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// Copyright 2012-2015 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::env;
use common::Config;
use std::ffi::OsStr;
use std::path::PathBuf;
/// Conversion table from triple OS name to Rust SYSNAME
const OS_TABLE: &'static [(&'static str, &'static str)] = &[
("android", "android"),
("bitrig", "bitrig"),
("darwin", "macos"),
("dragonfly", "dragonfly"),
("freebsd", "freebsd"),
("haiku", "haiku"),
("ios", "ios"),
("linux", "linux"),
("mingw32", "windows"),
("netbsd", "netbsd"),
("openbsd", "openbsd"),
("win32", "windows"),
("windows", "windows"),
("solaris", "solaris"),
("emscripten", "emscripten"),
];
const ARCH_TABLE: &'static [(&'static str, &'static str)] = &[
("aarch64", "aarch64"),
("amd64", "x86_64"),
("arm", "arm"),
("arm64", "aarch64"),
("hexagon", "hexagon"),
("i386", "x86"),
("i586", "x86"),
("i686", "x86"),
("loongarch64", "loongarch64"),
("mips", "mips"),
("msp430", "msp430"),
("nvptx64", "nvptx64"),
("powerpc", "powerpc"),
("powerpc64", "powerpc64"),
("s390x", "s390x"),
("sparc", "sparc"),
("x86_64", "x86_64"),
("xcore", "xcore"),
("asmjs", "asmjs"),
("wasm32", "wasm32"),
];
pub fn matches_os(triple: &str, name: &str) -> bool {
// For the wasm32 bare target we ignore anything also ignored on emscripten
// and then we also recognize `wasm32-bare` as the os for the target
if triple == "wasm32-unknown-unknown" {
return name == "emscripten" || name == "wasm32-bare"
}
for &(triple_os, os) in OS_TABLE {
if triple.contains(triple_os) {
return os == name;
}
}
false
}
pub fn get_arch(triple: &str) -> &str {
for &(triple_arch, arch) in ARCH_TABLE {
if triple.contains(triple_arch) {
return arch;
}
}
triple.split('-').nth(0).unwrap()
}
pub fn get_env(triple: &str) -> Option<&str> {
triple.split('-').nth(3)
}
pub fn get_pointer_width(triple: &str) -> &'static str {
if (triple.contains("64") && !triple.ends_with("gnux32")) || triple.starts_with("s390x") {
"64bit"
} else {
"32bit"
}
}
pub fn make_new_path(path: &str) -> String {
assert!(cfg!(windows));
// Windows just uses PATH as the library search path, so we have to
// maintain the current value while adding our own
match env::var(lib_path_env_var()) {
Ok(curr) => format!("{}{}{}", path, path_div(), curr),
Err(..) => path.to_owned(),
}
}
pub fn lib_path_env_var() -> &'static str {
"PATH"
}
fn path_div() -> &'static str {
";"
}
pub fn logv(config: &Config, s: String) {
debug!("{}", s);
if config.verbose {
println!("{}", s);
}
}
pub trait PathBufExt {
/// Append an extension to the path, even if it already has one.
fn with_extra_extension<S: AsRef<OsStr>>(&self, extension: S) -> PathBuf;
}
impl PathBufExt for PathBuf {
fn with_extra_extension<S: AsRef<OsStr>>(&self, extension: S) -> PathBuf {
if extension.as_ref().is_empty() {
self.clone()
} else {
let mut fname = self.file_name().unwrap().to_os_string();
if !extension.as_ref().to_str().unwrap().starts_with('.') {
fname.push(".");
}
fname.push(extension);
self.with_file_name(fname)
}
}
}
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