#![allow(clippy::manual_assert)] mod progress; use self::progress::Progress; use anyhow::Result; use flate2::read::GzDecoder; use rayon::iter::{IntoParallelRefIterator, ParallelIterator}; use rayon::ThreadPoolBuilder; use std::collections::BTreeSet; use std::env; use std::ffi::OsStr; use std::fs; use std::path::{Path, PathBuf}; use tar::Archive; use walkdir::{DirEntry, WalkDir}; const REVISION: &str = "86d69c705a552236a622eee3fdea94bf13c5f102"; #[rustfmt::skip] static EXCLUDE_FILES: &[&str] = &[ // TODO: non-lifetime binders: `where for<'a, T> &'a Struct: Trait` // https://github.com/dtolnay/syn/issues/1435 "src/tools/rustfmt/tests/source/issue_5721.rs", "src/tools/rustfmt/tests/source/non-lifetime-binders.rs", "src/tools/rustfmt/tests/target/issue_5721.rs", "src/tools/rustfmt/tests/target/non-lifetime-binders.rs", "tests/rustdoc-json/non_lifetime_binders.rs", "tests/rustdoc/inline_cross/auxiliary/non_lifetime_binders.rs", "tests/rustdoc/non_lifetime_binders.rs", // TODO: return type notation: `where T: Trait` and `where T::method(..): Send` // https://github.com/dtolnay/syn/issues/1434 "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/return_type_syntax_assoc_type_bound.rs", "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/return_type_syntax_in_path.rs", "src/tools/rustfmt/tests/target/return-type-notation.rs", "tests/ui/associated-type-bounds/return-type-notation/basic.rs", "tests/ui/associated-type-bounds/return-type-notation/higher-ranked-bound-works.rs", "tests/ui/associated-type-bounds/return-type-notation/namespace-conflict.rs", "tests/ui/associated-type-bounds/return-type-notation/path-constrained-in-method.rs", "tests/ui/associated-type-bounds/return-type-notation/path-self-qself.rs", "tests/ui/associated-type-bounds/return-type-notation/path-works.rs", "tests/ui/associated-type-bounds/return-type-notation/unpretty-parenthesized.rs", "tests/ui/async-await/return-type-notation/normalizing-self-auto-trait-issue-109924.rs", "tests/ui/async-await/return-type-notation/rtn-implied-in-supertrait.rs", "tests/ui/async-await/return-type-notation/supertrait-bound.rs", "tests/ui/borrowck/alias-liveness/rtn-static.rs", "tests/ui/feature-gates/feature-gate-return_type_notation.rs", // TODO: lazy type alias syntax with where-clause in trailing position // https://github.com/dtolnay/syn/issues/1525 "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/type_item_where_clause.rs", "src/tools/rustfmt/tests/source/type-alias-where-clauses-with-comments.rs", "src/tools/rustfmt/tests/source/type-alias-where-clauses.rs", "src/tools/rustfmt/tests/target/type-alias-where-clauses-with-comments.rs", "src/tools/rustfmt/tests/target/type-alias-where-clauses.rs", "tests/rustdoc/typedef-inner-variants-lazy_type_alias.rs", // TODO: gen blocks and functions // https://github.com/dtolnay/syn/issues/1526 "compiler/rustc_codegen_cranelift/example/gen_block_iterate.rs", "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/gen_blocks.rs", "tests/ui/coroutine/async-gen-deduce-yield.rs", "tests/ui/coroutine/async-gen-yield-ty-is-unit.rs", "tests/ui/coroutine/async_gen_fn_iter.rs", "tests/ui/coroutine/gen_block_is_fused_iter.rs", "tests/ui/coroutine/gen_block_is_iter.rs", "tests/ui/coroutine/gen_block_iterate.rs", "tests/ui/coroutine/gen_fn_iter.rs", "tests/ui/coroutine/gen_fn_lifetime_capture.rs", "tests/ui/coroutine/other-attribute-on-gen.rs", "tests/ui/coroutine/return-types-diverge.rs", "tests/ui/higher-ranked/builtin-closure-like-bounds.rs", "tests/ui/sanitizer/cfi/coroutine.rs", // TODO: `!