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2023-12-31 r/7292 feat(tvix/cli): allow configuring different servicesFlorian Klink1-14/+53
At some point, tvix-cli needs to talk to the outside world to persist things into a real store. Introduce the same CLI options to configure {Blob,Directory,PathInfo}Service URLs. We need to be a bit careful with how we set up stores, and make this separate from setting up TvixStoreIO, as it's holding a Rc<RefCell<KnonPath>> which not Send. At some point, we might make this a Arc<RwLock<_>> later anyways, and then this can be simplified a bit, but for now, this is sufficient. Change-Id: I87d84ca3a10ce947e194ff985073791469773f35 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10474 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2023-12-31 r/7289 refactor(tvix/eval): remove code and location from structFlorian Klink1-4/+4
Instead, it's passed in the evaluate/compile_only functions, which feels more naturally. It lets us set up the Evaluation struct long before we actually feed it with data to evaluate. Now that Evaluation::new() would be accepting an empty list of arguments, we can simply implement Default, making things a bit more idiomatic. Change-Id: I4369658634909a0c504fdffa18242a130daa0239 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10475 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de>
2023-12-12 r/7171 feat(tvix/cli): add benchmark for bf286a54bcAdam Joseph1-0/+2
cl/7558 used this expression as a benchmark to justify the introduction of LightSpan::Delayed: builtins.length (builtins.attrNames (import ${pkgs.path} {})) Let's add it as a benchmark case so it can be referenced easily. Benchmark: {"nixpkgs-attrnames":{"kbytes":"233824","system":"0.32","user":"2.02"}} Change-Id: Idb6c69ddd284605dd3b5fd9ac5c79a69b9a470b7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10253 Autosubmit: Adam Joseph <adam@westernsemico.com> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-12-12 r/7163 feat(tvix/cli): add macrobenchmarkAdam Joseph1-1/+61
This commit adds a simple MVP benchmark, built on our nix infrastructure instead of cargo. It simply runs `tvix-eval` inside of GNU time, and prints the three essential statistics in a short JSON blob. You can run the benchmark with a simple `nix run`, like: nix run -f . tvix.cli.benchmark-hello nix run -f . tvix.cli.benchmark-firefox nix run -f . tvix.cli.benchmark-cross-firefox Currently these blobs are stored only in the CI logs, which I'm sure get garbage-collected at some point. We should be putting them in the git trailers, but that can wait for a future CL. I tried using `cargo bench` for this but found it incredibly frustrating. Maybe I'm doing it wrong. It seems to be designed for microbenchmarks only, and very hard to control. It kept building all sorts of unnecessary stuff (like the tests), and unlike crate2nix it was doing all the builds on only a single machine instead of using more than one machine. Worse, for that single machine it kept picking my laptop instead of my fast servers! It seems excessively cargo-flavored for such a straightforward task. Benchmark: {"hello.outPath":{"kbytes":"244736","system":"0.36","user":"2.76"}} Benchmark: {"firefox.outPath":{"kbytes":"1506736","system":"2.38","user":"32.01"}} Benchmark: {"pkgsCross.aarch64-multiplatform.firefox.outPath":{"kbytes":"11334548","system":"10.70","user":"107.07"}} Change-Id: I85bc046ec551360284d7ecfc81a03914f0085909 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10216 Autosubmit: Adam Joseph <adam@westernsemico.com> Reviewed-by: grfn <grfn@gws.fyi> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-11-04 r/6939 refactor(tvix/glue): move builtins into separate directoryFlorian Klink1-1/+1
Change-Id: I25b7197458dbfbde8623545dc0a0286eb2744f10 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9911 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-11-04 r/6938 refactor(tvix/glue): move nix_path handling to helper in tvix-glueFlorian Klink1-9/+2
Change-Id: I2327560c4cf0d3f90e253e3c2f47cb29c762461e Reviewed-on: https://cl.tvl.fyi/c/depot/+/9910 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-11-04 r/6936 refactor(tvix): move tvix glue code into glue crateFlorian Klink11-1475/+8
