Add A Progress Bar To Your Pipes
Geoff Flarity
Just a quick post to announce my new Deno module that simplifies attaching a progress bar to your streams/pipes.
Here's a (basic) wget in 13 lines:
import { ProgressBarTransformStream } from "https://deno.land/x/progress_bar_transform_stream@v1.0.0/mod.ts";
const url = Deno.args[0];
const splitUrl = url.split("/");
const fileName = splitUrl[splitUrl.length - 1];
const response = await fetch(url);
const contentLength = parseInt(response.headers.get("content-length")!);
const out = await Deno.open("./" + fileName, { write: true, create: true });
response.body
?.pipeThrough(
new ProgressBarTransformStream({ total: contentLength, title: fileName })
)
.pipeTo(out.writable);Then you run it!
deno run --allow-net --allow-write wget.ts https://github.com/denoland/deno/releases/download/v1.35.3/deno-x86_64-apple-darwin.zipEven compile it!
deno compile --allow-net --allow-write wget.ts
./wget https://github.com/denoland/deno/releases/download/v1.35.3/deno-x86_64-apple-darwin.zipFin