` as a pattern // https://github.com/dtolnay/syn/issues/1546 "tests/mir-opt/building/match/never_patterns.rs", "tests/ui/rfcs/rfc-0000-never_patterns/diverges.rs", "tests/ui/rfcs/rfc-0000-never_patterns/use-bindings.rs", // TODO: async trait bounds: `impl async Fn()` // https://github.com/dtolnay/syn/issues/1628 "src/tools/miri/tests/pass/async-closure-captures.rs", "src/tools/miri/tests/pass/async-closure-drop.rs", "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/async_trait_bound.rs", "src/tools/rustfmt/tests/target/asyncness.rs", "tests/codegen/async-closure-debug.rs", "tests/coverage/async_closure.rs", "tests/ui/async-await/async-closures/async-fn-mut-for-async-fn.rs", "tests/ui/async-await/async-closures/async-fn-once-for-async-fn.rs", "tests/ui/async-await/async-closures/auxiliary/foreign.rs", "tests/ui/async-await/async-closures/body-check-on-non-fnmut.rs", "tests/ui/async-await/async-closures/box-deref-in-debuginfo.rs", "tests/ui/async-await/async-closures/brand.rs", "tests/ui/async-await/async-closures/captures.rs", "tests/ui/async-await/async-closures/clone-closure.rs", "tests/ui/async-await/async-closures/constrained-but-no-upvars-yet.rs", "tests/ui/async-await/async-closures/debuginfo-by-move-body.rs", "tests/ui/async-await/async-closures/drop.rs", "tests/ui/async-await/async-closures/force-move-due-to-inferred-kind.rs", "tests/ui/async-await/async-closures/foreign.rs", "tests/ui/async-await/async-closures/inline-body.rs", "tests/ui/async-await/async-closures/mangle.rs", "tests/ui/async-await/async-closures/moro-example.rs", "tests/ui/async-await/async-closures/move-is-async-fn.rs", "tests/ui/async-await/async-closures/mut-ref-reborrow.rs", "tests/ui/async-await/async-closures/no-borrow-from-env.rs", "tests/ui/async-await/async-closures/non-copy-arg-does-not-force-inner-move.rs", "tests/ui/async-await/async-closures/overlapping-projs.rs", "tests/ui/async-await/async-closures/precise-captures.rs", "tests/ui/async-await/async-closures/refd.rs", "tests/ui/async-await/async-closures/signature-deduction.rs", "tests/ui/async-await/async-fn/edition-2015-not-async-bound.rs", "tests/ui/async-await/async-fn/higher-ranked-async-fn.rs", "tests/ui/async-await/async-fn/impl-trait.rs", "tests/ui/async-await/async-fn/project.rs", "tests/ui/async-await/async-fn/sugar.rs", // TODO: mutable by-reference bindings (mut ref) // https://github.com/dtolnay/syn/issues/1629 "src/tools/rustfmt/tests/source/mut_ref.rs", "src/tools/rustfmt/tests/target/mut_ref.rs", "tests/ui/mut/mut-ref.rs", // TODO: postfix match // https://github.com/dtolnay/syn/issues/1630 "src/tools/rustfmt/tests/source/postfix-match/pf-match.rs", "src/tools/rustfmt/tests/target/postfix-match/pf-match.rs", "tests/pretty/postfix-match/simple-matches.rs", "tests/ui/match/postfix-match/no-unused-parens.rs", "tests/ui/match/postfix-match/pf-match-chain.rs", "tests/ui/match/postfix-match/postfix-match.rs", // TODO: delegation // https://github.com/dtolnay/syn/issues/1580 "tests/pretty/delegation.rs", "tests/ui/delegation/body-identity-glob.rs", "tests/ui/delegation/body-identity-list.rs", "tests/ui/delegation/explicit-paths-in-traits-pass.rs", "tests/ui/delegation/explicit-paths-pass.rs", "tests/ui/delegation/explicit-paths-signature-pass.rs", "tests/ui/delegation/fn-header.rs", "tests/ui/delegation/generics/free-fn-to-free-fn-pass.rs", "tests/ui/delegation/generics/free-fn-to-trait-method-pass.rs", "tests/ui/delegation/generics/impl-to-free-fn-pass.rs", "tests/ui/delegation/generics/impl-trait-to