There's various bits and pieces in tvix-cli that use both the store and evaluator, as well as nix-compat. For example, builtins.derivation, as well as the reference scanning implementation. This "glue code" currently isn't accessible from anywhere else, but it'd be very useful if it were. Move it out into a `glue` crate, and make `tvix-cli` a consumer of it. All the KnownPaths setup and passing around, as well as NIX_PATH handling is also something that should probably be moved into the glue crate as well, but that's something left for a future CL. Change-Id: I080ed3d1825ab23790666486840f301f00856277 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9908 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-10-27 r/6888 refactor(nix-compat/store_path): make digest and name privateedef1-4/+4
Change-Id: I62cbe883afcf3dd0c8d4de0e3b845069eb750c97 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9855 Reviewed-by: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-10-23 r/6876 fix(tvix/cli/derivation): fix populate_output_configurationFlorian Klink1-302/+81
The `if let` wasn't matching `outputHashAlgo` being unset, and didn't populate it in that case. Port the remaining commented-out testcases over to nix-lang based tests. Change-Id: I140b5643b9ed9d29f9522ec65d98d0b12262d728 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9825 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2023-10-23 r/6875 refactor(tvix/cli): rename `a` to `algo_str`Florian Klink1-2/+3
Change-Id: I65d307126647841b50db008c21c155441a6b6cb5 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9818 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2023-10-23 r/6874 test(tvix/cli/derivation): add test cases for output path calcFlorian Klink2-0/+42
Get some test coverage with some calls to builtins.derivation. The expected output paths were calculated with Nix. Change-Id: I2ce205ea5244e8ef939d9cacb033283fc6f15d17 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9817 Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-10-23 r/6873 refactor(tvix/cli): move evaluator instantiation to helperFlorian Klink1-30/+29
Have a private `eval` function in the test module that returns an EvaluationResult, and migrate the existing tests over to use it, rather than repeating itself. Change-Id: I879987700c8507248c644ef03b62a8cb8e308139 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9816 Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-10-23 r/6871 refactor(tvix/nix-compat): rename NixHashWithMode -> CAHashFlorian Klink1-5/+5
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>
2023-10-22 r/6870 feat(tvix/store/protos): add CA fieldFlorian Klink1-2/+4
This adds support to represent the `CA` field found in some .narinfo files. As `deriver`, it's also a subfield of the `narinfo` field. Extending nix-compat with a more accessible data structure that can take care of formatting, as well as writing validation functions in Rust + Golang, and integrating it into nar-bridge is something for a followup CL. Change-Id: I71e9c30957bcd03051a491aa54d7baac25b6dd2d Reviewed-on: https://cl.tvl.fyi/c/depot/+/9795 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-10-22 r/6869 refactor(tvix/store): move deriver field into narinfo submessageFlorian Klink1-1/+1
This information is present in the .narinfo files, it should have gone there. Change-Id: Ib43d0cf30c2795bf1fe77c46646174353ade0458 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9794 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI
2023-10-16 r/6827 refactor(tvix/cli): clippyFlorian Klink1-1/+1
Change-Id: I35a28a320c890f62e6a76641dfdf99e33e839c02 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9749 Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de>
2023-10-14 r/6805 feat(tvix/store/protos): add Deriver field to PathInfoFlorian Klink1-0/+1
This uses the newly introduced StorePath message type to add a Deriver field to the PathInfo message. Support for validation is added to both the golang and rust implementation. This includes extending unit tests. Change-Id: Ifc3eb3263fa25b9eec260db354cd74234c40af7e Reviewed-on: https://cl.tvl.fyi/c/depot/+/9647 Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI
2023-09-26 r/6659 fix(tvix/cli): don't enable default features for tvix-storeFlorian Klink1-1/+1
