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2023-10-16 r/6831 feat(nix-compat/{aterm,derivation}): init parserFlorian Klink1-1/+8
This provides a nom-based parser for Nix derivations in ATerm format, which can be reached via `Derivation::from_aterm_bytes`. Some of the lower-level ATerm primitives are moved into a (new) aterm module, and some more higher-level ones that construct derivation- specific types. Also, move the escape_bytes function into there, this is a generic ATerm thing. Change-Id: I2b03b8a1461c7ea2fcb8640c2fc3d1fa3ea719fb Reviewed-on: https://cl.tvl.fyi/c/depot/+/9730 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2023-10-16 r/6828 refactor(nix-compat/derivation): fix function nameFlorian Klink1-1/+1
typo: write_enviroment -> write_environment. Change-Id: I1a2dc826c0bf71f6ba97fe41c4d44619b5e6beff Reviewed-on: https://cl.tvl.fyi/c/depot/+/9739 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2023-10-14 r/6808 refactor(tvix/nix-compat/derivation): fod_digest return [u8; 32]Florian Klink1-4/+4
This is of known length. Change-Id: Iba48ccc486d5bf9e38ec1a2da6e7b80997d2c6ca Reviewed-on: https://cl.tvl.fyi/c/depot/+/9723 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-10-14 r/6807 refactor(tvix/nix-compat): make NixHash an enum with fixed-len bytesFlorian Klink1-7/+3
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
2023-08-20 r/6512 refactor(tvix/nix-compat/nixhash): validate digest lengthsFlorian Klink1-1/+7
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
2023-07-31 r/6457 refactor(tvix/nix-compat): use local write::*;Florian Klink1-15/+17
Change-Id: I43cc1d5b3419255f815490b2e10f05db19e3bffc Reviewed-on: https://cl.tvl.fyi/c/depot/+/9000 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-07-31 r/6454 refactor(tvix/nix-compat/derivation): use writer.write_allFlorian Klink1-1/+1
This is more concise than a io::copy of a Cursor to bytes, and we have everything to be written in memory. Change-Id: I81f34666aa61aef4e16b33423ce4a69c3781efc3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8997 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2023-07-31 r/6452 refactor(tvix/derivation): move comma writing business upFlorian Klink1-0/+12
write_input_derivations shouldn't need to write a comma to separate it from the previous output from write_outputs. This is better placed in the function calling all of these helper functions. Change-Id: I9ccc440e4665b52369ef39e75151b9a29469ce48 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8995 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-07-31 r/6450 refactor(tvix/nix-compat/derivation): simplifyFlorian Klink1-2/+3
Let the escape function only take care of string escaping, not quoting. Let write_array_elements always quote and escape strings it consumes. Move the business of writing additional wrapping characters around it to the caller. Change-Id: Ib8dea69c409561b49862c531ba5a3fe6c2f061f8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8993 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-07-31 r/6449 refactor(tvix/nix-compat): support non-unicode DerivationsFlorian Klink1-14/+17
Derivations can have non-unicode strings in their env values, so the ATerm representations are not necessarily String anymore, but Vec<u8>. Change-Id: Ic23839471eb7f68d9c3c30667c878830946b6607 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8990 Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de>
2023-07-21 r/6432 feat(tvix/nix-compat): fold NameError into ErrorFlorian Klink1-1/+1
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 Klink1-8/+6
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 Ericson1-56/+36
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
2023-03-30 r/6060 refactor(tvix/nix-compat): move build_store_path out of derivationFlorian Klink1-14/+14
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
2023-03-30 r/6058 refactor(tvix/nix-compat): drop is_derivation in build_store_pathFlorian Klink1-4/+4
This only added a suffix to the input argument, if build_store_path was building the path of a Derivation. As we need to also add the `.drv` suffix to the name we pass into text_hash_string inside calculate_derivation_path, we can simply add the suffix there and drop the parameter from build_store_path. Change-Id: Icd5343dd1458f112b9296b389e81ce2ebdd16a9f Reviewed-on: https://cl.tvl.fyi/c/depot/+/8365 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-03-30 r/6057 refactor(tvix/nix-compat): add text_hash_string functionFlorian Klink1-35/+11
