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2024-03-14 r/7693 refactor(nix-compat/store_path): add from_name_and_digest_fixedFlorian Klink1-4/+5
Allow constructing a StorePath with a fixed-size digest. Change-Id: Id7d0b0152f6c55660a8973a02c84afa9188ce3ba Reviewed-on: https://cl.tvl.fyi/c/depot/+/11144 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: John Ericson <git@johnericson.me> Tested-by: BuildkiteCI
2024-03-14 r/7692 refactor(nix-compat/store_path/utils): move helper function inFlorian Klink1-8/+7
This is only used inside this function, in 2 of the match cases. Change-Id: Ib361f5ee0e3b203802f7d05b9a7f332d14bbcf80 Reviewed-on: https://cl.tvl.fyi/c/depot/+/11143 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: John Ericson <git@johnericson.me> Tested-by: BuildkiteCI
2024-03-14 r/7691 refactor(nix-compat/store_path): take [u8;32] for outer fingerprintFlorian Klink1-20/+19
The outer fingerprint used for store path calculation is always a sha256 digest. This includes both input and output-addressed store paths. We used a NixHash here, which can also represent other hash types, and that had a bunch of annoyances: - Whenever we had the bytes, we had to wrap them in a NixHash::Sha256(). - Things like AtermWriteable had to be implemented on NixHash, even though we then had an assertion it was only called in the NixHash::Sha256 case. Change-Id: Ic895503d9b071800d2e52ae057666f44bd0ab9d6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/11142 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: John Ericson <git@johnericson.me> Reviewed-by: picnoir picnoir <picnoir@alternativebit.fr>
2024-02-22 r/7594 refactor(nix-compat/store_path): simplify build_ca_pathFlorian Klink1-14/+12
Move the the `fixed:out:[r:]{}:` generation to a helper function, use matches! for more clarity. Change-Id: I4e930c42aacbf5c7451d1f8c8c80ccb4c45389f0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/11006 Tested-by: BuildkiteCI Reviewed-by: aspen <root@gws.fyi> Autosubmit: flokli <flokli@flokli.de>
2024-01-01 r/7299 feat(nix-compat/store_path): build_ca_path may failFlorian Klink1-3/+3
Change-Id: Ia74ee870f38b7966501458bace541092256c3213 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10509 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-12-21 r/7238 refactor(nix-compat/store_path): centralize self_reference checkFlorian Klink1-16/+12
self_reference being set to true is only allowed for `CAHash::Nar(NixHash::Sha256(_))`, so we can handle this in a check at the front. Change-Id: Ic363ade4789a7767cbe26a6959b143bb53e50e5a Reviewed-on: https://cl.tvl.fyi/c/depot/+/10391 Reviewed-by: edef <edef@edef.eu> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-12-21 r/7237 refactor(nix-compat/store_path/utils): restructure build_ca_pathFlorian Klink1-32/+26
All match cases essentially construct `ty` and `hash`, which is then passed to the `build_store_path_from_fingerprint_parts` function. Change-Id: I01dfd219f9b0ac1afe8af7c6e361ea048117a0e6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10390 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: edef <edef@edef.eu>
2023-12-21 r/7236 refactor(tvix/nix-compat): have helpers interact with StorePathRefFlorian Klink1-22/+22
In most case, we don't actually need an owned `StorePath` struct, but a `StorePathRef<'_>` is sufficient. The lifetime is only due to it holding onto the name, but that one is mostly left untouched. `Derivation::calculate_derivation_path` still needs to return `StorePath`, as its name has a `.drv` appended. Change-Id: Ie0d52f369d785711bb0658ea2b0bd2617fd9f45e Reviewed-on: https://cl.tvl.fyi/c/depot/+/10389 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: edef <edef@edef.eu>
2023-11-22 r/7045 refactor(tvix/nix-compat): cleanup parse_{ca,hash} and fmt structsFlorian Klink1-8/+5
These were used to format to and parse from strings. Move this to the CAHash and NixHash structs directly, and be explicit in the name about which encoding for digests is used. For output path calculation, nix encodes the nixpaths in hex, but for writing out NARInfos, it's using nixbase32. Change-Id: Ia585a76a3811b2609e7ce259fda66a29403b7e07 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10079 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de>
2023-11-10 r/6987 chore(nix-compat/store_path): use hex_literaledef1-8/+6
