined) {
polling = false;
}
for (let index = 0; index < config.library.sources.length; index++) {
const directory = path.resolve(config.library.sources[index]);
let ignoreInitial = !initialScan;
if (ignoreInitial === false) {
let env = new Environment(constants.ENVIRONMENT_LASTSCAN);
await env.find('key');
if (env === undefined) {
env = new Environment(constants.ENVIRONMENT_LASTSCAN, new Date().getTime().toString());
env.save();
}
}
logger.debug('watching directory \'' + directory + '\'...');
this.#handleEvents(chokidar.watch(directory, {
ignoreInitial: ignoreInitial,
usePolling: polling
}));
}
}
#handleEvents(watcher) {
if (watcher === undefined) {
return;
}
watcher.on(constants.FS_EVENT_ADD, (file, stats) => {
queue.add(constants.FS_EVENT_ADD, file, stats);
});
watcher.on(constants.FS_EVENT_UNLINK, (file, stats) => {
queue.add(constants.FS_EVENT_UNLINK, file, stats);
});
watcher.on(constants.FS_EVENT_CHANGE, (file, stats) => {
queue.add(constants.FS_EVENT_CHANGE, file, stats);
});
}
}
module.exports = Watcher;