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feat(tvix/eval): implement builtins.filterSource

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We add a new set of builtins called `import_builtins`, which
will contain import-related builtins, such as `builtins.path` and
`builtins.filterSource`. Both can import paths into the store, with
various knobs to alter the result, e.g. filtering, renaming, expected
hashes.

We introduce `filtered_ingest` which will drive the filtered ingestion
via the Nix function via the generator machinery, and then we register
the root node to the path info service inside the store.

`builtins.filterSource` is very simple, `builtins.path` is a more
complicated model requiring the same logic albeit more sophisticated
with name customization, file ingestion method and expected SHA-256.

Change-Id: I1083f37808b35f7b37818c8ffb9543d9682b2de2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10654
Autosubmit: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
This commit is contained in:
Ryan Lahfa 2024-01-17 07:45:55 +01:00 • committed by clbot
parent 20833656ae
commit 7388078630
9 changed files with 521 additions and 69 deletions
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4
tvix/cli/src/main.rs
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@ -10,6 +10,7 @@ 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::builtins::add_import_builtins;
use tvix_glue::tvix_io::TvixIO;
use tvix_glue::tvix_store_io::TvixStoreIO;
use tvix_glue::{builtins::add_derivation_builtins, configure_nix_path};
@ -130,7 +131,8 @@ 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.clone());
add_fetcher_builtins(&mut eval, tvix_store_io);
add_fetcher_builtins(&mut eval, tvix_store_io.clone());
add_import_builtins(&mut eval, tvix_store_io);
configure_nix_path(&mut eval, &args.nix_search_path);
let source_map = eval.source_map();