Auto merge of #95253 - jyn514:cargo-run, r=Mark-Simulacrum

Make it possible to run `cargo test` for bootstrap

Note that this only runs bootstrap's self-tests, not compiler or library tests.

Helps with https://github.com/rust-lang/rust/issues/94829.
This commit is contained in:
bors 2022-04-10 12:30:26 +00:00
commit 32c2630262
3 changed files with 3 additions and 10 deletions

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@ -8,12 +8,9 @@ fn configure(cmd: &str, host: &[&str], target: &[&str]) -> Config {
config.save_toolstates = None;
config.dry_run = true;
config.ninja_in_file = false;
config.out = PathBuf::from(env::var_os("BOOTSTRAP_OUTPUT_DIRECTORY").unwrap());
config.initial_rustc = PathBuf::from(env::var_os("RUSTC").unwrap());
config.initial_cargo = PathBuf::from(env::var_os("BOOTSTRAP_INITIAL_CARGO").unwrap());
// try to avoid spurious failures in dist where we create/delete each others file
let dir = config
.out
// HACK: rather than pull in `tempdir`, use the one that cargo has conveniently created for us
let dir = Path::new(env!("OUT_DIR"))
.join("tmp-rustbuild-tests")
.join(&thread::current().name().unwrap_or("unknown").replace(":", "-"));
t!(fs::create_dir_all(&dir));

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@ -454,7 +454,7 @@ pub fn new(config: Config) -> Build {
.map(PathBuf::from)
.unwrap_or_else(|_| src.join("target"));
let bootstrap_out = workspace_target_dir.join("debug");
if !bootstrap_out.join("rustc").exists() {
if !bootstrap_out.join("rustc").exists() && !cfg!(test) {
// this restriction can be lifted whenever https://github.com/rust-lang/rfcs/pull/3028 is implemented
panic!("run `cargo build --bins` before `cargo run`")
}

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@ -2368,10 +2368,6 @@ fn run(self, builder: &Builder<'_>) {
.current_dir(builder.src.join("src/bootstrap"))
.env("RUSTFLAGS", "-Cdebuginfo=2")
.env("CARGO_TARGET_DIR", builder.out.join("bootstrap"))
// HACK: bootstrap's tests want to know the output directory, but there's no way to set
// it except through config.toml. Set it through an env variable instead.
.env("BOOTSTRAP_OUTPUT_DIRECTORY", &builder.config.out)
.env("BOOTSTRAP_INITIAL_CARGO", &builder.config.initial_cargo)
.env("RUSTC_BOOTSTRAP", "1")
.env("RUSTC", &builder.initial_rustc);
if let Some(flags) = option_env!("RUSTFLAGS") {