-trait-method-pass.rs", "tests/ui/delegation/generics/inherent-impl-to-trait-method-pass.rs", "tests/ui/delegation/generics/trait-method-to-other-pass.rs", "tests/ui/delegation/glob-glob.rs", "tests/ui/delegation/glob-override.rs", "tests/ui/delegation/glob.rs", "tests/ui/delegation/impl-trait.rs", "tests/ui/delegation/list.rs", "tests/ui/delegation/macro-inside-glob.rs", "tests/ui/delegation/macro-inside-list.rs", "tests/ui/delegation/method-call-priority.rs", "tests/ui/delegation/parse.rs", "tests/ui/delegation/rename.rs", "tests/ui/delegation/self-coercion.rs", // TODO: for await // https://github.com/dtolnay/syn/issues/1631 "tests/ui/async-await/for-await-2015.rs", "tests/ui/async-await/for-await-passthrough.rs", "tests/ui/async-await/for-await.rs", // TODO: const trait bound: `T: const Trait` and `impl const Trait` and `~const Trait` // https://github.com/dtolnay/syn/issues/1632 "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/const_trait_bound.rs", "tests/ui/generic-const-items/const-trait-impl.rs", "tests/ui/traits/const-traits/tilde-const-syntax.rs", // TODO: unparenthesized half-open range pattern inside slice pattern: `[1..]` // https://github.com/dtolnay/syn/issues/1769 "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/range_pat.rs", "tests/ui/consts/miri_unleashed/const_refers_to_static_cross_crate.rs", // TODO: pinned type sugar: `&pin const Self` // https://github.com/dtolnay/syn/issues/1770 "src/tools/rustfmt/tests/source/pin_sugar.rs", "src/tools/rustfmt/tests/target/pin_sugar.rs", "tests/ui/async-await/pin-sugar.rs", // TODO: `|| .. .method()` "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/closure_range_method_call.rs", "src/tools/rustfmt/tests/source/issue-4808.rs", // Several of the above "tests/ui/unpretty/expanded-exhaustive.rs", // Rustc bug: https://github.com/rust-lang/rust/issues/132080 "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0073_safe_declarations_in_extern_blocks.rs", // Compile-fail expr parameter in const generic position: f::<1 + 2>() "tests/ui/const-generics/early/closing-args-token.rs", "tests/ui/const-generics/early/const-expression-parameter.rs", // Compile-fail variadics in not the last position of a function parameter list "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/fn_def_param.rs", "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/param_list_vararg.rs", "tests/ui/parser/variadic-ffi-syntactic-pass.rs", // Need at least one trait in impl Trait, no such type as impl 'static "tests/ui/type-alias-impl-trait/generic_type_does_not_live_long_enough.rs", // Negative polarity trait bound: `where T: !Copy` "src/tools/rustfmt/tests/target/negative-bounds.rs", "tests/ui/traits/negative-bounds/supertrait.rs", // Const impl that is not a trait impl: `impl ~const T {}` "tests/ui/traits/const-traits/syntax.rs", // Lifetimes and types out of order in angle bracketed path arguments "tests/ui/parser/constraints-before-generic-args-syntactic-pass.rs", // Deprecated anonymous parameter syntax in traits "src/tools/rustfmt/tests/source/trait.rs", "src/tools/rustfmt/tests/target/trait.rs", "tests/ui/issues/issue-13105.rs", "tests/ui/issues/issue-13775.rs", "tests/ui/issues/issue-34074.rs", "tests/ui/proc-macro/trait-fn-args-2015.rs", // Deprecated where-clause location "src/tools/rustfmt/tests/source/issue_4257.rs", "src/tools/rustfmt/tests/source/issue_4911.rs", "src/tools/rustfmt/tests/target/issue_4257.rs", "src/tools/rustfmt/tests/target/issue_4911.rs", "tests/pretty/gat-bounds.rs", "tests/rustdoc/generic-associated-types/gats.rs", // Deprecated