Commit graph

908 commits

Author SHA1 Message Date
Vincent Ambo
4350be34d1 feat(tvix/serde): handle nested data structures
Change-Id: I543fc05d31bbb9ad2edb887bce4510e9a1cdb102
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7714
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
2023-01-03 13:37:12 +00:00
Florian Klink
8e2b1de3d5 feat(tvix/store/nixpath): DIGEST_SIZE public, use more consts
Rename PATH_HASH_SIZE to DIGEST_SIZE.

It's a digest, not hash (we don't necessarily have the internal hash
state anymore), and the fact it's about (Nix)Paths is already visible
from the module name.

Also expose ENCODED_DIGEST_SIZE, so we don't need to do the calculation
inside from_string() method, and it becomes more clear this is a
constant.

Change-Id: I0e7577dd7a6e503039037b986313b214e995d826
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7725
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: jrhahn <mail.jhahn@gmail.com>
Tested-by: BuildkiteCI
2023-01-03 13:03:07 +00:00
Florian Klink
2df642231c feat(tvix/store/nixpath): expose digest and name fields
These can be accessed directly.

Change-Id: I71dc84f982820d53f319efefbed9b9055034954d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7724
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2023-01-03 13:03:07 +00:00
Florian Klink
0b56d9f21b feat(src/proto): add PathInfo.validate()
This provides validation of PathInfo messages, and ensures the output
hashes are properly parsed from the root node names.

NixPath already has a more extensive test suite for various wrong
NixPaths, so it's omitted from here.

Change-Id: I5d69118df5816daabb521ddb19d178bddd1caacf
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7684
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2023-01-03 13:03:07 +00:00
Florian Klink
ceb2c0ba89 chore(tvix/store): make importable
This allows other crates to import tvix_store.

Rename the bin crate to tvix-store-bin, to avoid having multiple crates
with the same name (https://github.com/rust-lang/cargo/issues/6313)

Change-Id: I857768d6115640dbf102e79ed03e8474090df2fe
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7728
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2023-01-03 13:03:07 +00:00
Florian Klink
d0bbc8c821 chore(tvix/store/nixbase32): address clippy
Change-Id: Ib47a55e39ed752492b9732439de5f327a7fa601e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7723
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
2023-01-03 12:06:55 +00:00
Florian Klink
ecd943ea6a chore(tvix/store/main): address clippy
Change-Id: Ie400a7109d3aa6b66153c0ab25a38abf06984cbf
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7722
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2023-01-03 12:06:54 +00:00
Vincent Ambo
90c32eec7a feat(tvix/serde): initial Nix->serde::Deserialize impl
This will make it possible fairly easily use Nix to represent
arbitrary data structures, e.g. for using Nix as a config language.

Only pure Nix (i.e. no `import` etc.) is supported for now.

Not all types, specifically no struct traversal, are implemented in
this commit.

Change-Id: I9ac91a229a0d12bf818e6e3249f3e5a691599a2c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7712
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
2023-01-02 22:24:43 +00:00
Vincent Ambo
49ee3e3b14 chore(tvix/eval): implement std::error::Error for tvix_eval::Error
This makes it easier to interface this error with other crates.

Change-Id: I4947ea6097608f8c0427fb94a819ef748d94ea4b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7711
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
2023-01-02 22:24:43 +00:00
Jürgen Hahn
31973890a9 refactor(tvix/derivation): refactor the derivation serialization
This refactors the code to serialize a derivation. The original code
has beed moved to seperate crates for better code structure.

Change-Id: I3b1a6b134428fcbc9930c330bced8ec3610cfb4c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7733
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
2023-01-02 20:55:14 +00:00
Florian Klink
319c03f634 feat(tvix/store): add logging with tracing
This uses [tracing](https://github.com/tokio-rs/tracing) for logs/
tracing.

Annotate all method handlers with an instrument macro, and warn! a
message for them being unimplemented.

Co-Authored-By: Márton Boros <martonboros@gmail.com>
Change-Id: Id42a41db33782d82abfb8dc0e49a8915000e5d89
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7665
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-30 20:25:09 +00:00
Florian Klink
0bf2b0ef11 feat(tvix/store): implement reflection
This implements grpc.reflection.v1alpha.ServerReflection, and will make tools
like evans automatically discover available services, without having to
specify the path to the .proto files client-side.

It's behind a reflection feature flag, which is enabled by default.

Change-Id: Icbcb5eb05ceede5b9952e38a2ba72eaa6fa8a437
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7435
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-30 20:25:09 +00:00
edef
51243007f6 refactor(tvix/store): make nixbase32 reversal more idiomatic
Change-Id: Ibe550f9573b0f45ee95453b50c7510e49b07c719
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7685
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
2022-12-30 16:40:17 +00:00
Jürgen Hahn
60bdf619a3 feat(tvix/store): refactor digest conversion
This refactors how the original digest type (Vec<u8>) is converted
to [u8; PATH_HASH_SIZE].

Change-Id: I9441470a3a199620fcf328f2b7c890ca6ae93bde
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7710
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
2022-12-30 16:02:38 +00:00
Florian Klink
58f5ff2c17 feat(tvix/store): initial dummy implementation
This replaces the hello world example from tvix-store with an actual
gRPC endpoint, implementing all of BlobService, DirectoryService and
PathInfoService.

