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Merge pull request #563 from jbcrail/fix-printenv

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Fix printenv.
This commit is contained in:
Michael Gehring 2015-05-03 11:49:13 +02:00
commit 88ab6cfff7
1 changed files with 10 additions and 13 deletions
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23
src/printenv/printenv.rs
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@ -1,5 +1,5 @@
#![crate_name = "printenv"] #![crate_name = "printenv"]
#![feature(collections, core, old_io, os, rustc_private)] #![feature(rustc_private)]
/* /*
* This file is part of the uutils coreutils package. * This file is part of the uutils coreutils package.
@ -15,8 +15,8 @@
extern crate getopts; extern crate getopts;
extern crate libc; extern crate libc;
use std::os; use std::env;
use std::old_io::print; use std::io::Write;
#[path = "../common/util.rs"] #[path = "../common/util.rs"]
#[macro_use] #[macro_use]
@ -31,7 +31,7 @@ pub fn uumain(args: Vec<String>) -> i32 {
getopts::optflag("h", "help", "display this help and exit"), getopts::optflag("h", "help", "display this help and exit"),
getopts::optflag("V", "version", "output version information and exit"), getopts::optflag("V", "version", "output version information and exit"),
]; ];
let matches = match getopts::getopts(args.tail(), &opts) { let matches = match getopts::getopts(&args[1..], &opts) {
Ok(m) => m, Ok(m) => m,
Err(f) => { Err(f) => {
crash!(1, "Invalid options\n{}", f) crash!(1, "Invalid options\n{}", f)
@ -43,7 +43,7 @@ pub fn uumain(args: Vec<String>) -> i32 {
println!("Usage:"); println!("Usage:");
println!(" {0} [VARIABLE]... [OPTION]...", program); println!(" {0} [VARIABLE]... [OPTION]...", program);
println!(""); println!("");
print(getopts::usage("Prints the given environment VARIABLE(s), otherwise prints them all.", &opts).as_slice()); print!("{}", getopts::usage("Prints the given environment VARIABLE(s), otherwise prints them all.", &opts));
return 0; return 0;
} }
if matches.opt_present("version") { if matches.opt_present("version") {
@ -62,19 +62,16 @@ pub fn uumain(args: Vec<String>) -> i32 {
pub fn exec(args: Vec<String>, separator: &str) { pub fn exec(args: Vec<String>, separator: &str) {
if args.is_empty() { if args.is_empty() {
let vars = os::env(); for (env_var, value) in env::vars() {
for (env_var, value) in vars.into_iter() { print!("{}={}{}", env_var, value, separator);
print!("{0}={1}", env_var, value);
print(separator);
} }
return; return;
} }
for env_var in args.iter() { for env_var in args.iter() {
match os::getenv(env_var.as_slice()) { match env::var(env_var) {
Some(var) => { Ok(var) => {
print(var.as_slice()); print!("{}{}", var, separator);
print(separator);
} }
_ => () _ => ()
} }