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Add support for URL requirements in --generate-hashes (#2952)

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## Summary

This PR enables hash generation for URL requirements when the user
provides `--generate-hashes` to `pip compile`. While we include the
hashes from the registry already, today, we omit hashes for URLs.

To power hash generation, we introduce a `HashPolicy` abstraction:

```rust
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum HashPolicy<'a> {
    /// No hash policy is specified.
    None,
    /// Hashes should be generated (specifically, a SHA-256 hash), but not validated.
    Generate,
    /// Hashes should be validated against a pre-defined list of hashes. If necessary, hashes should
    /// be generated so as to ensure that the archive is valid.
    Validate(&'a [HashDigest]),
}
```

All of the methods on the distribution database now accept this policy,
instead of accepting `&'a [HashDigest]`.

Closes #2378.
This commit is contained in:
Charlie Marsh 2024-04-10 16:02:45 -04:00 • committed by GitHub
parent 8513d603b4
commit 006379c50c
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31 changed files with 546 additions and 495 deletions
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2
crates/uv-resolver/src/lib.rs
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@ -2,7 +2,6 @@ pub use dependency_mode::DependencyMode;
pub use error::ResolveError;
pub use exclusions::Exclusions;
pub use flat_index::FlatIndex;
pub use hash_checking_mode::HashCheckingMode;
pub use manifest::Manifest;
pub use options::{Options, OptionsBuilder};
pub use preferences::{Preference, PreferenceError};
@ -27,7 +26,6 @@ mod editables;
mod error;
mod exclusions;
mod flat_index;
mod hash_checking_mode;
mod manifest;
mod options;
mod pins;