These enable fuse and virtiofs features, which fail to build on MacOS. tvix-cli needs neither of these to be built, so we can disable them. Fixes b/240 (tvix-cli build on Darwin) Change-Id: I991d947f31d0185aedd1c8a341f714f4eedd03c3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9474 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-09-24 r/6650 fix(tvix/eval): fix b/281 by adding Value::CatchableAdam Joseph1-41/+75
This commit makes catchable errors a variant of Value. The main downside of this approach is that we lose the ability to use Rust's `?` syntax for propagating catchable errors. Change-Id: Ibe89438d8a70dcec29e016df692b5bf88a5cad13 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9289 Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: Adam Joseph <adam@westernsemico.com> Tested-by: BuildkiteCI
2023-09-23 r/6641 feat(tvix/cli/derivation): reject derivations with empty namesFlorian Klink1-0/+27
As shown in the previous CLs, we can very well have store paths starting with periods, but we can't have derivations with an empty name: ``` nix-build -E 'derivation { name = ""; builder = "/bin/sh"; system = "x86_64-linux"; }' error: store path 'nr7i5pf18hw2zg487vkdyrbasdqylfcj-' has an empty name ``` I'm currently using ErrorKind::Abort here, because we don't have a Derivation- related error in tvix-eval (and probably don't want to). Change-Id: I0e9743cee98dbfa69e9caa2a58352176270f15bd Reviewed-on: https://cl.tvl.fyi/c/depot/+/9448 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2023-09-23 r/6639 feat(tvix/cli): add back a derivation testFlorian Klink1-0/+30
Setting up the evaluator is a bit annoying currently, might get easier with b/262, but it's better than no tests on that granularity at all. Change-Id: Ie8c61466768f37f4efbc19ad497d37f87ddc2044 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9446 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-09-22 r/6629 refactor(tvix): move castore into tvix-castore crateFlorian Klink3-6/+10
This splits the pure content-addressed layers from tvix-store into a `castore` crate, and only leaves PathInfo related things, as well as the CLI entrypoint in the tvix-store crate. Notable changes: - `fixtures` and `utils` had to be moved out of the `test` cfg, so they can be imported from tvix-store. - Some ad-hoc fixtures in the test were moved to proper fixtures in the same step. - The protos are now created by a (more static) recipe in the protos/ directory. The (now two) golang targets are commented out, as it's not possible to update them properly in the same CL. This will be done by a followup CL once this is merged (and whitby deployed) Bug: https://b.tvl.fyi/issues/301 Change-Id: I8d675d4bf1fb697eb7d479747c1b1e3635718107 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9370 Reviewed-by: tazjin <tazjin@tvl.su> Reviewed-by: flokli <flokli@flokli.de> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-09-22 r/6628 docs(tvix/castore): rename traverse_to -> descend_toFlorian Klink1-1/+1
With the move of this code out into castore it has become apparent this is a general descent inside the castore. Concerns like making sure the whole Directory closure has been fetched/is fetched initially is nothing this layer needs to worry about. We can handle this during substitution of a new PathInfo, once there's store composition. Closes b/270. Change-Id: I661ed08e54bc81478e032cfb9abeb23e5b337fbe Reviewed-on: https://cl.tvl.fyi/c/depot/+/9373 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-09-22 r/6627 chore(tvix): remove some unused crate dependenciesFlorian Klink1-3/+0
Change-Id: I31b0e7be3a2ebc268c6f4045ba282e8fb1c72a64 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9375 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-09-21 r/6623 refactor(tvix/store): Asyncify PathInfoService and DirectoryServiceConnor Brewster1-31/+39
We've decided to asyncify all of the services to reduce some of the pains going back and for between sync<->async. The end goal will be for all the tvix-store internals to be async and then expose a sync interface for things like tvix eval io. Change-Id: I97c71f8db1d05a38bd8f625df5087d565705d52d Reviewed-on: https://cl.tvl.fyi/c/depot/+/9369 Autosubmit: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de>
2023-09-18 r/6606 refactor(tvix/store/blobsvc): make BlobStore asyncFlorian Klink3-77/+108
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>
