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// Copyright 2012 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.
use std::os;
use std::run;
use std::str;
use std::io::process::ProcessExit;
#[cfg(target_os = "win32")]
fn target_env(lib_path: &str, prog: &str) -> ~[(~str,~str)] {
let mut env = os::env();
// Make sure we include the aux directory in the path
assert!(prog.ends_with(".exe"));
let aux_path = prog.slice(0u, prog.len() - 4u).to_owned() + ".libaux";
env = env.map(|pair| {
let (k,v) = (*pair).clone();
if k == ~"PATH" { (~"PATH", v + ";" + lib_path + ";" + aux_path) }
else { (k,v) }
});
if prog.ends_with("rustc.exe") {
env.push((~"RUST_THREADS", ~"1"));
}
return env;
}
#[cfg(target_os = "linux")]
#[cfg(target_os = "macos")]
#[cfg(target_os = "freebsd")]
fn target_env(_lib_path: &str, _prog: &str) -> ~[(~str,~str)] {
os::env()
}
pub struct Result {status: ProcessExit, out: ~str, err: ~str}
pub fn run(lib_path: &str,
prog: &str,
args: &[~str],
env: ~[(~str, ~str)],
input: Option<~str>) -> Option<Result> {
let env = env + target_env(lib_path, prog);
let mut opt_process = run::Process::new(prog, args, run::ProcessOptions {
env: Some(env),
dir: None,
in_fd: None,
out_fd: None,
err_fd: None
});
match opt_process {
Some(ref mut process) => {
for input in input.iter() {
process.input().write(input.as_bytes());
}
let run::ProcessOutput { status, output, error } = process.finish_with_output();
Some(Result {
status: status,
out: str::from_utf8_owned(output),
err: str::from_utf8_owned(error)
})
},
None => None
}
}
pub fn run_background(lib_path: &str,
prog: &str,
args: &[~str],
env: ~[(~str, ~str)],
input: Option<~str>) -> Option<run::Process> {
let env = env + target_env(lib_path, prog);
let opt_process = run::Process::new(prog, args, run::ProcessOptions {
env: Some(env),
dir: None,
in_fd: None,
out_fd: None,
err_fd: None
});
match opt_process {
Some(mut process) => {
for input in input.iter() {
process.input().write(input.as_bytes());
}
Some(process)
},
None => None
}
}
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