842d6816bf
nixpkgs calls <nix/fetchurl.nix> during nixpkgs bootstrap. This produces a fake derivation with system = builtin and builder = builtin:fetchurl, and needs to download files from the internet. At the end of the Derivation construction, if we have such a derivation, also synthesize a `Fetch` struct, which we add to the known fetch paths. This will then cause these fetches to be picked up like all other fetches in TvixStoreIO. Change-Id: I72cbca4f85da106b25eda97693a6a6e59911cd57 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10975 Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI
25 lines
650 B
Rust
25 lines
650 B
Rust
pub mod builtins;
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pub mod fetchers;
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pub mod known_paths;
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pub mod refscan;
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pub mod tvix_build;
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pub mod tvix_io;
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pub mod tvix_store_io;
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mod fetchurl;
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#[cfg(test)]
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mod tests;
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/// Tell the Evaluator to resolve `<nix>` to the path `/__corepkgs__`,
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/// which has special handling in [tvix_io::TvixIO].
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/// This is used in nixpkgs to import `fetchurl.nix` from `<nix>`.
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pub fn configure_nix_path<IO>(
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eval: &mut tvix_eval::Evaluation<IO>,
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nix_search_path: &Option<String>,
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) {
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eval.nix_path = nix_search_path
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.as_ref()
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.map(|p| format!("nix=/__corepkgs__:{}", p))
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.or_else(|| Some("nix=/__corepkgs__".to_string()));
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}
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