1 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
13 use std::dynamic_lib::DynamicLibrary;
14 use std::io::prelude::*;
15 use std::path::PathBuf;
16 use std::process::{ExitStatus, Command, Child, Output, Stdio};
18 fn add_target_env(cmd: &mut Command, lib_path: &str, aux_path: Option<&str>) {
19 // Need to be sure to put both the lib_path and the aux path in the dylib
20 // search path for the child.
21 let mut path = DynamicLibrary::search_path();
22 if let Some(p) = aux_path {
23 path.insert(0, PathBuf::from(p))
25 path.insert(0, PathBuf::from(lib_path));
27 // Add the new dylib search path var
28 let var = DynamicLibrary::envvar();
29 let newpath = DynamicLibrary::create_path(&path);
30 cmd.env(var, newpath);
33 pub struct Result {pub status: ExitStatus, pub out: String, pub err: String}
35 pub fn run(lib_path: &str,
37 aux_path: Option<&str>,
39 env: Vec<(String, String)> ,
40 input: Option<String>) -> Option<Result> {
42 let mut cmd = Command::new(prog);
44 .stdin(Stdio::piped())
45 .stdout(Stdio::piped())
46 .stderr(Stdio::piped());
47 add_target_env(&mut cmd, lib_path, aux_path);
48 for (key, val) in env {
54 if let Some(input) = input {
55 process.stdin.as_mut().unwrap().write_all(input.as_bytes()).unwrap();
57 let Output { status, stdout, stderr } =
58 process.wait_with_output().unwrap();
62 out: String::from_utf8(stdout).unwrap(),
63 err: String::from_utf8(stderr).unwrap()
70 pub fn run_background(lib_path: &str,
72 aux_path: Option<&str>,
74 env: Vec<(String, String)> ,
75 input: Option<String>) -> Option<Child> {
77 let mut cmd = Command::new(prog);
79 .stdin(Stdio::piped())
80 .stdout(Stdio::piped())
81 .stderr(Stdio::piped());
82 add_target_env(&mut cmd, lib_path, aux_path);
83 for (key, val) in env {
89 if let Some(input) = input {
90 process.stdin.as_mut().unwrap().write_all(input.as_bytes()).unwrap();