132 lines
3.6 KiB
TypeScript
132 lines
3.6 KiB
TypeScript
import * as plugins from './smartchok.plugins.js';
|
|
import { Stringmap } from '@push.rocks/lik';
|
|
|
|
export type TSmartchokStatus = 'idle' | 'starting' | 'watching';
|
|
export type TFsEvent =
|
|
| 'add'
|
|
| 'addDir'
|
|
| 'change'
|
|
| 'error'
|
|
| 'unlink'
|
|
| 'unlinkDir'
|
|
| 'ready'
|
|
| 'raw';
|
|
|
|
/**
|
|
* Smartchok allows easy wathcing of files
|
|
*/
|
|
export class Smartchok {
|
|
public watchStringmap = new Stringmap();
|
|
public status: TSmartchokStatus = 'idle';
|
|
private watcher: plugins.watcher;
|
|
private watchingDeferred = plugins.smartpromise.defer<void>(); // used to run things when watcher is initialized
|
|
private eventObservablemap = new plugins.smartrx.Observablemap(); // register one observable per event
|
|
|
|
/**
|
|
* constructor of class smartchok
|
|
*/
|
|
constructor(watchArrayArg: string[]) {
|
|
this.watchStringmap.addStringArray(watchArrayArg);
|
|
}
|
|
|
|
private getGlobBase(globPattern: string) {
|
|
// Characters that mark the beginning of a glob pattern
|
|
const globChars = ['*', '?', '[', ']', '{', '}'];
|
|
|
|
// Find the index of the first glob character
|
|
const firstGlobCharIndex = globPattern.split('').findIndex((char) => globChars.includes(char));
|
|
|
|
// If no glob characters are found, return the entire string
|
|
if (firstGlobCharIndex === -1) {
|
|
return globPattern;
|
|
}
|
|
|
|
// Extract the substring up to the first glob character
|
|
const basePathPortion = globPattern.substring(0, firstGlobCharIndex);
|
|
|
|
// Find the last slash before the glob pattern starts
|
|
const lastSlashIndex = basePathPortion.lastIndexOf('/');
|
|
|
|
// If there is no slash, return the basePathPortion as is
|
|
if (lastSlashIndex === -1) {
|
|
return basePathPortion;
|
|
}
|
|
|
|
// Return the base path up to and including the last slash
|
|
return basePathPortion.substring(0, lastSlashIndex + 1);
|
|
}
|
|
|
|
/**
|
|
* adds files to the list of watched files
|
|
*/
|
|
public add(pathArrayArg: string[]) {
|
|
this.watchStringmap.addStringArray(pathArrayArg);
|
|
}
|
|
|
|
/**
|
|
* removes files from the list of watched files
|
|
*/
|
|
public remove(pathArg: string) {
|
|
this.watchStringmap.removeString(pathArg);
|
|
}
|
|
|
|
/**
|
|
* gets an observable for a certain event
|
|
*/
|
|
public getObservableFor(
|
|
fsEvent: TFsEvent
|
|
): Promise<plugins.smartrx.rxjs.Observable<[string, plugins.fs.Stats]>> {
|
|
const done = plugins.smartpromise.defer<plugins.smartrx.rxjs.Observable<any>>();
|
|
this.watchingDeferred.promise.then(() => {
|
|
const eventObservable = this.eventObservablemap.getSubjectForEmitterEvent(
|
|
this.watcher,
|
|
fsEvent
|
|
);
|
|
done.resolve(eventObservable);
|
|
});
|
|
return done.promise;
|
|
}
|
|
|
|
/**
|
|
* starts the watcher
|
|
* @returns Promise<void>
|
|
*/
|
|
public start(): Promise<void> {
|
|
const done = plugins.smartpromise.defer<void>();
|
|
this.status = 'starting';
|
|
this.watcher = new plugins.watcher(
|
|
this.watchStringmap.getStringArray().map((string) => {
|
|
const result = this.getGlobBase(string);
|
|
console.log(`Watching ${result} for changes`);
|
|
return result;
|
|
}),
|
|
{
|
|
depth: 20,
|
|
recursive: false,
|
|
}
|
|
);
|
|
this.watcher.on('ready', () => {
|
|
this.status = 'watching';
|
|
this.watchingDeferred.resolve();
|
|
done.resolve();
|
|
});
|
|
return done.promise;
|
|
}
|
|
|
|
/**
|
|
* stop the watcher process if watching
|
|
*/
|
|
public async stop() {
|
|
const closeWatcher = async () => {
|
|
await this.watcher.close();
|
|
};
|
|
if (this.status === 'watching') {
|
|
console.log('closing while watching');
|
|
await closeWatcher();
|
|
} else if (this.status === 'starting') {
|
|
await this.watchingDeferred.promise;
|
|
await closeWatcher();
|
|
}
|
|
}
|
|
}
|