feat(3p/nixpkgs): Plumb through externalArgs.nixpkgsBisectPath r/2473

This lets the import of the depot root accept an additional argument
called `externalArgs`, which can be used to pass additional arguments
into a depot package set.

This is used in //third_party/nixpkgs for replacing the source of the
nixos-unstable channel with a path. With this we can bisect the
nixpkgs used in third_party easily.

Change-Id: I4f65eb3d6b521ed9f437649b7b068f1e6ab8210f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2925
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>

0 files changed, 0 insertions, 0 deletions