All RPC methods currently respond with the unimplemented gRPC status.

Co-Authored-By: Márton Boros <martonboros@gmail.com>
Change-Id: Ieba333cca44dc1e3f2ffbe676ba7a99e672b9bfb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7664
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-30 15:21:38 +00:00
Florian Klink
d22a9c8610 chore(tvix/store/protos): more idiomatic go
Pointed out by edef in
https://cl.tvl.fyi/c/depot/+/7648/comment/4551ba4b_e89ade36/#, thanks!

Change-Id: I6b0d317bb0210521622483cdf4cb557bc637a100
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7709
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-30 15:18:02 +00:00
Florian Klink
4036740ca7 feat(tvix/store): parameterise validate_digest error
Similar to cl/7682, we also want to make that error configurable.

Change-Id: I64f1a4570b3d75af4741abe10c2855959766e107
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7708
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-30 14:43:19 +00:00
Jürgen Hahn
5520bf3682 feat(tvix/store): add nixpath
This implements the NixPath structure. NixPath allow to parse a string to a nix path. If the parsing fails, a DecodeError will be raised.

Change-Id: I28363cdcfb27f04bf21a11c0d130b461667e3720
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7706
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-30 14:39:59 +00:00
Florian Klink
357c4d4836 feat(tvix/store): add nixbase32 mod
This implements the nix-specific base32 encoding and decoding, exposing
a subset of the API that the data-encoding crate provides.

Nix uses a custom alphabet, no padding, and encodes bytes in reverse
order. The latter one is the reason we can't just use the data-encoding
crate directly.

Three odd corner case tests ported over from go-nix failed. We opened
b/235 to further investigate.

Change-Id: I73fab6ddd67177d882e4c3f2b48761c95853d558
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7683
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
2022-12-30 13:31:46 +00:00
Florian Klink
5ba47a2bc3 feat(tvix/store): parameterise validate_node_name error
We'll be using validate_node_name in other places in a bit, where
returning a ValidateDirectoryError is not appropriate.

Accept a function mapping a string to error as a second argument, and
pass ValidateDirectoryError::InvalidName at the current call sites.

Change-Id: I45cbb0deb4763061ad912c6b18a112c727795a17
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7682
Tested-by: BuildkiteCI
Reviewed-by: jrhahn <mail.jhahn@gmail.com>
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: flokli <flokli@flokli.de>
2022-12-29 21:55:45 +00:00
Florian Klink
e97a429e73 fix(tvix/store): fix typo
Change-Id: I351a2bd4e007443aef1b97f50aecffc095ac60b1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7681
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: jrhahn <mail.jhahn@gmail.com>
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-29 21:51:43 +00:00
Vincent Ambo
86361f0f4a refactor(tvix/eval): remove extra Rc<..> around Value::Attrs
The `im::OrdMap` is already small and cheap to copy while sharing
memory, so this is not required anymore.

Only the `KV` variant may have slightly larger content, but in
practice this doesn't seem to make a difference when comparing the two
variants and this one is less complicated.

Change-Id: I64a563b209a2444125653777551373cb2989ca7d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7677
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
2022-12-29 17:44:56 +00:00
Vincent Ambo
91465dc78e refactor(tvix/eval): persistent, memory-sharing OrdMap for NixAttrs
This uses the `im::OrdMap` for `NixAttrs` to enable sharing of memory
between different iterations of a map.

This slightly speeds up eval, but not significantly. Future work might
include benchmarking whether using a `HashMap` and only ordering in
cases where order is actually required would help.

This switches to a fork of `im` that fixes some bugs with its OrdMap
implementation.

Change-Id: I2f6a5ff471b6d508c1e8a98b13f889f49c0d9537
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7676
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
2022-12-29 17:44:56 +00:00
Vincent Ambo
610c44ec1e refactor(tvix/eval): use im::Vector directly where possible
The conversion from im::Vector -> Vec is cheaper for NixList
construction (of course), so where possible we should make use of
that.

This updates most builtins dealing with lists to use Vector directly,
and marks the function constructing NixList from Vec as deprecated so
that we get appropriate warnings in places where it's still in use.

These places are currently inside of JSON serialisation logic which is
in flux right now, so lets leave them as-is until it's stabilised.

Change-Id: I037f12a2800f2576db4d9526bd935efd079163f0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7671
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
2022-12-29 16:33:14 +00:00
Jürgen Hahn
bb185b2c6e feat(tvix/derivation): serialize Nix Derivation
This adds a Derivation structure and allows to write it to a structure that implements std::fmt:Write.
The implementation is based on the go-nix version.

Change-Id: Ib54e1202b5c67f5d206b21bc109a751e971064cf
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7659
Reviewed-by: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-29 14:38:45 +00:00
Vincent Ambo
5d73c06b1a refactor(tvix/eval): use im::Vector for NixList representation
This is a persistent, structurally sharing data structure which is
more efficient in some of our use-cases. I have verified the
efficiency improvement using `hyperfine` repeatedly over expressions
on nixpkgs.

Lists are not the most performance-critical structure in Nix (that
would be attribute sets), but we can already see a small (~5-10%)
improvement.