trait object syntax with parenthesized generic arguments and no dyn keyword "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/bare_dyn_types_with_paren_as_generic_args.rs", "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/path_fn_trait_args.rs", "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/typepathfn_with_coloncolon.rs", "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/value_parameters_no_patterns.rs", "src/tools/rustfmt/tests/source/attrib.rs", "src/tools/rustfmt/tests/source/closure.rs", "src/tools/rustfmt/tests/source/existential_type.rs", "src/tools/rustfmt/tests/source/fn-simple.rs", "src/tools/rustfmt/tests/source/fn_args_layout-vertical.rs", "src/tools/rustfmt/tests/source/issue-4689/one.rs", "src/tools/rustfmt/tests/source/issue-4689/two.rs", "src/tools/rustfmt/tests/source/paths.rs", "src/tools/rustfmt/tests/source/structs.rs", "src/tools/rustfmt/tests/target/attrib.rs", "src/tools/rustfmt/tests/target/closure.rs", "src/tools/rustfmt/tests/target/existential_type.rs", "src/tools/rustfmt/tests/target/fn-simple.rs", "src/tools/rustfmt/tests/target/fn.rs", "src/tools/rustfmt/tests/target/fn_args_layout-vertical.rs", "src/tools/rustfmt/tests/target/issue-4689/one.rs", "src/tools/rustfmt/tests/target/issue-4689/two.rs", "src/tools/rustfmt/tests/target/paths.rs", "src/tools/rustfmt/tests/target/structs.rs", "tests/codegen-units/item-collection/non-generic-closures.rs", "tests/debuginfo/recursive-enum.rs", "tests/pretty/closure-reform-pretty.rs", "tests/run-make/reproducible-build-2/reproducible-build.rs", "tests/run-make/reproducible-build/reproducible-build.rs", "tests/ui/auxiliary/typeid-intrinsic-aux1.rs", "tests/ui/auxiliary/typeid-intrinsic-aux2.rs", "tests/ui/impl-trait/generic-with-implicit-hrtb-without-dyn.rs", "tests/ui/lifetimes/auxiliary/lifetime_bound_will_change_warning_lib.rs", "tests/ui/lifetimes/bare-trait-object-borrowck.rs", "tests/ui/lifetimes/bare-trait-object.rs", "tests/ui/parser/bounds-obj-parens.rs", // Various extensions to Rust syntax made up by rust-analyzer "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/const_param_default_path.rs", "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/use_tree_abs_star.rs", "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0015_use_tree.rs", "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0029_range_forms.rs", "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0051_parameter_attrs.rs", "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0055_dot_dot_dot.rs", "src/tools/rust-analyzer/crates/parser/test_data/parser/ok/0068_item_modifiers.rs", "src/tools/rust-analyzer/crates/syntax/test_data/parser/validation/0031_block_inner_attrs.rs", "src/tools/rust-analyzer/crates/syntax/test_data/parser/validation/0038_endless_inclusive_range.rs", "src/tools/rust-analyzer/crates/syntax/test_data/parser/validation/0045_ambiguous_trait_object.rs", "src/tools/rust-analyzer/crates/syntax/test_data/parser/validation/0046_mutable_const_item.rs", // Placeholder syntax for "throw expressions" "compiler/rustc_errors/src/translation.rs", "compiler/rustc_expand/src/module.rs", "compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs", "src/tools/clippy/tests/ui/needless_return.rs", "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/yeet_expr.rs", "tests/pretty/yeet-expr.rs", "tests/ui/try-trait/yeet-for-option.rs", "tests/ui/try-trait/yeet-for-result.rs", // Edition 2015 code using identifiers that are now keywords // TODO: