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feat(tvix/nix-compat/narinfo): add fingerprint

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This adds support to compute the fingerprint string, which is what's
ed25519-signed in binary caches.

Change-Id: I8947239c609896acfd7261f110450014bedf465a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10080
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
This commit is contained in:
Florian Klink 2023-11-19 17:53:01 +02:00 • committed by flokli
parent bb18556bf3
commit a834966efd
2 changed files with 64 additions and 0 deletions
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14
tvix/nix-compat/src/narinfo/mod.rs
View file

@ -30,8 +30,11 @@ use crate::{
store_path::StorePathRef,
};
mod fingerprint;
mod signature;
pub use fingerprint::fingerprint;
pub use signature::{Signature, SignatureError};
#[derive(Debug)]
@ -282,6 +285,17 @@ impl<'a> NarInfo<'a> {
flags,
})
}
/// Computes the fingerprint string for certain fields in this [NarInfo].
/// This fingerprint is signed in [self.signatures].
pub fn fingerprint(&self) -> String {
fingerprint(
&self.store_path,
&self.nar_hash,
self.nar_size,
self.references.iter(),
)
}
}
impl Display for NarInfo<'_> {