Note that there are a handful of cases where we still go via `Vec`
that need to be fixed, most notable for `builtins.sort` which can not
currently be implemented directly using `im::Vector` because of a
restrictive type bound.

Change-Id: I237cc50cbd7629a046e5a5e4601fbb40355e551d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7670
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
2022-12-29 12:27:59 +00:00
Florian Klink
6ab8320f07 chore(tvix/store): address clippy warnings
The only warnings left are unused warnings, but that'll change once we
have a real implementation, and not just tests.

Change-Id: I28912281b5e66735be37e999cc8ef4b8b09028fb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7669
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-29 12:07:57 +00:00
Florian Klink
b0879917d4 chore(tvix/store): trim Cargo.toml
lazy_static is only used in tests, and anyhow isn't used at all (yet).

This can be dropped.

Change-Id: Ic41ff3f9bb93cfa600c3485e85464f78a3976504
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7668
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-29 12:07:57 +00:00
Florian Klink
ff71366f41 chore(tvix/store): move tests into separate file
Move them from the bottom of src/proto.rs to its own src/tests/mod.rs.

Also drop the test_ prefix, this is not golang.

Change-Id: I2e0b6b9812264f3d9721c0766936f08157fadc66
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7667
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-29 12:07:57 +00:00
sterni
56555b211e docs(tvix/eval): sketch in place list/attr set update idea
Change-Id: Ic7debbd8cbd3acdf5f3947288f2aa2964bd163a0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7660
Autosubmit: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-29 09:52:17 +00:00
Florian Klink
c4ee942b1c feat(tvix/store/protos): rename Get to Read, add Stat method
Stat exposes metadata about a given blob,
such as more granular chunking, baos.
It implicitly allows checking for existence too, as asking this for a
non-existing Blob will return a Status::not_found grpc error.

The previous version returned a Status::not_found error on the Get
request too, but there was no chance to prevent the server from starting
to stream (except sending an immediate cancellation).

Being able to check whether something exists in a BlobStore helps to
prevent from uploading in first place.

The granular chunking bits are an optional optimization - if the
BlobStore implements no more granular chunking, the Stat response can
simply contain a single chunk.

Read returns a stream of BlobChunk, which is just a stream of bytes -
not necessarily using the chunking that's returned in the reply of a
Stat() call. It can be used to read blobs or chunks.

Change-Id: I4b6030ef184ace5484c84ca273b49d710433731d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7652
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-28 13:55:18 +00:00
Florian Klink
1c15154b83 feat(tvix/store): make blobstore stream chunks
This changes the RPC methods to return/consume a stream of chunks, instead of a
very big message containing the whole blob, to keep message sizes in manageable
sizes (less than 4MiB).

Change-Id: I2a3a50f07b059d8a2f5196860254adff98c8a352
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7651
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-28 13:55:18 +00:00
Florian Klink
f879993cc4 feat(tvix): add evans to shell
Change-Id: I7ec8bae236330ec1e38e82da67b47aef2815d4b6
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7437
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-28 13:55:18 +00:00
Florian Klink
d973c9772d chore(tvix/store/protos): add PathInfoService::CalculateNAR()
Expose the NAR calculation to a separate `CalculateNAR` method, which
responds with the NAR size and sha256 hash.

Contrary to what cl/7618 and cl/7620 initially did, don't add different
other request types.

In the CalculateNARResponse message, there's now some duplication in the
(optional) `narinfo` field of a PathInfo, but I'm not entirely sure if
we want to drop the fields from there yet.

Change-Id: Id797c56e17efedac115fbd43de9dfde9fa1db140
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7663
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-28 13:55:18 +00:00
Florian Klink
ce7be00994 chore(tvix/store/protos): drop non-sha256 NAR hashes
Nix actually doesn't support anything else than sha256 NAR hashes, so
there's little reason to communicate anything else in here.

Co-Authored-By: edef <edef@unfathomable.blue>
Change-Id: I760370bd6cabd02028e001a74c454ef9296eb600
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7619
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-28 13:55:18 +00:00
Florian Klink
27bfc8cfcd chore(tvix/store/protos): move (Root)Node into separate message
This is gonna get used in another place in a second.

Co-Authored-By: edef <edef@unfathomable.blue>
Change-Id: I347c11c8d24379628b7ed09d2c90670c576e686a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7617
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-28 13:55:18 +00:00
Florian Klink
7163d3ad37 feat(tvix/store): implement Directory::validate()
Change-Id: I4c6ae79d705b8e19a3e2ed54812366e88935d7a6
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7650
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-28 10:58:50 +00:00
Florian Klink
0c7e545fd0 chore(tvix/store): use DUMMY_DIGEST, too
Missed from cl/7649.

Change-Id: Id2d382567f91cba9cdd792fe44bc0a83d040ec69
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7656
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-28 10:58:50 +00:00
Florian Klink
f930c91086 chore(tvix/store): use Directory::default in some more places
Change-Id: Iebad5e0b38f9506933fa855e1bfb2611d27ff572
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7655
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-28 10:58:50 +00:00
Florian Klink
35b18b2fdb chore(tvix/store): use lazy_static and dummy digests
While there's currently nothing in here checking the size of the digest,
we should use something that passes the to-be-introduced validate()
function.