Change-Id: Id093a0131aa7e3ac532daffbf5a883ca213c83ed Reviewed-on: https://cl.tvl.fyi/c/depot/+/9996 Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de>
2023-10-27 r/6891 feat(nix-compat/store_path): validate_name takes AsRef<[u8]>edef1-2/+1
Change-Id: I8819e2a7b63008a68f4f82035a08b960ac480dc3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9858 Reviewed-by: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-10-27 r/6890 feat(nix-compat/store_path): validate_name over borrowed dataedef1-1/+1
Change-Id: Ifeb6231f48d4ad267a7acd398b4b3b687ee4d560 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9857 Reviewed-by: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-10-27 r/6889 refactor(nix-compat/store_path): don't materialise fingerprintedef1-8/+9
Change-Id: I6a88531ded05c0dfb9232a0343a465fa02fb6989 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9856 Reviewed-by: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-10-27 r/6886 fix(tvix/nix-compat): don't box CAHash::Textedef1-7/+2
Change-Id: I31df3909bc21c9038f9fb831879e60e541242819 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9853 Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de>
2023-10-23 r/6871 refactor(tvix/nix-compat): rename NixHashWithMode -> CAHashFlorian Klink1-55/+79
This specific struct is only used to represent content-addressed paths (in case a Derivation has a fixed-output hash, for example). Rename `Output`'s `hash_with_mode` to `ca_hash`. We now also include `CAHash::Text`, and update the `validate` function of the `Output` struct to reject text hashes there. This allows cleaning up the various output path calculation functions inside nix-compat/src/store_path/utils.rs, as they can now match on the type. `make_type` is renamed to `make_references_string`, `build_regular_ca_path` is renamed to `build_ca_path`, and `build_text_path` has a disclaimer added, because you might not actually want to use it. Change-Id: I674d065f2ed5c804012ddfed56e161ac49d23931 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9814 Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-10-18 r/6851 refactor(tvix/nix-compat): use hash_with_mode's nix_hash_stringFlorian Klink1-7/+1
HashWithMode already provides a to_nix_hash_string() method, giving us exactly the string we need here. Change-Id: Id2635bf3ea6c2514faf3c26b297866d774f4ff4a Reviewed-on: https://cl.tvl.fyi/c/depot/+/9799 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-10-14 r/6807 refactor(tvix/nix-compat): make NixHash an enum with fixed-len bytesFlorian Klink1-42/+28
Less Vec<u8> passed around. Change-Id: Ie153a6bfaa084d7490ffa38634efdf5f3c31a768 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9722 Reviewed-by: Connor Brewster <cbrewster@hey.com> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-09-04 r/6550 refactor(tvix/{cli,store}): move TvixStoreIO to tvix-cli crateFlorian Klink1-0/+12
This trait is eval-specific, there's no point in dealing with these things in tvix-store. This implements the EvalIO interface for a Tvix store. The proper place for this glue code (for now) is tvix-cli, which knows about both tvix-store and tvix-eval. There's one annoyance with this move: The `tvix-store import` subcommand previously also used the TvixStoreIO implementation (because it conveniently did what we wanted). Some of this code had to be duplicated, mostly logic to calculate the NAR-based output path and create the PathInfo object. Some, but potentially more of this can be extracted into helper functions in a shared crate, and then be used from both TvixStoreIO in tvix-cli as well as the tvix-store CLI entrypoint. Change-Id: Ia7515e83c1b54f95baf810fbd8414c5521382d40 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9212 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de>
2023-08-20 r/6512 refactor(tvix/nix-compat/nixhash): validate digest lengthsFlorian Klink1-2/+14
There was a NixHash::new() before, which didn't perform any validation of the digest length. We had some length validation when parsing nix hashes or SRI hashes, but some places didn't perform validation and/or constructed the struct directly. Replace NixHash::new() with a `impl TryFrom<(HashAlgo, Vec<u8>)> for NixHash`, which does do this validation, and update constructing code to use that, rather than populating structs directly. In some rare cases where we're sure the digest length is correct we still populate the struct manually. Fixes b/291. Change-Id: I7a323c5b18d94de0ec15e391b3e7586df42f4229 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9109 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-08-19 r/6488 docs(tvix/nix-compat): remove disambiguityFlorian Klink1-1/+1
