Allow stdin for deno bundle (both for the cli and Deno.bundle() API)

[quentinadam]

ESBuild allows to pass the input via stdin (see https://esbuild.github.io/api/#stdin), both from the CLI :

echo 'export * from "./another-file"' | esbuild --bundle --sourcefile=imaginary-file.js --loader=ts --format=cjs

And through the API:

const esbuild = require('esbuild');

async function buildFromStdin() {
  const result = await esbuild.build({
    bundle: true,
    stdin: {
      contents: `import { someFunction } from './utils'; console.log(someFunction());`,
      resolveDir: __dirname, // Resolve modules relative to the current directory
      sourcefile: 'input.js', // Optional: Name for the input in sourcemaps
      loader: 'ts', // Optional: Specify the loader for the input
    },
    outfile: 'output.js',
  });
  console.log(result);
}

buildFromStdin();

This is super handy when bundling a dynamically generated input file (and otherwise requires to first save the file to temporarilly to the disk before bundling).

Is there any plan to enable stdin for deno bundle and Deno.bundle() ?

[BlackAsLight]

For the cli, you can get around this with /dev/stdin on Linux and macOS devices as your input file.

[quentinadam]

That is a neat trick!