Change-Id: I0c515d9e3afc79292dedebce659a32485aa3d936
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7649
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-27 21:31:33 +00:00
Florian Klink
dfd9286f68 feat(tvix/store/protos): implement Directory.Validate()
Validate thecks the Directory message for invalid data, such as:
- violations of name restrictions
- invalid digest lengths
- not properly sorted lists
- duplicate names in the three lists

Change-Id: I8d43a13797793c64097e526ef3bd482c9606c87b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7648
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-27 21:31:33 +00:00
Florian Klink
c3fb6d2218 feat(tvix/store/protos): implement Size() and Digest() for Directory
This adds Size() and Digest() functions for the golang version.

Change-Id: If71445a9bb26100bb4076ac4f5c96945b33919f9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7325
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-27 21:31:33 +00:00
Florian Klink
a91e6334ff feat(txix/store/protos): init go.mod, generate .pb.go files
This allows importing the generated .pb.go files into other go projects.

I initially looked at buildGo.protos, but it doesn't work for multi-.proto
files, and actually having LSP support for the generated structs is nice, too.

Change-Id: Idbd448008010790a10a0ea42e4059dbb609eaf1a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7322
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-26 11:38:52 +00:00
Florian Klink
2b9330911a feat(tvix/store/protos): add go_package option
Change-Id: I0898b8a0a78e704219da38e5acaabef1e640d4e4
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7321
Reviewed-by: Adam Joseph <adam@westernsemico.com>
Tested-by: BuildkiteCI
2022-12-26 11:38:52 +00:00
Florian Klink
e05e8bdd03 docs(tvix/store): add README, document services and store model
These are intended to help digest the protocol definitions for tvix-
store, and how they tie into the whole concept.

Co-Authored-By: Vincent Ambo <mail@tazj.in>
Change-Id: Ic1ba3ba41ef599209453f15d0ac2e07a6144bcca
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7439
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-26 11:38:52 +00:00
Florian Klink
3676ce8d6d feat(tvix/store): use tonic-build for protos
While prost-build already exposes protobuf message types as structs, we
actually need tonic-build too, to be able to get traits for all the RPC
services defined in the proto files.

Change-Id: I7f4c08454bf0d280d577975c7cdae13ccc2d933b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7320
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-26 11:38:52 +00:00
Vincent Ambo
71174f6626 fix(tvix/eval): fix current clippy warnings
It's been a while since the last time, so quite a lot of stuff has
accumulated here.

Change-Id: I0762827c197b30a917ff470fd8ae8f220f6ba247
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7597
Reviewed-by: grfn <grfn@gws.fyi>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-25 18:25:06 +00:00
Adam Joseph
67d508f2ec refactor(tvix/eval): non-recursive thunk forcing
Introduces continuation-passing-based trampolining of thunk forcing to
avoid recursing when forcing deeply nested expressions.

This is required for evaluating large expressions.

This change was extracted out of cl/7362.

Co-authored-by: Vincent Ambo <tazjin@tvl.su>
Co-authored-by: Griffin Smith <grfn@gws.fyi>
Change-Id: Ifc1747e712663684b2fff53095de62b8459a47f3
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7551
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-25 18:17:46 +00:00
Ryan Lahfa
4cda236c0c feat(tvix/eval): implement From<f64> for Value
Change-Id: I287282a195d6f752260242739332b2357791974a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7625
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-25 15:47:40 +00:00
Vincent Ambo
712f1167ad feat(tvix/eval): display function names in documentation
... if they are known. We currently do not propagate names correctly
for curried functions.

Change-Id: I19d57fb30a5c0000ccdf690b91076f6b2191de23
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7596
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
2022-12-22 19:09:40 +00:00
Vincent Ambo
e3f81e8d3b feat(tvix/cli): add :d REPL-prefix to print explanations of values
Change-Id: I1dd8de8d996e07840f9b0aaebf932b812103a43a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7593
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-22 19:09:40 +00:00
Vincent Ambo
e306d1d1a1 feat(tvix/eval): add Value::explain method
This value creates a human-readable explanation of a value. This can
be used to implement documentation related functionality.

For some values, the amount of information displayed can be expanded
quite a bit.

Change-Id: Ie8c400feae909e7680af163596f99060262e4241
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7592
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-22 19:09:40 +00:00
Vincent Ambo
ea7d63e177 feat(tvix/cli): implement NixCompatIO helper type
This type allows for temporarily compatibility with the C++ Nix store,
specifically (for now) it gives us the store directory used by Nix and
imports files the same way.

Change-Id: I4767794ef2863eba49661315c63c4e17de946d60
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7587
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-22 19:09:40 +00:00
Florian Klink
40a17acdc1 feat(tvix): add crate2nixGenerate target
`mg run //tvix:crate2nixGenerate --` runs crate2nix generate and
depotfmt's it afterwards.

This removes a frequent point of friction, because the Cargo.nix emitted
by crate2nix needs another formatter.

Change-Id: I649495980718cd3847d4cff77c9d4bfcb599387c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7612
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
2022-12-22 15:26:41 +00:00
Florian Klink
2e04f68df8 feat(tvix/proto): add rpc_directory.proto
This provides an interface to retrieve and upload single Directory
messages, or a DAG of them.

