diff options
Diffstat (limited to 'tvix/glue')
| -rw-r--r-- | tvix/glue/src/lib.rs | 10 | ||||
| -rw-r--r-- | tvix/glue/src/tvix_io.rs | 4 |
2 files changed, 12 insertions, 2 deletions
diff --git a/tvix/glue/src/lib.rs b/tvix/glue/src/lib.rs index acb81d31445f..760e730217ee 100644 --- a/tvix/glue/src/lib.rs +++ b/tvix/glue/src/lib.rs @@ -26,3 +26,13 @@ pub fn add_derivation_builtins( eval.src_builtins .push(("derivation", include_str!("derivation.nix"))); } + +/// Tell the Evaluator to resolve <nix> to the path `/__corepkgs__`, +/// which has special handling in [tvix_io::TvixIO]. +/// This is used in nixpkgs to import `fetchurl.nix` from `<nix>`. +pub fn configure_nix_path(eval: &mut tvix_eval::Evaluation, nix_search_path: &Option<String>) { + eval.nix_path = nix_search_path + .as_ref() + .map(|p| format!("nix=/__corepkgs__:{}", p)) + .or_else(|| Some("nix=/__corepkgs__".to_string())); +} diff --git a/tvix/glue/src/tvix_io.rs b/tvix/glue/src/tvix_io.rs index caadbeb5e663..09e1417a2157 100644 --- a/tvix/glue/src/tvix_io.rs +++ b/tvix/glue/src/tvix_io.rs @@ -59,8 +59,8 @@ impl<T: EvalIO> EvalIO for TvixIO<T> { fn read_to_string(&self, path: &Path) -> Result<String, io::Error> { // Bundled version of corepkgs/fetchurl.nix. The counterpart - // of this happens in `main`, where the `nix_path` of the - // evaluation has `nix=/__corepkgs__` added to it. + // of this happens in [crate::configure_nix_path], where the `nix_path` + // of the evaluation has `nix=/__corepkgs__` added to it. // // This workaround is similar to what cppnix does for passing // the path through. |