callPackagesWith

lib.customisation.callPackagesWith

Docs pulled from | This Revision | about 1 hour ago

Like callPackage, but for a function that returns an attribute set of derivations. The override function is added to the individual attributes.

Inputs

autoArgs: 1. Function argument
fn: 2. Function argument
args: 3. Function argument

Type

callPackagesWith :: AttrSet -> ((AttrSet -> AttrSet) | Path) -> AttrSet -> AttrSet

Noogle detected

Aliases

lib.callPackagesWith

Implementation

The following is the current implementation of this function.

callPackagesWith =
    autoArgs: fn: args:
    let
      f = if isFunction fn then fn else import fn;
      auto = intersectAttrs (functionArgs f) autoArgs;
      mirrorArgs = mirrorFunctionArgs f;
      origArgs = auto // args;
      pkgs = f origArgs;
      mkAttrOverridable = name: _: makeOverridable (mirrorArgs (newArgs: (f newArgs).${name})) origArgs;
    in
    if isDerivation pkgs then
      throw (
        "function `callPackages` was called on a *single* derivation "
        + ''"${pkgs.name or "<unknown-name>"}";''
        + " did you mean to use `callPackage` instead?"
      )
    else
      mapAttrs mkAttrOverridable pkgs;