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Florian Klink 5f2c2e79e1 refactor(tvix/nix-compat): move build_store_path out of derivation 
This doesn't have anything to do with ATerms, we just happen to be using
the aterm representation of a Derivation as contents.

Moving this into store_path/utils.rs makes these things much cleaner -
Have a build_store_path_from_references function, and a
build_store_path_from_fingerprint helper function that makes use of it.

build_store_path_from_references is invoked from the derivation module
which can be used to calculate the derivation path.

In the derivation module, we also invoke
build_store_path_from_fingerprint during the output path calculation.

Change-Id: Ia8d61a5e8e5d3f396f93593676ed3f5d1a3f1d66
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8367
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
2023-03-30 14:03:35 +00:00
..
.vscode chore(tvix): fix vscode rust-analyzer recommendation 2022-10-15 16:54:28 +00:00
cli refactor(tvix/nix-compat): move build_store_path out of derivation 2023-03-30 14:03:35 +00:00
docs docs(tvix): fix minor spelling problems in pointer equality document 2023-01-25 14:30:50 +00:00
eval refactor(tvix/eval): retain call frames when entering calls 2023-03-27 09:02:43 +00:00
nix-compat refactor(tvix/nix-compat): move build_store_path out of derivation 2023-03-30 14:03:35 +00:00
nix_cli chore(tvix): upgrade to clap 4.0 2022-12-21 13:23:38 +00:00
proto chore(tvix/store): move castore.proto 2022-12-04 10:41:39 +00:00
serde feat(tvix/eval): add Evaluation::strict to toggle top-level deepseq 2023-03-22 13:44:20 +00:00
store refactor(tvix/nix-compat): move build_store_path out of derivation 2023-03-30 14:03:35 +00:00
verify-lang-tests test(tvix/eval): add test for builtins parity 2023-01-06 12:00:38 +00:00
website feat(tvix): add simple initial website 2023-03-14 21:59:40 +00:00
.gitignore feat(tvix/): .gitignore target folders 2022-11-11 19:55:12 +00:00
Cargo.lock chore(tvix): bump Cargo dependencies 2023-03-27 09:03:34 +00:00
Cargo.nix chore(tvix): bump Cargo dependencies 2023-03-27 09:03:34 +00:00
Cargo.toml refactor(tvix/nix-compat): absorb nar writer 2023-01-31 15:18:39 +00:00
crate-hashes.json fix(tvix/cli): use tvlfyi/wu-manber fork for refscanner 2023-02-04 12:44:59 +00:00
default.nix refactor(views): move view export configuration to //views 2023-03-28 09:42:12 +00:00
LICENSE chore(tvix): Bootstrap Tvix folder 2021-03-27 00:09:49 +00:00
OWNERS chore(gerrit): migrate OWNERS files to code-owners style 2022-09-19 11:13:28 +00:00
README.md style(tvix): add new logo to the Tvix README 2023-03-14 22:44:18 +00:00

README.md

Tvix is a new implementation of the Nix language and package manager. See the announcement post for information about the background of this project.

Tvix is developed by TVL in our monorepo, the depot, at //tvix. Code reviews take place on Gerrit, bugs are filed in our issue tracker.

For more information about Tvix, feel free to reach out. We are interested in people who would like to help us review designs, brainstorm and describe requirements that we may not yet have considered.

Most of the discussion around development happens on our IRC channel, which you can join in several ways documented on tvl.fyi, or on our mailing list.

Contributions to Tvix follow the TVL review flow and contribution guidelines.

WARNING: Tvix is not ready for use in production. None of our current APIs should be considered stable in any way.

WARNING: Any other instances of this project or repository are josh-mirrors. We do not accept code contributions or issues outside of the tooling and communication methods outlined above.

Components

This folder contains the following components:

  • //tvix/eval - an implementation of the Nix programming language
  • //tvix/nix-compat - library functions for compatibility with C++ Nix
  • //tvix/cli - preliminary REPL & CLI implementation for Tvix
  • //tvix/serde - Rust library for using the Nix language for app configuration
  • //tvix/store - implementation of a file store for Tvix

Some additional folders with auxiliary things exist and can be explored at your leisure.

Building the CLI

The CLI can also be built with standard Rust tooling (i.e. cargo build), as long as you are in a shell with the right dependencies.

  • If you cloned the full monorepo, it can be provided by mg shell //tvix:shell.
  • If you cloned the tvix workspace only (git clone https://code.tvl.fyi/depot.git:workspace=views/tvix.git), nix-shell provides it.

If you're in the TVL monorepo, you can also run mg build //tvix/cli (or mg build from inside that folder) for a more incremental build.

Please follow the depot-wide instructions on how to get mg and use the depot tooling.

Compatibility

Important note: We only use and test Nix builds of our software against Nix 2.3. There are a variety of bugs and subtle problems in newer Nix versions which we do not have the bandwidth to address, builds in newer Nix versions may or may not work.

Rust projects, crate2nix

Some parts of Tvix are written in Rust. To simplify the dependency management on the Nix side of these builds, we use crate2nix in a single Rust workspace in //tvix to maintain the Nix build configuration.

When making changes to Cargo dependency configuration in any of the Rust projects under //tvix, be sure to run mg run //tvix:crate2nixGenerate -- in //tvix itself and commit the changes to the generated Cargo.nix file. This only applies to the full TVL checkout.

License structure

All code implemented for Tvix is licensed under the GPL-3.0, with the exception of the protocol buffer definitions used for communication between services which are available under a more permissive license (MIT).

The idea behind this structure is that any direct usage of our code (e.g. linking to it, embedding the evaluator, etc.) will fall under the terms of the GPL3, but users are free to implement their own components speaking these protocols under the terms of the MIT license.