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feat(tvix/glue): Init fetcher builtins

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Initialize a new empty builtins module `fetcher_builtins`, which will
contain the builtins which fetch URLs from the internet:

* fetchurl
* fetchGit
* fetchTarball
* fetchTree (maybe? this is experimental)

These builtins are all implemented in CPP nix at:
https://github.com/NixOS/nix/blob/2.20.2/src/libexpr/primops/fetchTree.cc

These builtins are added to the evaluation context using a similar
mechanism to the derivation builtins, and have been added everywhere
derivation builtins were previously being added.

Change-Id: I133b91cc9560f23028621414537f712e7bd8a825
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10974
Autosubmit: aspen <root@gws.fyi>
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
This commit is contained in:
Aspen Smith 2024-02-19 10:17:13 -05:00 • committed by clbot
parent b147452948
commit 0db46dacea
6 changed files with 72 additions and 8 deletions
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4
tvix/cli/src/main.rs
View file

@ -9,6 +9,7 @@ use tvix_build::buildservice;
use tvix_eval::builtins::impure_builtins;
use tvix_eval::observer::{DisassemblingObserver, TracingObserver};
use tvix_eval::{EvalIO, Value};
use tvix_glue::builtins::add_fetcher_builtins;
use tvix_glue::tvix_io::TvixIO;
use tvix_glue::tvix_store_io::TvixStoreIO;
use tvix_glue::{builtins::add_derivation_builtins, configure_nix_path};
@ -128,7 +129,8 @@ fn interpret(code: &str, path: Option<PathBuf>, args: &Args, explain: bool) -> b
);
eval.strict = args.strict;
eval.builtins.extend(impure_builtins());
add_derivation_builtins(&mut eval, tvix_store_io);
add_derivation_builtins(&mut eval, Rc::clone(&tvix_store_io));
add_fetcher_builtins(&mut eval, tvix_store_io);
configure_nix_path(&mut eval, &args.nix_search_path);
let source_map = eval.source_map();