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refactor(nix-compat/nixhash/ca_hash): inline algo_str

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This is only used in to_nix_nixbase32_string, and in one place in
narinfo2parquet (though it might be sliced wrongly there too).

This is a partial revert of cl/12041, at least for the narinfo2parquet
parts.

Change-Id: Ic8c57373f7ab79043a491267e8484fa8399cea04
Reviewed-on: https://cl.snix.dev/c/snix/+/30564
Tested-by: besadii
Autosubmit: Florian Klink <flokli@flokli.de>
Reviewed-by: edef <edef@edef.eu>
This commit is contained in:
Florian Klink 2025-06-04 23:05:42 +03:00 • committed by clbot
parent 63036b3c5e
commit b90da345ab
2 changed files with 36 additions and 23 deletions
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23
contrib/narinfo2parquet/src/main.rs
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@ -12,6 +12,7 @@ use jemallocator::Jemalloc;
use nix_compat::{
narinfo::{self, NarInfo},
nixbase32,
nixhash::{CAHash, NixHash},
};
use polars::{io::parquet::ParquetWriter, prelude::*};
use std::{
@ -192,8 +193,26 @@ impl FrameBuilder {
}));
if let Some(ca) = &entry.ca {
self.ca_algo.append_value(ca.algo_str());
self.ca_hash.append_value(ca.hash().digest_as_bytes());
// decompose the CAHash into algo and hash parts
// TODO(edef): split this up differently?
let (algo, hash) = match ca {
CAHash::Flat(h) => match h {
NixHash::Md5(h) => ("fixed:md5", &h[..]),
NixHash::Sha1(h) => ("fixed:sha1", &h[..]),
NixHash::Sha256(h) => ("fixed:sha256", &h[..]),
NixHash::Sha512(h) => ("fixed:sha512", &h[..]),
},
CAHash::Nar(h) => match h {
NixHash::Md5(h) => ("fixed:r:md5", &h[..]),
NixHash::Sha1(h) => ("fixed:r:sha1", &h[..]),
NixHash::Sha256(h) => ("fixed:r:sha256", &h[..]),
NixHash::Sha512(h) => ("fixed:r:sha512", &h[..]),
},
CAHash::Text(h) => ("text:sha256", &h[..]),
};
self.ca_algo.append_value(algo);
self.ca_hash.append_value(hash);
} else {
self.ca_algo.append_null();
self.ca_hash.append_null();