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2023-09-18 r/6606 refactor(tvix/store/blobsvc): make BlobStore asyncFlorian Klink1-7/+8
We previously kept the trait of a BlobService sync. This however had some annoying consequences: - It became more and more complicated to track when we're in a context with an async runtime in the context or not, producing bugs like https://b.tvl.fyi/issues/304 - The sync trait shielded away async clients from async worloads, requiring manual block_on code inside the gRPC client code, and spawn_blocking calls in consumers of the trait, even if they were async (like the gRPC server) - We had to write our own custom glue code (SyncReadIntoAsyncRead) to convert a sync io::Read into a tokio::io::AsyncRead, which already existed in tokio internally, but upstream ia hesitant to expose. This now makes the BlobService trait async (via the async_trait macro, like we already do in various gRPC parts), and replaces the sync readers and writers with their async counterparts. Tests interacting with a BlobService now need to have an async runtime available, the easiest way for this is to mark the test functions with the tokio::test macro, allowing us to directly .await in the test function. In places where we don't have an async runtime available from context (like tvix-cli), we can pass one down explicitly. Now that we don't provide a sync interface anymore, the (sync) FUSE library now holds a pointer to a tokio runtime handle, and needs to at least have 2 threads available when talking to a blob service (which is why some of the tests now use the multi_thread flavor). The FUSE tests got a bit more verbose, as we couldn't use the setup_and_mount function accepting a callback anymore. We can hopefully move some of the test fixture setup to rstest in the future to make this less repetitive. Co-Authored-By: Connor Brewster <cbrewster@hey.com> Change-Id: Ia0501b606e32c852d0108de9c9016b21c94a3c05 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9329 Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-07-22 r/6439 feat(tvix/store/proto): use Bytes instead of Vec<u8>Florian Klink2-4/+4
Makes use of https://github.com/tokio-rs/prost/pull/341, which makes our bytes field cheaper to clone. It's a bit annoying to configure due to https://github.com/hyperium/tonic/issues/908, but the workaround does get the job done. Change-Id: I25714600b041bb5432d3adf5859b151e72b12778 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8975 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de>
2023-07-21 r/6437 feat(tvix/store/digests): use bytes::Bytes instead of Vec<u8>Florian Klink1-4/+6
This will save us some copies, because a clone will simply create an additional pointer to the same data. Change-Id: I017a5d6b4c85a861b5541ebad2858ad4fbf8e8fa Reviewed-on: https://cl.tvl.fyi/c/depot/+/8978 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-07-21 r/6436 refactor(tvix/store): use bytes for node names and symlink targetsFlorian Klink1-6/+6
Some paths might use names that are not valid UTF-8. We should be able to represent them. We don't actually need to touch the PathInfo structures, as they need to represent StorePaths, which come with their own harder restrictions, which can't encode non-UTF8 data. While this doesn't change any of the wire format of the gRPC messages, it does however change the interface of tvix_eval::EvalIO - its read_dir() method does now return a list of Vec<u8>, rather than SmolStr. Maybe this should be OsString instead? Change-Id: I821016d9a58ec441ee081b0b9f01c9240723af0b Reviewed-on: https://cl.tvl.fyi/c/depot/+/8974 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2023-06-19 r/6335 docs(tvix/store): correct some cargo doc warningsFlorian Klink1-1/+1
Change-Id: I5053e3f7dcea01e75baa933e4986396583ff22e8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8831 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de>
2023-06-12 r/6273 refactor(tvix/store): use Arc instead of BoxFlorian Klink1-8/+11
This allows us to blob services without closing them before putting them in a box. We currently need to use Arc<_>, not Rc<_>, because the GRPC wrappers require Sync. Change-Id: I679c5f06b62304f5b0456cfefe25a0a881de7c84 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8738 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de>
2023-06-12 r/6272 refactor(tvix/store): use Box<dyn DirectoryService>Florian Klink1-6/+6
Once we support configuring services at runtime, we don't know what DirectoryService we're using at compile time. This also means, we can't explicitly use the is_closed method from GRPCPutter, without making it part of the DirectoryPutter itself. Change-Id: Icd2a1ec4fc5649a6cd15c9cc7db4c2b473630431 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8727 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-06-12 r/6271 feat(tvix/store/pathinfosvc): add calculate_nar methodFlorian Klink2-3/+3
Putting this in the PathInfoService trait makes much more sense, we can have direct control over where/how to cache the results in the implementation. This now requires each PathInfoService to hold pointers to BlobService and DirectoryService. Change-Id: I4faae780d43eae4beeb57bd5e190e6d1a5d3314e Reviewed-on: https://cl.tvl.fyi/c/depot/+/8724 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su>
2023-06-12 r/6270 refactor(tvix/src/nar): drop NARCalculationServiceFlorian Klink4-219/+116
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 Klink2-13/+9
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>
2023-05-24 r/6184 feat(tvix/store/nar): add GRPCNARCalculationServiceFlorian Klink2-0/+71
This asks a remote tvix-store for the nar size and digest of a given root node. Change-Id: If9f916d9bfc5f8dc3166e2c6c1671c0f0124d1c1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8611 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-05-23 r/6181 refactor(tvix/store/nar): clippyFlorian Klink1-1/+1
Change-Id: I0d864fd1b9248fe4d5c88e3d8fa396ea759fea09 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8616 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2023-05-23 r/6178 refactor(tvix/store/blobsvc): move from Vec<u8> to B3DigestFlorian Klink1-14/+19
Change-Id: I809bab75221f81b6023cfe75c2fe9e589c1e9192 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8605 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-05-23 r/6177 refactor(tvix/store/directorysvc): move from Vec<u8> to B3DigestFlorian Klink3-28/+16
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 Klink2-63/+28
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>
2023-05-10 r/6130 fix(tvix/store/nar/renderer): handle digest errorFlorian Klink1-3/+7
Change-Id: I183580732e1dd33ed079a2593097ec790def0a55 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8554 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2023-03-17 r/6019 refactor(tvix/store/nar): pass in &proto::node::NodeFlorian Klink3-15/+23
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>
2023-03-16 r/6014 refactor(tvix/store/directorysvc): use [u8; 32] instead of Vec<u8>Florian Klink1-5/+8
Also, simplify the trait interface, only allowing lookups of Directory objects by their digest. Change-Id: I6eec28a8cb0557bed9b69df8b8ff99a5e0f8fe35 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8313 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su>
2023-03-10 r/5918 feat(tvix/store): add NARCalculationService trait and implFlorian Klink2-0/+61
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
2023-03-10 r/5917 feat(tvix/store): validate blob size in NARRendererFlorian Klink2-0/+14
Make sure the blob size in the current proto node matches what we get back from the blob backend. Change-Id: I939fa18f37c7bc86ada8a495c7be622e69ec47f8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8129 Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-03-10 r/5915 chore(tvix/store): move NAR rendering logic into Renderer structFlorian Klink2-0/+158
This moves the logic rendering NARs to a struct using the previously introduced, more granular BlobService, ChunkService and DirectoryService. Instead of passing them around to the helper functions, they're kept as members of a struct. Remove the async invocations in the nar_renderer tests, there's nothing async in here. Change-Id: Ic6d24aaad68a1fda46ce29f2cdb5f7b87f481d5c Reviewed-on: https://cl.tvl.fyi/c/depot/+/8095 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
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