Change-Id: Id9e7084bd697d843649a122da2c992a3e36d808c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7137
Tested-by: BuildkiteCI
Reviewed-by: Adam Joseph <adam@westernsemico.com>
2022-12-22 14:35:32 +00:00
Florian Klink
870cd533dd feat(tvix/proto): add rpc_pathinfo
This defines a service that can be used to upload and retrieve metadata
of nix paths.

Change-Id: Id86eb531ce4ae316adb15934b0d1386a14ba2132
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7136
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: Adam Joseph <adam@westernsemico.com>
2022-12-22 14:35:32 +00:00
Vincent Ambo
22ed59fabd chore(tvix/eval): fix a broken comment
Change-Id: I0a6edb51685f94d4712089ae805170da3fb7faae
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7609
Reviewed-by: grfn <grfn@gws.fyi>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-21 23:29:26 +00:00
Vincent Ambo
908cebf35c fix(tvix/builtin-macros): parse multi-line docstrings correctly
Having a multi-line docstring yields multiple doc-attributes in order,
however we were previously discarding all but the first one.

This reduces them into a single string instead, which can then be
displayed as multi-line documentation.

Change-Id: I1f237956cdea2e4c746d3f13744e0373c1c645a6
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7594
Reviewed-by: grfn <grfn@gws.fyi>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-21 23:05:22 +00:00
Vincent Ambo
270b1084e8 feat(tvix/eval): use EvalIO::import_path when coercing paths
This "ties the knot" of importing files into a store when referring
to them through path literals, e.g. inside of strings.

I'm not yet sure if this interface is sufficient for
builtins.path (which we haven't implemented at all yet), but it's
enough to wire up eval & store initially.

In the default implementations nothing interesting happens in this
function at all.

Change-Id: Ie01ff4161617d1e743a68dbd1a5e54c1b40c0990
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7582
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-21 22:59:18 +00:00
Vincent Ambo
edd13573f5 refactor(tvix/eval): use light spans in builtins.import
Change-Id: I05732073155b430575babb6f076bf465aef98857
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7581
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
2022-12-21 22:59:18 +00:00
Adam Joseph
947a56c4b6 feat(tvix/eval): builtins.storeDir
Returns the store directory through EvalIO::store_dir.

Note that this is _optional_ in Tvix, as an evaluation can occur in a
context where there simply is no store directory. In those contexts,
`builtins.storeDir` returns `null` in Tvix.

This would only happen in contexts like Tvixbolt (or completely
unrelated use-cases) in practice.

Co-Authored-By: Vincent Ambo <tazjin@tvl.su>
Change-Id: I5a752c7e89b2f75bd7efb082dbfa5b25e3b1ff3b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7452
Autosubmit: Adam Joseph <adam@westernsemico.com>
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
2022-12-21 22:59:18 +00:00
Vincent Ambo
4cb9ada0df refactor(tvix/eval): use EvalIO::read_dir for equivalent builtin
Change-Id: I6d782c07166f51587d2f1d06607823268debb5d5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7574
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-21 22:59:18 +00:00
Vincent Ambo
51deadd983 refactor(tvix/eval): use EvalIO::path_exists for the builtin
Change-Id: I49822ce30137777865e7370ee86666636e277b35
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7573
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
2022-12-21 22:53:02 +00:00
Vincent Ambo
ec3e38c2d6 chore(tvix/eval): gate tvix_eval::StdIO behind the impure feature
This shouldn't be available if we've built a "pure" crate.

Change-Id: I7c85827ee212890252ff7e0b6242e2c52618cba5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7572
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
2022-12-21 22:53:02 +00:00
Vincent Ambo
29790147b6 fix(tvix/cli): use tvix_eval::StdIO in CLI
... until we have a store-I/O layer, or something that intercepts the
store-related stuff appropriately.

Change-Id: I22f63435b3f9e118e3faeb2924fda8373a23ea7f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7568
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-21 22:37:11 +00:00
Vincent Ambo
0ef3c2fc2b refactor(tvix/eval): use EvalIO::read_to_string in impure builtins
With this change, the behaviour of reading a string from a file path
is controlled by the provided `EvalIO` structure.

This is a huge step towards abstracting away I/O behaviour correctly.

Change-Id: Ifde8e46cd863b16e0301dca45a434ad27560399f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7567
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
2022-12-21 22:37:11 +00:00
Vincent Ambo
c3c4d752c9 feat(tvix/eval): add EvalIO to public crate API
This lets users set the `io_handle` field on an `Evaluation`, which is
then propagated to the VM.

Change-Id: I616d7140724fb2b4db47c2ebf95451d5303a487a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7566
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-21 22:37:11 +00:00
Vincent Ambo
25fc6b7c25 feat(tvix/eval): introduce initial EvalIO trait
This trait is going to be used to abstract filesystem interactions in
Tvix.

For now, it only contains a `read_to_string` method that closely
mirrors `std::fs::read_to_string`.

As a first step, to see how this works in practice, we will thread
through only this function to the various relevant parts.

Two implementations are provided in tvix-eval itself: A dummy
implementation (which just returns ErrorKind::NotImplemented for all
operations), and a std implementation which delegates to `std`
functions.

