Clarify comment about why bootstrap tests need src/doc/book
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1 changed files with 6 additions and 3 deletions
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@ -13,9 +13,12 @@ fn configure_with_args(cmd: &[String], host: &[&str], target: &[&str]) -> Config
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config.save_toolstates = None;
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config.dry_run = DryRun::SelfCheck;
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// Ignore most submodules, since we don't need them for a dry run.
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// But make sure to check out the `doc` and `rust-analyzer` submodules, since some steps need them
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// just to know which commands to run.
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// Ignore most submodules, since we don't need them for a dry run, and the
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// tests run much faster without them.
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//
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// The src/doc/book submodule is needed because TheBook step tries to
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// access files even during a dry-run (may want to consider just skipping
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// that in a dry run).
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let submodule_build = Build::new(Config {
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// don't include LLVM, so CI doesn't require ninja/cmake to be installed
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rust_codegen_backends: vec![],
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