some of these we should probably parse "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/dyn_trait_type_weak.rs", "src/tools/rustfmt/tests/source/configs/indent_style/block_call.rs", "src/tools/rustfmt/tests/source/configs/use_try_shorthand/false.rs", "src/tools/rustfmt/tests/source/configs/use_try_shorthand/true.rs", "src/tools/rustfmt/tests/source/issue_1306.rs", "src/tools/rustfmt/tests/source/try-conversion.rs", "src/tools/rustfmt/tests/target/configs/indent_style/block_call.rs", "src/tools/rustfmt/tests/target/configs/use_try_shorthand/false.rs", "src/tools/rustfmt/tests/target/issue-1681.rs", "src/tools/rustfmt/tests/target/issue_1306.rs", "tests/ui/dyn-keyword/dyn-2015-no-warnings-without-lints.rs", "tests/ui/editions/edition-keywords-2015-2015.rs", "tests/ui/editions/edition-keywords-2015-2018.rs", "tests/ui/lint/lint_pre_expansion_extern_module_aux.rs", "tests/ui/macros/macro-comma-support-rpass.rs", "tests/ui/macros/try-macro.rs", "tests/ui/parser/extern-crate-async.rs", "tests/ui/try-block/try-is-identifier-edition2015.rs", // Excessive nesting "tests/ui/issues/issue-74564-if-expr-stack-overflow.rs", // Testing tools on invalid syntax "src/tools/rustfmt/tests/coverage/target/comments.rs", "src/tools/rustfmt/tests/parser/issue-4126/invalid.rs", "src/tools/rustfmt/tests/parser/issue_4418.rs", "src/tools/rustfmt/tests/parser/stashed-diag.rs", "src/tools/rustfmt/tests/parser/stashed-diag2.rs", "src/tools/rustfmt/tests/parser/unclosed-delims/issue_4466.rs", "src/tools/rustfmt/tests/source/configs/disable_all_formatting/true.rs", "src/tools/rustfmt/tests/source/configs/spaces_around_ranges/false.rs", "src/tools/rustfmt/tests/source/configs/spaces_around_ranges/true.rs", "src/tools/rustfmt/tests/source/type.rs", "src/tools/rustfmt/tests/target/configs/spaces_around_ranges/false.rs", "src/tools/rustfmt/tests/target/configs/spaces_around_ranges/true.rs", "src/tools/rustfmt/tests/target/type.rs", "src/tools/rustfmt/tests/target/unsafe_extern_blocks.rs", "tests/run-make/translation/test.rs", "tests/ui/generics/issue-94432-garbage-ice.rs", // Generated file containing a top-level expression, used with `include!` "compiler/rustc_codegen_gcc/src/intrinsic/archs.rs", // Not actually test cases "tests/ui/lint/expansion-time-include.rs", "tests/ui/macros/auxiliary/macro-comma-support.rs", "tests/ui/macros/auxiliary/macro-include-items-expr.rs", "tests/ui/macros/include-single-expr-helper.rs", "tests/ui/macros/include-single-expr-helper-1.rs", "tests/ui/parser/issues/auxiliary/issue-21146-inc.rs", ]; #[rustfmt::skip] static EXCLUDE_DIRS: &[&str] = &[ // Inputs that intentionally do not parse "src/tools/rust-analyzer/crates/parser/test_data/parser/err", "src/tools/rust-analyzer/crates/parser/test_data/parser/inline/err", // Inputs that lex but do not necessarily parse "src/tools/rust-analyzer/crates/parser/test_data/lexer", // Inputs that used to crash rust-analyzer, but aren't necessarily supposed to parse "src/tools/rust-analyzer/crates/syntax/test_data/parser/fuzz-failures", "src/tools/rust-analyzer/crates/syntax/test_data/reparse/fuzz-failures", // Inputs that crash rustc, making no claim about whether they are valid Rust "tests/crashes", ]; // Directories in which a .stderr implies the corresponding .rs is not expected // to work. static UI_TEST_DIRS: &[&str] = &["tests/ui", "tests/rustdoc-ui"]; pub fn for_each_rust_file(for_each: impl Fn(&Path) + Sync + Send) { let mut rs_files = BTreeSet::new(); let repo_dir = Path::new("tests/rust"); for entry in