Change-Id: Ied3e3bf4bd0e874dd84e166190e3873a0f923ddb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7565
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-21 22:37:11 +00:00
Vincent Ambo
bf286a54bc refactor(tvix/eval): add a LightSpan type for lighter span tracking
This type carries the information required for calculating a
span (i.e. the chunk and offset), instead of the span itself. The span
is then only calculated in cases where it is required (when throwing
errors).

This reduces the eval time for
`builtins.length (builtins.attrNames (import <nixpkgs> {}))` by *one
third*!

The data structure in chunks that carries span information reduces
in-memory size by trading off the speed of retrieving span
information. This is because the span information is only actually
required when throwing errors (or emitting warnings).

However, somewhere along the way we grew a dependency on carrying span
information in thunks (for correctly reporting error chains). Hitting
the code paths for span retrieval was expensive, and carrying the
spans in a different way would still be less cache-efficient. This
change is the best tradeoff I could come up with.

Refs: b/229.
Change-Id: I27d4c4b5c5f9be90ac47f2db61941e123a78a77b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7558
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-21 22:21:25 +00:00
Vincent Ambo
8b3d03db92 chore(tvix/cli): rename binary to just 'tvix'
Change-Id: If735c81a04f60dcd77f1c40b595b52ed88bbbe95
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7580
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
Reviewed-by: flokli <flokli@flokli.de>
2022-12-21 21:48:08 +00:00
Adam Joseph
da7c331d2c feat(tvix/eval): add thunks with suspended native Rust code
Having thunks which, when forced, execute native Rust code rather
than interpreted opcodes lets us avoid having to bundle
`src/libexpr/primops/derivation.nix` like cppnix does by implementing
it in Rust instead.

Change-Id: If91d77a6736234321eee87ba4b4777eed5a3fe1c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7450
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-21 21:48:08 +00:00
Vincent Ambo
87995ed355 refactor(tvix/eval): add name-based index over compiler's locals
Instead of finding locals by doing 2x O(n) walks over the compiler's
locals list, use a secondary name-based index for resolving locals by
name.

Previously, almost 60% (!!) of eval time on some expressions over
nixpkgs was spent in `Local::has_name`. This function doesn't even
exist anymore now, and eval speed about doubles as a result.

Note that this doesn't exactly make the locals code easier to read,
but I'm also not sure what we can simplify in there in general.

This fixes b/227.

Change-Id: I29ce5eb9452b02d3b358c673e1f5cf8082e2fef9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7560
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-21 21:48:08 +00:00
Adam Joseph
922bf7aca9 feat(tvix/eval): remove derive(Copy) from Upvalues
Change-Id: I0fa069fbeff6718a765ece948c2c1bce285496f7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7449
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-21 14:50:04 +00:00
Adam Joseph
e04b1697e4 feat(tvix/eval): wrap Closure in Rc<> to match cppnix semantics
Change-Id: I595087eff943d38a9fc78a83d37e207bb2ab79bc
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7443
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-21 14:50:04 +00:00
Vincent Ambo
b3c34c3c61 docs(tvix/nar): document how to use NAR writer
This is done in the form of some comments on the functions, as well as
a functional doctest that writes a single file to a NAR.

Change-Id: Ic97ebd439e91d6b076685807fe70de098ec02575
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7599
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
2022-12-21 14:31:54 +00:00
Vincent Ambo
a95dea719f chore(tvix/nar): add CI build target
Change-Id: Ic73a391da9a733cade26114ab1127907c8d62a57
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7598
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-21 14:08:30 +00:00
Vincent Ambo
f467df06dc chore(tvix/cli): re-add observer flags
Users can again pass flags for dumping the AST, bytecode, and runtime
trace.

With this commit the CLI is at feature-parity with what we had before,
but entirely through the new API.

Change-Id: I30fe26f243224b25d1e4f828fec607325ef88306
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7550
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
2022-12-21 13:23:38 +00:00
Vincent Ambo
60d9fba56d chore(tvix/cli): re-add NIX_PATH handling
Change-Id: I5595d6f5141ed4a533ca44a46264dc604fca6be1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7549
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
2022-12-21 13:23:38 +00:00
Vincent Ambo
36eaa9b3b3 chore(tvix/cli): re-add --raw argument
Change-Id: I82f469f7f186c754c40bd941587b30aa3fc48045
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7548
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-21 13:23:38 +00:00
Vincent Ambo
6d3d237923 refactor(tvix/eval): consume self in Evaluation::evaluate
This simplifies lifetime management for observers in callers of tvix_eval.

Change-Id: I2f47c8d89f22b1c766526e5d1483c0d026b500ae
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7546
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-21 13:23:38 +00:00
Vincent Ambo
59e695a9d9 feat(tvix/eval): add observer configuration to public API
With this change, it should be possible to have both existing
use-cases (CLI & Tvixbolt) use the same API.

Change-Id: I2195264f08cc892177b559a28660dc5f98e48e41
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7545
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
2022-12-21 13:23:38 +00:00
Vincent Ambo
9bc1e6ef05 feat(tvix/eval): add configuration of Nix search path to public API
This is required for passing through NIX_PATH from the CLI.

