Trait PackageSet

Source

pub trait PackageSet: Send + Sync {
    // Required methods
    fn get(&self, name: &str) -> Result<PackageLookup, PackageSetError>;
    fn names(&self) -> Vec<String>;

    // Provided method
    fn label(&self) -> &str { ... }
}

Expand description

A queryable set of packages. Implementations include:

NixpkgsBridge — resolves names to nixpkgs attributes on disk
LispPackageSet — tatara-lisp-authored derivations (future)
OverlayPackageSet — one set composed over another

Required Methods§

Source

fn get(&self, name: &str) -> Result<PackageLookup, PackageSetError>

Retrieve the derivation for a named package. None if not present.

Source

fn names(&self) -> Vec<String>

Short list of package names this set knows about. May be a finite enumeration (LispPackageSet) or a caller-provided seed (NixpkgsBridge doesn’t enumerate nixpkgs by default — too large).