fix: allow fine tuning of chokidar to prevent ENOSPC errors (fuse-box#1384)

* fix: allow fine tuning of chokidar to prevent ENOSPC errors

* fix: documentation updated for chokidarPaths

Author: Josh Pike

docs/development/watching.md

@@ -59,3 +59,9 @@ To solve some issues with running on docker container providers set this:
 ```ts
 fuse.run({ chokidar: { awaitWriteFinish: true } });
 ```
+
+This will allow you to stop the watcher from looking in folders like node_modules:
+
+```ts
+fuse.run({ chokidarPaths: ['path'] );
+```

src/core/BundleProducer.ts

@@ -30,14 +30,16 @@ export class BundleProducer {
 	public entryPackageFile: string;
 	private injectedCode = new Map<string, string>();
 	private chokidarOptions: any;
+	private chokidarPaths: any;
 	private warnings = new Map<string, string[]>();
 	constructor(public fuse: FuseBox) {
 		this.runner = new BundleRunner(this.fuse);
 	}
 
-	public run(opts: { chokidar?: any; runType?: string }): Promise<BundleProducer> {
+	public run(opts: { chokidar?: any; chokidarPaths?: any; runType?: string }): Promise<BundleProducer> {
 		if (opts) {
 			this.chokidarOptions = opts.chokidar;
+			this.chokidarPaths = opts.chokidarPaths;
 		}
 
 		/** Collect information about watchers and start watching */
@@ -190,7 +192,7 @@ export class BundleProducer {
 
 		let ready = false;
 		chokidar
-			.watch(this.fuse.context.homeDir, this.chokidarOptions || {})
+			.watch(this.chokidarPaths || this.fuse.context.homeDir, this.chokidarOptions || {})
 			.on("all", (event, fp) => {
 				if (ready) {
 					this.onChanges(settings, fp);