Use it to calculate the text_hash_string, which is then used in the calculate_derivation_path and path_with_references functions. Relates to b/263. Change-Id: I7478825e2a23a11224212fea5e3fd06daa97d5e5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8364 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-03-15 r/6012 refactor(tvix/nix-compat): remove get_fixed_output() funcFlorian Klink1-66/+52
The behaviour of this function is a bit unintuitive, and cl/8310 already inlined the other consumer of it. Rewrite the last consumer of the function, so we can drop it. Change-Id: I59c8486037ce3f777667d1d9e4f4a9316d5a0cb9 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8311 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2023-03-15 r/6011 refactor(tvix/nix-compat): simplify fingerprint calculationFlorian Klink1-76/+54
Instead of having two very similar match branches for the FOD and non- FOD case, detect the FOD case while looping over all outputs. In the case of anything other than recursive sha256 FODs, the fingerprint and output path calculation is exactly the same. Change-Id: Ieb6995653d008766e595cf29d7cd4fb1334e33dd Reviewed-on: https://cl.tvl.fyi/c/depot/+/8310 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de>
2023-03-15 r/6009 refactor(tvix/nix-compat): -derivation::Hash, +NixHashFlorian Klink1-30/+37
This stops using our own custom Hash structure, which was mostly only used because we had to parse the JSON representation somehow. Since cl/8217, there's a `NixHash` struct, which is better suited to hold this data. Converting the format requires a bit of serde labor though, but that only really matters when interacting with JSON representations (which we mostly don't). Change-Id: Idc5ee511e36e6726c71f66face8300a441b0bf4c Reviewed-on: https://cl.tvl.fyi/c/depot/+/8304 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2023-03-14 r/5999 refactor(tvix/nix-compat): remove manual mapFlorian Klink1-8/+6
Change-Id: I1652e24c9be28112d98683de2d2db51dc46001ed Reviewed-on: https://cl.tvl.fyi/c/depot/+/8302 Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-03-14 r/5997 fix(tvix/store/derivation): fix commentFlorian Klink1-1/+1
The digest is encoded in LOWERHEX here, not nixbase32. Change-Id: I8e14742f0135966424073bfdb93ada8cd7bd52e2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8300 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su>
2023-03-14 r/5995 refactor(tvix/nix-compat): replace calculate_drv_replacement_strFlorian Klink1-30/+44
Call this function derivation_or_fod_hash, and return a NixHash. This is more in line with how cppnix calls this, and allows using to_nix_hash_string() in some places. Change-Id: Iebf5355f08ed5c9a044844739350f829f874f0ce Reviewed-on: https://cl.tvl.fyi/c/depot/+/8293 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-03-04 r/5882 feat(tvix/nix-compat/derivation): make use of NixPath in some placesFlorian Klink1-4/+9
Some of these strings are actually just the nix hash representation of the hash calculated earlier. There's another one passed around via calculate_drv_replacement_str, but that's left for a followup. Change-Id: Id99a2a926a980d679eb49c34ee6a36bf224699b0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8218 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de>
2023-02-01 r/5809 feat(tvix/nix-compat/derivation): Display -> to_aterm_string()Florian Klink1-9/+17
Instead of implementing `std::fmt::Display for Derivation` and relying on the `to_string` method, introduce a `to_aterm_string()` method, which does the same thing, but makes it clearer what we're producing, rather than just calling `to_string()``. Change-Id: I21823de9096a0f2c2eb6f4591e48c1aa9fd94161 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7998 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-02-01 r/5805 refactor(tvix/nix-compat/derivation): remove module inceptionFlorian Klink1-3/+278
The module `src/derivation/derivation.rs` is a sign of module inception. Move the Derivation struct definiton up into `src/derivation/mod.rs`, and some of the helpers in a `util.rs`. Change-Id: Ib24a5f8a27bdd45df8b1fa2b3482a79b33cab8d5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7997 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de>
2023-01-31 r/5791 refactor(tvix/nix-compat): absorb //tvix/derivationFlorian Klink1-0/+15
Put this in its src/derivation. Change-Id: Ic047ab1c2da555a833ee454e10ef60c77537b617 Reviewed-on: https://cl.tvl.fyi/c/depot/+/7967 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de>