2023-09-04 r/6550 refactor(tvix/{cli,store}): move TvixStoreIO to tvix-cli crateFlorian Klink4-4/+330
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/6498 refactor(tvix/cli): cargo clippyFlorian Klink2-2/+1
Change-Id: I723bc9b29733f5ee4e3094b92696fbdeb4b15a33 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9094 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-08-20 r/6496 refactor(tvix/cli): stop parsing NixHash twiceFlorian Klink1-6/+2
We already have the parsed output_hash from above, no need to construct it again. Change-Id: Ie6d924ab446137c25c29fbeaf671aa7e5418262d Reviewed-on: https://cl.tvl.fyi/c/depot/+/9110 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2023-08-14 r/6483 chore(tvix/cli): delete unused NixCompatIO codesterni2-122/+0
Change-Id: Icb91b102208fea512e04383ce9d65b0681af18ab Reviewed-on: https://cl.tvl.fyi/c/depot/+/9079 Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de>
2023-07-31 r/6453 refactor(tvix/cli/refscan): use wu-manber crate with &[u8] supportFlorian Klink2-24/+10
PR'ed at https://github.com/tvlfyi/wu-manber/pull/1, and now merged. Change-Id: I8c71e359196396a1d42a3ea2ab7ac15b137b2db0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8992 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-07-31 r/6449 refactor(tvix/nix-compat): support non-unicode DerivationsFlorian Klink2-4/+18
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>
2023-07-31 r/6447 docs(tvix/cli/refscan): fix commentFlorian Klink1-2/+2
The comment still mentions Aho-Corasick, which isn't correct. Change-Id: I846a2ca9ea7075c2456ca6ef04a132ff6161227a Reviewed-on: https://cl.tvl.fyi/c/depot/+/8991 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2023-07-22 r/6439 feat(tvix/store/proto): use Bytes instead of Vec<u8>Florian Klink3-2/+3
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/6436 refactor(tvix/store): use bytes for node names and symlink targetsFlorian Klink2-4/+2
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
2023-06-22 r/6344 feat(tvix/eval): allow extending builtins outside of tvix_evalEvgeny Zemtsov1-1/+1
The change allows applications that use tvix_serde for parsing nix-based configuration to extend the language with domain-specific set of features. Change-Id: Ia86612308a167c456ecf03e93fe0fbae55b876a6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8848 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-06-20 r/6336 fix(tvix/eval): only finalise formal arguments if defaultingsterni1-3/+2
When dealing with a formal argument in a function argument pattern that has a default expression, there are two different things that can happen at runtime: Either we select its value from the passed attribute successfully or we need to use the default expression. Both of these may be thunks and both of these may need finalisers. However, in the former case this is taken care of elsewhere, the value will always be finalised already if necessary. In the latter case we may need to finalise the thunk resulting from the default expression. However, the thunk corresponding to the expression may never end up in the local's stack slot. Since finalisation goes by stack slot (and not constants), we need to prevent a case where we don't fall back to the default expression, but finalise anyways. Previously, we worked around this by making `OpFinalise` ignore non-thunks. Since finalisation of already evaluated thunks still crashed, the faulty compilation of function pattern arguments could still cause a crash. As a new approach, we reinstate the old behavior of `OpFinalise` to crash whenever encountering something that is either not a thunk or doesn't need finalisation. This can also help catching (similar) miscompilations in the future. To then prevent the crash, we need to track whether we have fallen back or not at runtime. This is done using an additional phantom on the stack that holds a new `FinaliseRequest` value. When it comes to finalisation we check this value and conditionally execute `OpFinalise` based on its value. Resolves b/261 and b/265 (partially). Change-Id: Ic04fb80ec671a2ba11fa645090769c335fb7f58b Reviewed-on: https://cl.tvl.fyi/c/depot/+/8705 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: sterni <sternenseemann@systemli.org>
2023-06-12 r/6279 refactor(tvix/store/pathinfosvc): use Arc<dyn …>Florian Klink1-2/+4