Don't import thiserror::Error directly, so rustdoc knows what `crate::store_path::Error` we're talking about. Change-Id: I755c9377521a6833e9a77cb1a41b48edafb31fe0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9086 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de>
2023-07-21 r/6433 feat(tvix/nix-compat): have StorePath accept bytesFlorian Klink1-1/+1
The primary constructor for this is now from_bytes, from_string is simply calling .as_bytes() on the string, passing it along. The InvalidName error now contains a Vec<u8>, to encode the invalid name (which might not be a string anymore). from_absolute_path now accepts a &[u8] (even though we might want to make this a OSString of some sort). StorePath::validate_name has been degraded to a pub(crate) function. It's still used in src/derivation, even though it probably shouldn't at all - that cleanup is left for cl/8412 though. Change-Id: I6b4e62a6fa5c4bec13b535279e73444f0b83ad35 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8973 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-07-21 r/6432 feat(tvix/nix-compat): fold NameError into ErrorFlorian Klink1-12/+11
This being a nested error makes things more complicated than necessary. Also, this caused BuildStorePathError to only hold NameError, so refactor these utility functions to either return Error, or BuildStorePathError. Change-Id: I046fb403780cc5135df8b8833a291fc2a90fd913 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8972 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su>
2023-05-18 r/6161 refactor(tvix/nix-compat): clippyFlorian Klink1-2/+2
Change-Id: Ie5277a5c15d9dfe543ca41fa7c6a1eedf22a9f64 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8593 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-04-09 r/6088 refactor(nix-compat): Properly encapsulate store path constructionJohn Ericson1-40/+168
Before there was code scattered about (e.g. text hashing module and derivation output computation) constructing store paths from low level building blocks --- there was some duplication and it was easy to make nonsense store paths. Now, we have roughly the same "safe-ish" ways of constructing them as C++ Nix, and only those are exposed: - Make text hashed content-addressed store paths - Make other content-addressed store paths - Make input-addressed fixed output hashes Change-Id: I122a3ee0802b4f45ae386306b95b698991be89c8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8411 Reviewed-by: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-03-31 r/6069 refactor(nix-compat): Avoid encoding round tripJohn Ericson1-6/+10
When building store paths we can just construct the thing. Change-Id: Ife5d461d6a440ecbb22f32a86a6d51d212a2035b Reviewed-on: https://cl.tvl.fyi/c/depot/+/8409 Reviewed-by: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-03-31 r/6067 refactor(tvix/nix-compat): Inline `texthash` modJohn Ericson1-1/+40
It is moved into `store_path::utils` with the other path builders. Change-Id: I3257170e442af5d83bcf79e63fa7387dd914597c Reviewed-on: https://cl.tvl.fyi/c/depot/+/8410 Reviewed-by: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-03-30 r/6060 refactor(tvix/nix-compat): move build_store_path out of derivationFlorian Klink1-0/+118
This doesn't have anything to do with ATerms, we just happen to be using the aterm representation of a Derivation as contents. Moving this into store_path/utils.rs makes these things much cleaner - Have a build_store_path_from_references function, and a build_store_path_from_fingerprint helper function that makes use of it. build_store_path_from_references is invoked from the derivation module which can be used to calculate the derivation path. In the derivation module, we also invoke build_store_path_from_fingerprint during the output path calculation. Change-Id: Ia8d61a5e8e5d3f396f93593676ed3f5d1a3f1d66 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8367 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI