1 // Copyright 2016 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.
11 //! Shim which is passed to Cargo as "rustdoc" when running the bootstrap.
13 //! See comments in `src/bootstrap/rustc.rs` for more information.
17 extern crate bootstrap;
20 use std::process::Command;
21 use std::path::PathBuf;
24 let args = env::args_os().skip(1).collect::<Vec<_>>();
25 let rustdoc = env::var_os("RUSTDOC_REAL").expect("RUSTDOC_REAL was not set");
26 let libdir = env::var_os("RUSTC_LIBDIR").expect("RUSTC_LIBDIR was not set");
27 let stage = env::var("RUSTC_STAGE").expect("RUSTC_STAGE was not set");
28 let sysroot = env::var_os("RUSTC_SYSROOT").expect("RUSTC_SYSROOT was not set");
30 let mut dylib_path = bootstrap::util::dylib_path();
31 dylib_path.insert(0, PathBuf::from(libdir));
33 let mut cmd = Command::new(rustdoc);
36 .arg(format!("stage{}", stage))
41 .env(bootstrap::util::dylib_path_var(),
42 env::join_paths(&dylib_path).unwrap());
44 // Force all crates compiled by this compiler to (a) be unstable and (b)
45 // allow the `rustc_private` feature to link to other unstable crates
46 // also in the sysroot.
47 if env::var_os("RUSTC_FORCE_UNSTABLE").is_some() {
48 cmd.arg("-Z").arg("force-unstable-if-unmarked");
50 if let Some(linker) = env::var_os("RUSTC_TARGET_LINKER") {
51 cmd.arg("--linker").arg(linker).arg("-Z").arg("unstable-options");
54 // Bootstrap's Cargo-command builder sets this variable to the current Rust version; let's pick
55 // it up so we can make rustdoc print this into the docs
56 if let Some(version) = env::var_os("RUSTDOC_CRATE_VERSION") {
57 // This "unstable-options" can be removed when `--crate-version` is stabilized
58 cmd.arg("-Z").arg("unstable-options")
59 .arg("--crate-version").arg(version);
61 // While we can assume that `-Z unstable-options` is set, let's also force rustdoc to panic
62 // if pulldown rendering differences are found
63 cmd.arg("--deny-render-differences");
66 std::process::exit(match cmd.status() {
67 Ok(s) => s.code().unwrap_or(1),
68 Err(e) => panic!("\n\nfailed to run {:?}: {}\n\n", cmd, e),