b37477c03e
This commit implements the `exec` function proposed in [RFC 1359][rfc] which is a function on the `CommandExt` trait to execute all parts of a `Command::spawn` without the `fork` on Unix. More details on the function itself can be found in the comments in the commit. [rfc]: https://github.com/rust-lang/rfcs/pull/1359 cc #31398
73 lines
2.2 KiB
Rust
73 lines
2.2 KiB
Rust
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
// ignore-windows - this is a unix-specific test
|
|
// ignore-pretty
|
|
|
|
#![feature(process_exec)]
|
|
|
|
use std::env;
|
|
use std::os::unix::process::CommandExt;
|
|
use std::process::Command;
|
|
|
|
fn main() {
|
|
let mut args = env::args();
|
|
let me = args.next().unwrap();
|
|
|
|
if let Some(arg) = args.next() {
|
|
match &arg[..] {
|
|
"test1" => println!("passed"),
|
|
|
|
"exec-test1" => {
|
|
let err = Command::new(&me).arg("test1").exec();
|
|
panic!("failed to spawn: {}", err);
|
|
}
|
|
|
|
"exec-test2" => {
|
|
Command::new("/path/to/nowhere").exec();
|
|
println!("passed");
|
|
}
|
|
|
|
"exec-test3" => {
|
|
Command::new(&me).arg("bad\0").exec();
|
|
println!("passed");
|
|
}
|
|
|
|
"exec-test4" => {
|
|
Command::new(&me).current_dir("/path/to/nowhere").exec();
|
|
println!("passed");
|
|
}
|
|
|
|
_ => panic!("unknown argument: {}", arg),
|
|
}
|
|
return
|
|
}
|
|
|
|
let output = Command::new(&me).arg("exec-test1").output().unwrap();
|
|
assert!(output.status.success());
|
|
assert!(output.stderr.is_empty());
|
|
assert_eq!(output.stdout, b"passed\n");
|
|
|
|
let output = Command::new(&me).arg("exec-test2").output().unwrap();
|
|
assert!(output.status.success());
|
|
assert!(output.stderr.is_empty());
|
|
assert_eq!(output.stdout, b"passed\n");
|
|
|
|
let output = Command::new(&me).arg("exec-test3").output().unwrap();
|
|
assert!(output.status.success());
|
|
assert!(output.stderr.is_empty());
|
|
assert_eq!(output.stdout, b"passed\n");
|
|
|
|
let output = Command::new(&me).arg("exec-test4").output().unwrap();
|
|
assert!(output.status.success());
|
|
assert!(output.stderr.is_empty());
|
|
assert_eq!(output.stdout, b"passed\n");
|
|
}
|