execa $ doesn't work with stdio: inherit

[jcbhmr]

What version of Bun is running?

1.0.11+f7f6233ea

What platform is your computer?

Linux 5.15.90.1-microsoft-standard-WSL2 x86_64 x86_64

What steps can reproduce the bug?

import { $ } from "execa"
const args = ["hello", "world"]
await $({ stdio: "inherit" })`echo ${args}`

bun index.js

What is the expected behavior?

hello world

What do you see instead?

hello world
1 | export const getStreamContents = async (stream, {init, convertChunk, getSize, truncateChunk, addChunk, getFinalChunk, finalize}, {maxBuffer = Number.POSITIVE_INFINITY} = {}) => {
2 |     if (!isAsyncIterable(stream)) {
3 |             throw new Error('The first argument must be a Readable, a ReadableStream, or an async iterable.');
            ^
error: Command failed: echo hello world
The first argument must be a Readable, a ReadableStream, or an async iterable.
      at /home/jcbhmr/.bun/install/cache/[email protected]/source/contents.js:3:8
      at getStreamContents (/home/jcbhmr/.bun/install/cache/[email protected]/source/contents.js:1:40)
      at getStreamAsString (/home/jcbhmr/.bun/install/cache/[email protected]/source/string.js:4:40)
      at /home/jcbhmr/.bun/install/cache/[email protected]/lib/stream.js:119:23
      at getSpawnedResult (/home/jcbhmr/.bun/install/cache/[email protected]/lib/stream.js:118:32)
      at /home/jcbhmr/.bun/install/cache/[email protected]/index.js:118:93
      at /home/jcbhmr/.bun/install/cache/[email protected]/index.js:117:23
      at onetime (/home/jcbhmr/.bun/install/cache/[email protected]/index.js:18:17)
      at /home/jcbhmr/.bun/install/cache/[email protected]/lib/promise.js:15:34
      at processTicksAndRejections (:61:76)

Additional information

this also doesn't work:

import { $ } from "execa"
const arg = "hello world"
await $({ stdio: "inherit" })`echo ${arg}`

hello world
error: Command failed: echo hello world
The first argument must be a Readable, a ReadableStream, or an async iterable.

but this does work:

import { $ } from "execa"
const args = ["hello", "world"]
const { stdout } = await $`echo ${args}`
console.log(stdout)

hello world

as does this

import { $ } from "execa"
const arg = "hello world"
const { stdout } = await $`echo ${arg}`
console.log(stdout)

hello world

[elie222]

Ran into a similar issue. npx tsx worked. bun didn't. i was also getting silent errors with bun.

[SrBrahma]

execaCommand and execa have the same issue. https://bun.sh/docs/api/spawn can be an alternative in the meantime.

Edit: Tbh, I even preferred the bun's spawn as it's one dep less (two, including @types) to be installed. It could support string as a param instead of an array, like execaCommand does.