This removes the use of generics, like previously done with Blob and Directory services. Change-Id: I7cc8bd1439b026c88e80c11e38aafc63c74e5e84 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8751 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su>
2023-06-12 r/6273 refactor(tvix/store): use Arc instead of BoxFlorian Klink1-11/+6
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 Klink1-3/+9
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 Klink1-1/+2
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 Klink1-11/+2
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 Klink1-2/+2
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>
2023-06-11 r/6266 fix(tvix/eval): emit only warnings on shadowed outputsLinus Heckemann2-5/+3
Unfortunately, nixpkgs has at least one case[1] where the out environment variable is shadowed -- though it doesn't cause a problem, since it's shadowed with the correct value, odd as this may be! [1]: https://github.com/NixOS/nixpkgs/blob/c7c298471676ac1c7789ab3c424fbcebecaa6791/pkgs/development/python-modules/pybind11/default.nix#L19 Change-Id: Ibf6790d2484dc9cce8e424feeb5886664d498dc3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8696 Autosubmit: tazjin <tazjin@tvl.su> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-06-10 r/6261 chore(tvix/store): add fuse featureFlorian Klink1-1/+1
This brings in fuse (via the `fuser` crate), and adds pkg-config and libfuse to the dev shell, so `cargo build` can link against it. Change-Id: I0d11607490e27d946bdf92b0b9e45f9ab644ba74 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8664 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-06-02 r/6227 fix(tvix/cli): fix refscan when no paths are referencedLinus Heckemann1-4/+21
Before, the construction of a TwoByteWM would panic when no patterns were provided, as in `tvix --expr 'builtins.toFile "snens" "soos"'`. Change-Id: I25ed498c475523aec5baf8683b23059fadabb21c Reviewed-on: https://cl.tvl.fyi/c/depot/+/8697 Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-05-29 r/6214 fix(tvix/eval): thunk unary operator applicationssterni1-0/+3
Unary operator applications are thunked which can easily be observed by nix-instantiate --eval -E '[ (!true) (-1) ]' Unfortunately, there are few simple expressions where this makes a difference in the end result. Thus it only cropped up when using nixpkgs for cross compilation: Here we would compile the expression !(stdenv.cc.isGNU or false) to assemble python3Minimal's passthru attribute set (at least this seems to be the most likely explanation from the backtraces I've studied). This means that an unthunked <stdenv.cc.isGNU or false> OpForce OpInvert would be performed in order to assemble this attribute set, causing stdenv.cc to be evaluated too early, causing an infinite recursion. Resolves b/273. It seems that having a test suite that doesn't use --strict and relies on thunks rendered as <CODE> would be beneficial for catching such issues. I've not been able to find a test case with --strict that demonstrates the problem fixed in this CL. Change-Id: I640a5827b963f5b9d0f86fa2142e75e3a6bbee78 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8654 Tested-by: BuildkiteCI Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su>
2023-05-27 r/6213 feat(tvix/cli): add --no-warnings argumentFlorian Klink1-2/+8
This will prevent tvix from printing any warnings. As a followup, we can also thread this parameter through into the evaluator itself, to prevent warnings from being constructed in first place. Change-Id: I15381396f86573484bdd1a73d09034a665638e35 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8646 Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-05-25 r/6202 refactor(tvix/eval): stop borrowing &mut selfFlorian Klink2-8/+8
This does undo cl/8571. Change-Id: Ib14b4e7404f906e346304b6113860ae811afc94a Reviewed-on: https://cl.tvl.fyi/c/depot/+/8631 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de>
2023-05-25 r/6201 refactor(tvix/cli): wrap NixCompatIO import_cache in RwLockFlorian Klink1-4/+13
This allows dropping all &mut self from the EvalIO trait signature. Change-Id: Ie127b0a459d2996636385d159fcc5f7147e74e2e Reviewed-on: https://cl.tvl.fyi/c/depot/+/8630 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de>