83 lines
2.4 KiB
TypeScript
83 lines
2.4 KiB
TypeScript
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import * as plugins from './smartchok.plugins'
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import { Stringmap } from 'lik'
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export type TSmartchokStatus = 'idle' | 'starting' | 'watching'
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export type TFsEvent = 'add' | 'addDir' | 'change' | 'error' | 'unlink' | 'unlinkDir' | 'ready' | 'raw'
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/**
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* Smartchok allows easy wathcing of files
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*/
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export class Smartchok {
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watchStringmap = new Stringmap()
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chokidarOptions: plugins.chokidar.WatchOptions
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status: TSmartchokStatus = 'idle'
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private watcher
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private watchingDeferred = plugins.q.defer<void>() // used to run things when watcher is initialized
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private eventObservablemap = new plugins.lik.Observablemap() // register one observable per event
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/**
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* constructor of class smartchok
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*/
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constructor (watchArrayArg: string[], optionsArg: plugins.chokidar.WatchOptions = {}) {
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this.watchStringmap.addStringArray(watchArrayArg)
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this.chokidarOptions = optionsArg
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}
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/**
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* adds files to the list of watched files
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*/
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add(pathArrayArg: string[]) {
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this.watchStringmap.addStringArray(pathArrayArg)
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}
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/**
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* removes files from the list of watched files
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*/
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remove (pathArg: string) {
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this.watchStringmap.removeString(pathArg)
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}
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/**
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* gets an observable for a certain event
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*/
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getObservableFor (fsEvent: TFsEvent): plugins.q.Promise<plugins.rx.Observable<any>> {
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let done = plugins.q.defer<plugins.rx.Observable<any>>()
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this.watchingDeferred.promise.then(() => {
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let eventObservable = this.eventObservablemap.getObservableForEmitterEvent(this.watcher, fsEvent)
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done.resolve(eventObservable)
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})
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return done.promise
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}
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/**
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* starts the watcher
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* @returns Promise<void>
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*/
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start(): plugins.q.Promise<void> {
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let done = plugins.q.defer<void>()
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this.status = 'starting'
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this.watcher = plugins.chokidar.watch(this.watchStringmap.getStringArray(), this.chokidarOptions)
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this.watcher.on('ready', () => {
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this.status = 'watching'
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this.watchingDeferred.resolve()
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done.resolve()
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})
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return done.promise
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}
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/**
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* stop the watcher process if watching
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*/
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stop() {
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let closeWatcher = () => {
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this.watcher.close()
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}
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if (this.status === 'watching') {
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console.log('closing while watching')
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closeWatcher()
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} else if (this.status === 'starting') {
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this.watchingDeferred.promise.then(() => { closeWatcher() })
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}
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}
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}
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