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// 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.
//! Shim which is passed to Cargo as "rustdoc" when running the bootstrap.
//!
//! See comments in `src/bootstrap/rustc.rs` for more information.
#![deny(warnings)]
extern crate bootstrap;
use std::env;
use std::process::Command;
use std::path::PathBuf;
fn main() {
let args = env::args_os().skip(1).collect::<Vec<_>>();
let rustdoc = env::var_os("RUSTDOC_REAL").expect("RUSTDOC_REAL was not set");
let libdir = env::var_os("RUSTC_LIBDIR").expect("RUSTC_LIBDIR was not set");
let stage = env::var("RUSTC_STAGE").expect("RUSTC_STAGE was not set");
let sysroot = env::var_os("RUSTC_SYSROOT").expect("RUSTC_SYSROOT was not set");
let mut dylib_path = bootstrap::util::dylib_path();
dylib_path.insert(0, PathBuf::from(libdir));
let mut cmd = Command::new(rustdoc);
cmd.args(&args)
.arg("--cfg")
.arg(format!("stage{}", stage))
.arg("--cfg")
.arg("dox")
.arg("--sysroot")
.arg(sysroot)
.env(bootstrap::util::dylib_path_var(),
env::join_paths(&dylib_path).unwrap());
// Force all crates compiled by this compiler to (a) be unstable and (b)
// allow the `rustc_private` feature to link to other unstable crates
// also in the sysroot.
if env::var_os("RUSTC_FORCE_UNSTABLE").is_some() {
cmd.arg("-Z").arg("force-unstable-if-unmarked");
}
if let Some(linker) = env::var_os("RUSTC_TARGET_LINKER") {
cmd.arg("--linker").arg(linker).arg("-Z").arg("unstable-options");
}
// Bootstrap's Cargo-command builder sets this variable to the current Rust version; let's pick
// it up so we can make rustdoc print this into the docs
if let Some(version) = env::var_os("RUSTDOC_CRATE_VERSION") {
// This "unstable-options" can be removed when `--crate-version` is stabilized
cmd.arg("-Z").arg("unstable-options")
.arg("--crate-version").arg(version);
}
std::process::exit(match cmd.status() {
Ok(s) => s.code().unwrap_or(1),
Err(e) => panic!("\n\nfailed to run {:?}: {}\n\n", cmd, e),
})
}
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