Simplify tryGetHome and remove unused (now) streams.ts

src/manager.ts

@@ -13,11 +13,9 @@ import type { Navigation } from './webviewMessages';
 
 async function tryGetHome(ssh: Client): Promise<string | null> {
   const exec = await toPromise<ClientChannel>(cb => ssh.exec('echo Home: ~', cb));
-  const { MemoryDuplex } = await import('./streams');
-  const stdout = new MemoryDuplex();
-  exec.stdout.pipe(stdout);
+  let home = '';
+  exec.stdout.on('data', (chunk: any) => home += chunk);
   await toPromise(cb => exec.on('close', cb));
-  const home = stdout.read().toString();
   if (!home) return null;
   const mat = home.match(/^Home: (.*?)\r?\n?$/);
   if (!mat) return null;

src/streams.ts

@@ -1,48 +0,0 @@
-
-import { Duplex, Writable } from 'stream';
-
-export class MemoryDuplex extends Duplex {
-  protected buffer = Buffer.alloc(this.size);
-  protected buffered = 0;
-  protected doPush = false;
-  constructor(public readonly size: number = 4092) {
-    super();
-  }
-  // tslint:disable-next-line:function-name
-  public _write(chunk: any, encoding: string, callback: (err?: Error) => void) {
-    const buffer = chunk instanceof Buffer ? chunk : Buffer.from(chunk.toString(), encoding as BufferEncoding);
-    const end = this.buffered + buffer.length;
-    if (end > this.size) {
-      return callback(new Error('Buffer overflow'));
-    }
-    this.buffered += buffer.copy(this.buffer, this.buffered, 0);
-    if (this.doPush) this._read();
-    callback();
-  }
-  // tslint:disable-next-line:function-name
-  public _read() {
-    const slice = this.buffer.slice(0, this.buffered);
-    this.buffered = 0;
-    this.buffer = Buffer.alloc(this.size);
-    this.doPush = this.push(slice);
-  }
-  public bytesBuffered() {
-    return this.buffered;
-  }
-}
-
-export class WritableFunctionStream extends Writable {
-  constructor(protected func: (data: Buffer) => void | Promise<void>) {
-    super();
-  }
-  // tslint:disable-next-line:function-name
-  public async _write(chunk: any, encoding: string, callback: (err?: Error) => void) {
-    const buffer = chunk instanceof Buffer ? chunk : Buffer.from(chunk.toString(), encoding as BufferEncoding);
-    try {
-      await this.func(buffer);
-      callback();
-    } catch (e) {
-      callback(e);
-    }
-  }
-}