Change-Id: If129df79ef9c3ffab31408adb85679909276c4f0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7544
Reviewed-by: grfn <grfn@gws.fyi>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-21 13:23:38 +00:00
Vincent Ambo
9d6ee5b6a6 fix(tvix/eval): use test-generator fork that supports workspaces
This should make no difference in Nix builds, but allows running tests
locally again with `cargo test` for //tvix/eval.

Change-Id: I97d61840143d5c14db61d5862781bf635f9a28e7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7590
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
2022-12-21 13:23:38 +00:00
Vincent Ambo
257c67f204 chore(tvix): upgrade to clap 4.0
In //tvix/eval:

* criterion bumped to 4.0, which at least depends on clap 3.x instead
  of 2.x, which is less incompatible

In //tvix/cli:

* no changes required

In //tvix/nix_cli:

* some minor changes for compatibility with clap 4.0, no functionality
  changes

Change-Id: If793f64b59fcaa2402d3d483ddbab4092f32df03
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7588
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-21 13:23:38 +00:00
Vincent Ambo
d9e2bec953 refactor(tvix): split binary (REPL etc.) out from evaluator library
The tvix-eval project is independent from any *uses* of the evaluator,
such as the tvix-repl.

This functionality has been split out into a separate "tvix-cli"
crate. Note that this doesn't have to mean that this CLI crate is the
"final" CLI crate for tvix, the point of this is not "getting the CLI
structure right" but rather "getting the evaluator structure right".

This reshuffling is part of restructuring the way that functionality
like store communication is injected into language evaluation.

Note that at this commit the new CLI crate is not at feature-parity.

Change-Id: Id0af03dc8e07ef09a9f882a89612ad555eca8f93
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7541
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
2022-12-21 13:09:29 +00:00
Vincent Ambo
1138fbcaad refactor(tvix/eval): use new public API in test code
This removes internal uses of the previous crate::eval module, which
is being removed.

Change-Id: I5fb3c53460a9c5381853d0258f9ed074ab23c630
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7543
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: grfn <grfn@gws.fyi>
2022-12-21 13:09:28 +00:00
Vincent Ambo
d101151fc5 feat(tvix/eval): begin introducing new public API
A step towards something more like how I imagine the future public API
for tvix-eval. Please note that this is definitely not the final
version yet, but it's better than the previous API that either exposed
a side-effecting blackbox, or a very low-level "interface".

The basic idea is that an evaluation of some Nix code is requested by
a caller with various parameters, but not all callers are interested
in all of these parameters.

There are also some bits of information that are returned from an
evaluation that are not necessarily relevant to all callers.

To support this somewhat ergonomically, the API is built around an
`Evaluation` struct that is configured by the caller with the various
parameters and then "executed".

Change-Id: I71826f3897126898adc2873d31c44d3eaf5c2be0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7542
Reviewed-by: grfn <grfn@gws.fyi>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-21 13:09:27 +00:00
edef
15e98314cc feat(tvix/nar): init writer
Change-Id: I101f35840cb14c58af708c91e59f997f6d167f75
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7505
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
2022-12-20 15:59:44 +00:00
Florian Klink
5f9796cf94 feat(tvix/proto): add rpc_blobstore
This defines a service that can be used to get and put content-addressed
chunks of data.

Change-Id: I36cf2278ed1daf71848c04fdfd14450b2268c5de
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7135
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-15 19:10:26 +00:00
Vincent Ambo
64f812b2f0 refactor(tvix): provide a combined //tvix:shell mkShell target
Manually maintained shell target based on the previous "loose"
`shell.nix` file.

We might want to have a function that combines the dependencies of all
the targets automatically, but at a quick glance that was actually
non-trivial so I'm leaving it as an exercise for someone else.

Change-Id: I74754940088f1b58e3b6754fb782470c80ea4292
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7540
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
2022-12-15 17:26:45 +00:00
Vincent Ambo
3aca3d3bba refactor(tvix): build Rust projects using crate2nix
Introduces granular dependency builds using crate2nix, bootstrapped
off the generated configuration from the newly introduced
workspace (see cl/7533).

This commit checks in the generated Cargo.nix file which can be
regenerated with a parameterless invocation of `crate2nix generate` in
`//tvix`. I tried generating this in IFD, but it turned out to be
harder than what seemed worthwhile for now.

In this setup, the various build targets for Rust projects end up
being attributes of the imported `Cargo.nix` file at the `tvix.crates`
attribute. These still lack configuration, however, which has been
fixed in the various `default.nix` files of individual projects.

Note that we (temporarily) lose the ability to build tvix-eval's
benchmarks in CI. I haven't figured out what magic incantation summons
them from the void again ...

The `eval-okay-readDir` tests from both test suites have been disabled
because they fail for unknown reasons when run in this new derivation.
Somebody will have to debug it!

Change-Id: I2014614ccb9c8951aedbd71df7966ca191a13695
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7538
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
2022-12-15 17:26:45 +00:00
Vincent Ambo
d9d627cdf0 refactor(tvix): share a Cargo.lock file between Rust projects
This relates to the (abandoned) cl/7256.

Introduces a Cargo workspace at //tvix that is primarily intended to
be used as a workaround for the annoying Nix+Rust tooling while having
a consistent set of dependencies.

