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Fix running bootstrap tests on a fresh clone

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In #96303, I changed the tests not to manage submodules, with the main
goal of avoiding a clone for llvm-project. Unfortunately, there are some tests
which depend on submodules - I didn't notice locally because they were already checked out for me,
and CI doesn't use submodule handling at all. Fresh clones, however, were impacted:
```
failures:

---- builder::tests::defaults::doc_default stdout ----
thread 'main' panicked at 'fs::read_dir(builder.src.join(&relative_path).join("redirects")) failed with No such file or directory (os error 2)', src/bootstrap/doc.rs:232:21
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

---- builder::tests::dist::dist_only_cross_host stdout ----
thread 'main' panicked at 'fs::read_to_string(&toml_file_name) failed with No such file or directory (os error 2)', src/bootstrap/lib.rs:1314:20
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
```

Try and get the best of both worlds by only checking out the submodules actually used in tests.
This commit is contained in:
Joshua Nelson 2022-04-24 19:53:06 -05:00
parent 18f314e702
commit 212fc2134d
1 changed files with 12 additions and 0 deletions
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12
src/bootstrap/builder/tests.rs
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@ -7,7 +7,19 @@ fn configure(cmd: &str, host: &[&str], target: &[&str]) -> Config {
// don't save toolstates
config.save_toolstates = None;
config.dry_run = true;
// Ignore most submodules, since we don't need them for a dry run.
// But make sure to check out the `doc` and `rust-analyzer` submodules, since some steps need them
// just to know which commands to run.
let submodule_build = Build::new(Config {
// don't include LLVM, so CI doesn't require ninja/cmake to be installed
rust_codegen_backends: vec![],
..Config::parse(&["check".to_owned()])
});
submodule_build.update_submodule(Path::new("src/doc/book"));
submodule_build.update_submodule(Path::new("src/tools/rust-analyzer"));
config.submodules = Some(false);
config.ninja_in_file = false;
// try to avoid spurious failures in dist where we create/delete each others file
// HACK: rather than pull in `tempdir`, use the one that cargo has conveniently created for us