WalkDir::new(repo_dir) .into_iter() .filter_entry(base_dir_filter) { let entry = entry.unwrap(); if !entry.file_type().is_dir() { rs_files.insert(entry.into_path()); } } for ui_test_dir in UI_TEST_DIRS { for entry in WalkDir::new(repo_dir.join(ui_test_dir)) { let mut path = entry.unwrap().into_path(); if path.extension() == Some(OsStr::new("stderr")) { loop { rs_files.remove(&path.with_extension("rs")); path = path.with_extension(""); if path.extension().is_none() { break; } } } } } rs_files.par_iter().map(PathBuf::as_path).for_each(for_each); } pub fn base_dir_filter(entry: &DirEntry) -> bool { let path = entry.path(); let mut path_string = path.to_string_lossy(); if cfg!(windows) { path_string = path_string.replace('\\', "/").into(); } let path_string = if path_string == "tests/rust" { return true; } else if let Some(path) = path_string.strip_prefix("tests/rust/") { path } else { panic!("unexpected path in Rust dist: {}", path_string); }; if path.is_dir() { return !EXCLUDE_DIRS.contains(&path_string); } if path.extension() != Some(OsStr::new("rs")) { return false; } !EXCLUDE_FILES.contains(&path_string) } #[allow(dead_code)] pub fn edition(path: &Path) -> &'static str { if path.ends_with("dyn-2015-no-warnings-without-lints.rs") { "2015" } else { "2021" } } #[allow(dead_code)] pub fn abort_after() -> usize { match env::var("ABORT_AFTER_FAILURE") { Ok(s) => s.parse().expect("failed to parse ABORT_AFTER_FAILURE"), Err(_) => usize::MAX, } } pub fn rayon_init() { let stack_size = match env::var("RUST_MIN_STACK") { Ok(s) => s.parse().expect("failed to parse RUST_MIN_STACK"), Err(_) => 1024 * 1024 * if cfg!(debug_assertions) { 40 } else { 20 }, }; ThreadPoolBuilder::new() .stack_size(stack_size) .build_global() .unwrap(); } pub fn clone_rust() { let needs_clone = match fs::read_to_string("tests/rust/COMMIT") { Err(_) => true, Ok(contents) => contents.trim() != REVISION, }; if needs_clone { download_and_unpack().unwrap(); } let mut missing = String::new(); let test_src = Path::new("tests/rust"); let mut exclude_files_set = BTreeSet::new(); for exclude in EXCLUDE_FILES { if !exclude_files_set.insert(exclude) { panic!("duplicate path in EXCLUDE_FILES: {}", exclude); } for dir in EXCLUDE_DIRS { if Path::new(exclude).starts_with(dir) { panic!("excluded file {} is inside an excluded dir", exclude); } } if !test_src.join(exclude).is_file() { missing += "\ntests/rust/"; missing += exclude; } } let mut exclude_dirs_set = BTreeSet::new(); for exclude in EXCLUDE_DIRS { if !exclude_dirs_set.insert(exclude) { panic!("duplicate path in EXCLUDE_DIRS: {}", exclude); } if !test_src.join(exclude).is_dir() { missing += "\ntests/rust/"; missing += exclude; missing += "/"; } } if !missing.is_empty() { panic!("excluded test file does not exist:{}\n", missing); } } fn download_and_unpack() -> Result<()> { let url = format!( "https://github.com/rust-lang/rust/archive/{}.tar.gz", REVISION ); let response = reqwest::blocking::get(url)?.error_for_status()?; let progress = Progress::new(response); let decoder = GzDecoder::new(progress); let mut archive = Archive::new(decoder); let prefix = format!("rust-{}", REVISION); let tests_rust = Path::new("tests/rust"); if tests_rust.exists() { fs::remove_dir_all(tests_rust)?; } for entry in archive.entries()? { let mut entry = entry?; let path = entry.path()?; if path == Path::new("pax_global_header") { continue; } let relative = path.strip_prefix(&prefix)?; let out = tests_rust.join(relative); entry.unpack(&out)?; } fs::write("tests/rust/COMMIT", REVISION)?; Ok(()) }