This is driven in part by a desire to adopt crate2nix and get more
granular Nix builds for Tvix's Rust projects, and in part by a need to
split //tvix/eval into something providing the CLI (REPL etc.), and a
library providing eval, without significantly altering the structure
of build targets.

To accomplish this the workspace has been designed to allow projects
to remain independent build targets. I want to avoid lumping all the
projects together - something like //tvix/eval should always be
independent of other parts of tvix.

A helper function in //tvix/default.nix lets downstream naersk
projects construct a sparse root for the project which combines the
workspace's `Cargo.lock` with the project's own `Cargo.toml`.

Note that cargo commands in the workspace itself require the build
dependencies of _all_ projects to be present, which is currently a bit
annoying to accomplish.

This introduces some breakage:

1. It breaks usage of rust-analyser without being in a shell with the
   dependencies of *all* Tvix projects, as it is not capable of
   respecting only the subset of dependencies for a part of the
   workspace.

2. It is no longer possible to run tests using `cargo test`, as the
   test generation crate we use does not work with workspaces:

   https://github.com/frehberg/test-generator/issues/6

   This still works in the Nix build as we construct a Cargo project
   that looks like it's not in a workspace there. Until somebody fixes
   that crate / writes a new macro / does something else with the test
   suite, the way to run the tests is through the Nix build.

Long-term we'll probably want to get rid of cargo completely, it's
just a big wart and most tooling works without it if correctly
configured, but we don't have time for that now.

Change-Id: I846bff7a8429a25c077fd1e9ef4e3c34a299a4a1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7533
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-15 17:26:45 +00:00
Vincent Ambo
0fd956f248 fix(tvix): remove disruptive .envrc file
This .envrc file causes additional software to be loaded, but there is
no way to opt-out even if the software is not desired:

1. If I opt-in (i.e. `direnv allow`) the file, additional stuff that I
   don't need is injected into my environment in a blocking way.

2. If I opt-out, *all* of the depot configuration (including `mg`) is
   unloaded, as direnv configurations do not trivially nest.

I have to work around this constantly by making the file contain just
the line `source_up` and then setting `--assume-unchanged` on the git
index to avoid accidentally committing the file changes.

This is kind of silly, the people who *want* this stuff to be loaded
should devise a mechanism that loads it automatically but is opt-in.

This could be done e.g. by gating something on environment variables,
or having a shell hook, or whatever. Breaking expectations that hold
elsewhere in depot is not okay, however.

If you manually want a shell for a project, run `mg shell` either with
a target specification for that project (e.g. `mg shell //tvix/store`)
or in the project's folder.

You can also just use standard nix-shell invocations.

Change-Id: I0de43378424d0cb1e1279c72c47940fecf497bf0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7531
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
2022-12-15 17:26:45 +00:00
Vincent Ambo
f282984c25 fix(tvix/eval): use rnix-parser from crates.io
A few weeks ago, oberblastmeister did a release to crates.io so we can
stop importing it via GitHub.

Change-Id: I9d5fa5cd281685779c71b12fed45ed201a1db17e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7532
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
2022-12-06 18:29:50 +00:00
Florian Klink
0a4a0d1c6b feat(tvix/store): add size() and digest() functions for Directory
Change-Id: I3a9e3c77da1d5d7bfb93da0cd7bce8d48dbc8cd4
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7254
Reviewed-by: Adam Joseph <adam@westernsemico.com>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-04 10:41:39 +00:00
Florian Klink
a97e3726df feat(tvix/store): build rust proto files
This uses prost-build to build the proto files.

Change-Id: Ia99fcfa4a19c741683cf28a45202e1d9211f9131
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7286
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: Adam Joseph <adam@westernsemico.com>
2022-12-04 10:41:39 +00:00
Florian Klink
c432aae9b3 feat(tvix/store): init
Change-Id: Id846647fa456ff8b187ed4f16d035ce030f11d25
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7264
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-04 10:41:39 +00:00
Florian Klink
12413a669f feat(tvix/store): add pathinfo.proto
This adds the PathInfo message, which hosts information about a Nix
Store path, mapping to either of a {Directory,File,Symlink}Node.

Change-Id: I79d871b6fad450d6a4ae4101fb72c51f9a83471f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7132
Reviewed-by: Adam Joseph <adam@westernsemico.com>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-04 10:41:39 +00:00
Florian Klink
ff5e041fdb chore(tvix/store): move castore.proto
This moves the castore.proto file into the //tvix/store/protos directory. Per-
component protos might make more sense, than a "tvix-wide" proto directory.

Change-Id: Ie728210174b041e9285a0e2ac605d715d0f0cbda
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7285
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2022-12-04 10:41:39 +00:00
Lyle Mantooth
f4e17caae8 feat(tvix/eval): Continue removing leakage of BTreeMap.
Fixes b/212. Based on feedback in https://cl.tvl.fyi/c/depot/+/7492, all
uses of `NixAttrs::from_map` have been removed. Only `from_iter` and
`from_kv` remain.

Change-Id: I52e25f73018c2aa1843197427516b7a852503e2c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7500
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Autosubmit: IslandUsurper <lyle@menteeth.us>
2022-12-03 13:26:51 +00:00