recursiveUpdate

lib.attrsets.recursiveUpdate

Docs pulled from | This Revision | about 1 hour ago

A recursive variant of the update operator ‘//’. The recursion stops when one of the attribute values is not an attribute set, in which case the right hand side value takes precedence over the left hand side value.

Inputs

lhs: Left attribute set of the merge.
rhs: Right attribute set of the merge.

Type

recursiveUpdate :: AttrSet -> AttrSet -> AttrSet

Examples

`lib.attrsets.recursiveUpdate` usage example

recursiveUpdate {
  boot.loader.grub.enable = true;
  boot.loader.grub.device = "/dev/hda";
} {
  boot.loader.grub.device = "";
}

returns: {
  boot.loader.grub.enable = true;
  boot.loader.grub.device = "";
}

Noogle detected

Aliases

lib.recursiveUpdate

Implementation

The following is the current implementation of this function.

recursiveUpdate =
    lhs:
    rhs:
    recursiveUpdateUntil (path: lhs: rhs: !(isAttrs lhs && isAttrs rhs)) lhs rhs;