World process library
sausage-spawn starts WASI components through sausage:process/host@0.1.0.
It uses wit-bindgen 0.46.0 and the canonical host/wit/process.wit.
It adds no host interface.
use sausage_spawn::Command;
let status = Command::new("printenv").arg("FOO").env("FOO", "1").status()?;
assert_eq!(status, 0);
# Ok::<(), std::io::Error>(())
A command inherits the environment, cwd, and all three streams.
Stdio::Pipe exposes the generated WASI stream resource on Child.
Stdio::Null discards output or supplies EOF.
Drop piped stdin to supply EOF.
Drain both output pipes before wait to prevent a bounded-pipe deadlock.
try_wait returns the numeric status when the child finishes.
kill stops every process in the child's group through the process interface.
Use Command::new_group before spawn when the caller must survive a child kill.
timeout uses a separate child group.
Drop does not kill the child.
Run nix develop -c nu userland/spawn/check-imports.nu to inspect the release components.
The script keeps the complete WIT output and checks each import.