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path: root/tvix/store/src/nar/non_caching_calculation_service.rs
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2023-06-12 r/6270 refactor(tvix/src/nar): drop NARCalculationServiceFlorian Klink1-34/+0
There's only one way to calculate NAR files, by walking through them. Things like caching such replies should be done closer to where we use these, composing NARCalculationService doesn't actually give us much. Instead, expose two functions, `nar::calculate_size_and_sha256` and `nar::writer_nar`, the latter writing NAR to a writer, the former using write_nar to only keeping the NAR size and digest. Change-Id: Ie5d2cfea35470fdbb5cbf9da1136b0cdf0250266 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8723 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de>
2023-06-12 r/6269 feat(tvix/store): eliminate generics in BlobStoreFlorian Klink1-8/+5
To construct various stores at runtime, we need to eliminate associated types from the BlobService trait, and return Box<dyn …> instead of specific types. This also means we can't consume self in the close() method, so everything we write to is put in an Option<>, and during the first close we take from there. Change-Id: Ia523b6ab2f2a5276f51cb5d17e81a5925bce69b6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8647 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2023-05-23 r/6177 refactor(tvix/store/directorysvc): move from Vec<u8> to B3DigestFlorian Klink1-8/+2
This introduces a new struct, B3Digest, which internally holds a Vec<u8>, but only allows construction with 32 bytes. It also implements display, which will print the base64 representation. This should reduce some boilerplate when parsing Vec<u8>. Change-Id: Ia91aa40cb691916773abc8f93e6ed79a5fd34863 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8592 Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-05-18 r/6165 refactor(tvix/store): bump CalculateNARResponse.nar_size to u64Florian Klink1-1/+1
Change-Id: I5f41981820363a5eb9982c3d19830916207c62cc Reviewed-on: https://cl.tvl.fyi/c/depot/+/8591 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2023-05-11 r/6133 refactor(tvix/store): remove ChunkServiceFlorian Klink1-14/+7
Whether chunking is involved or not, is an implementation detail of each Blobstore. Consumers of a whole blob shouldn't need to worry about that. It currently is not visible in the gRPC interface either. It shouldn't bleed into everything. Let the BlobService trait provide `open_read` and `open_write` methods, which return handles providing io::Read or io::Write, and leave the details up to the implementation. This means, our custom BlobReader module can go away, and all the chunking bits in there, too. In the future, we might still want to add more chunking-aware syncing, but as a syncing strategy some stores can expose, not as a fundamental protocol component. This currently needs "SyncReadIntoAsyncRead", taken and vendored in from https://github.com/tokio-rs/tokio/pull/5669. It provides a AsyncRead for a sync Read, which is necessary to connect our (sync) BlobReader interface to a GRPC server implementation. As an alternative, we could also make the BlobReader itself async, and let consumers of the trait (EvalIO) deal with the async-ness, but this is less of a change for now. In terms of vendoring, I initially tried to move our tokio crate to these commits, but ended up in version incompatibilities, so let's vendor it in for now. Change-Id: I5969ebbc4c0e1ceece47981be3b9e7cfb3f59ad0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8551 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2023-03-17 r/6019 refactor(tvix/store/nar): pass in &proto::node::NodeFlorian Klink1-1/+1
Passing in a &proto::node::Node into all this allows us consumers to keep ownership of the proto::node::Node. Change-Id: I44882a86c46826b06a8a8a0b24c18adfc7052662 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8316 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de>
2023-03-10 r/5918 feat(tvix/store): add NARCalculationService trait and implFlorian Klink1-0/+50
This adds a NARCalculationService trait, which will take a root node, and provide a proto::CalculateNarResponse in return. It also adds a NonCachingNARCalculationService implementation, that will simply always render the NAR in memory to calculate the size and sha256, without any caching. Change-Id: Id1ffb18559212fa6001f70f2634bbc3dfd0aa343 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8096 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI