lib.warnOnInstantiate

Wrap a derivation such that instantiating it produces a warning.

All attributes apart from meta, name, and type (which are used by nix search) will be wrapped in lib.warn.

Inputs

msg

The warning message to emit (via lib.warn).

drv

The derivation to wrap.

Examples

{
  myPackage = warnOnInstantiate "myPackage has been renamed to my-package" my-package;
}

Noogle detected

• lib.derivations.warnOnInstantiate

warnOnInstantiate =
    msg: drv:
    let
      drvToWrap = removeAttrs drv [
        "meta"
        "name"
        "type"
      ];
    in
    drv // mapAttrs (_: lib.warn msg) drvToWrap;