Commit graph

216 commits

Author SHA1 Message Date
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
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
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
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
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
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
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
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
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
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
31443d21ee chore(tvix): move nix-store CLI scaffolding to subfolder
For some reason a top-level Rust project ended up in this location,
which is incompatible with the actual project structure that's being
prepared for merge right now.

Change-Id: I9d919ad72fc7e4e4d8cbb9899e7f8d90fa7ca87a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6060
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: tazjin <tazjin@tvl.su>
2022-08-12 15:58:59 +00:00
Profpatsch
80defc2101 feat(tvix): set up a simple command line parser for nix-store
We are going to have a 1:1 drop-in replacement for the old-style nix
tools, and this starts implementing the cli parser part.

The first step is to have a simple integration test suite that can
verify that we match the nix CLI.

clap is a super complicated parsing library, but looking through the
rest they are either too opinioated to be of use for us, or depend on
clap as implementation.

Change-Id: I4cf6051f3a4f782c3242fd0d2b9eab3fbe33d8ad
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4756
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: Profpatsch <mail@profpatsch.de>
2022-01-06 19:35:11 +00:00
Profpatsch
7c92b07efd feat(tvix): set up cargo rust project
First steps for baba

Change-Id: Id6a68c5630cb85f280f4dcc7b2acf10c02454fd6
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4732
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-01-06 15:38:52 +00:00