ruff/crates/ty_vendored/src/lib.rs

109 lines
3.7 KiB
Rust

#![warn(
clippy::disallowed_methods,
reason = "Prefer System trait methods over std methods in ty crates"
)]
use ruff_db::vendored::VendoredFileSystem;
use std::sync::LazyLock;
/// The source commit of the vendored typeshed.
pub const SOURCE_COMMIT: &str =
include_str!("../../../crates/ty_vendored/vendor/typeshed/source_commit.txt").trim_ascii_end();
static_assertions::const_assert_eq!(SOURCE_COMMIT.len(), 40);
// The file path here is hardcoded in this crate's `build.rs` script.
// Luckily this crate will fail to build if this file isn't available at build time.
static TYPESHED_ZIP_BYTES: &[u8] = include_bytes!(concat!(env!("OUT_DIR"), "/zipped_typeshed.zip"));
pub fn file_system() -> &'static VendoredFileSystem {
static VENDORED_TYPESHED_STUBS: LazyLock<VendoredFileSystem> =
LazyLock::new(|| VendoredFileSystem::new_static(TYPESHED_ZIP_BYTES).unwrap());
&VENDORED_TYPESHED_STUBS
}
#[cfg(test)]
mod tests {
use std::io::{self, Read};
use std::path::Path;
use ruff_db::vendored::VendoredPath;
use super::*;
#[test]
fn typeshed_zip_created_at_build_time() {
let mut typeshed_zip_archive =
zip::ZipArchive::new(io::Cursor::new(TYPESHED_ZIP_BYTES)).unwrap();
let mut functools_module_stub = typeshed_zip_archive
.by_name("stdlib/functools.pyi")
.unwrap();
assert!(functools_module_stub.is_file());
let mut functools_module_stub_source = String::new();
functools_module_stub
.read_to_string(&mut functools_module_stub_source)
.unwrap();
assert!(functools_module_stub_source.contains("def update_wrapper("));
}
#[test]
fn typeshed_vfs_consistent_with_vendored_stubs() {
let vendored_typeshed_dir = Path::new("vendor/typeshed").canonicalize().unwrap();
let vendored_typeshed_stubs = file_system();
let mut empty_iterator = true;
for entry in walkdir::WalkDir::new(&vendored_typeshed_dir).min_depth(1) {
empty_iterator = false;
let entry = entry.unwrap();
let absolute_path = entry.path();
let file_type = entry.file_type();
let relative_path = absolute_path
.strip_prefix(&vendored_typeshed_dir)
.unwrap_or_else(|_| {
panic!("Expected {absolute_path:?} to be a child of {vendored_typeshed_dir:?}")
});
let vendored_path = <&VendoredPath>::try_from(relative_path)
.unwrap_or_else(|_| panic!("Expected {relative_path:?} to be valid UTF-8"));
assert!(
vendored_typeshed_stubs.exists(vendored_path),
"Expected {vendored_path:?} to exist in the `VendoredFileSystem`!
Vendored file system:
{vendored_typeshed_stubs:#?}
"
);
let vendored_path_kind = vendored_typeshed_stubs
.metadata(vendored_path)
.unwrap_or_else(|_| {
panic!(
"Expected metadata for {vendored_path:?} to be retrievable from the `VendoredFileSystem!
Vendored file system:
{vendored_typeshed_stubs:#?}
"
)
})
.kind();
assert_eq!(
vendored_path_kind.is_directory(),
file_type.is_dir(),
"{vendored_path:?} had type {vendored_path_kind:?}, inconsistent with fs path {relative_path:?}: {file_type:?}"
);
}
assert!(
!empty_iterator,
"Expected there to be at least one file or directory in the vendored typeshed stubs!"
);
}
}