tvl-depot/third_party/nixpkgs/default.nix
sterni 397c3e70b3 chore(3p): bump NixOS channels to 2021-11-24
* The API for gradleGen changed which makes our override a bit simpler
  at least.

Change-Id: Ib5d7bc33d30a4545235a8a74eadbb418cd76d1d0
2021-11-25 13:19:04 +01:00

71 lines
2.4 KiB
Nix

# This file imports the pinned nixpkgs sets and applies relevant
# modifications, such as our overlays.
#
# Note that the attribute exposed by this (third_party.nixpkgs) is
# "special" in that the fixpoint used as readTree's config parameter
# in //default.nix passes this attribute as the `pkgs` argument to all
# readTree derivations.
{ depot, externalArgs, ... }:
let
# This provides the sources of nixpkgs. We track both
# nixos-unstable, and the current stable channel of the latest NixOS
# release.
# Tracking nixos-unstable as of 2021-11-24.
unstableHashes = {
commit = "39cb89ef2ffcbef8d2ac2d52267ac69121a6becb";
sha256 = "1x9vzpay56ap4hgfq1giz00050crdngv5jkxgkxzx276mzhw93na";
};
# Tracking nixos-21.05 as of 2021-11-24.
stableHashes = {
commit = "09650059d7f5ae59a7f0fb2dd3bfc6d2042a74de";
sha256 = "0f06zcc8mh934fya0hwzklmga238yxiyfp183y48vyzkdsg7xgn0";
};
# import the nixos-unstable package set, or optionally use the
# source (e.g. a path) specified by the `nixpkgsBisectPath`
# argument. This is intended for use-cases where the depot is
# bisected against nixpkgs to find the root cause of an issue in a
# channel bump.
nixpkgsSrc = externalArgs.nixpkgsBisectPath or (fetchTarball {
url = "https://github.com/NixOS/nixpkgs/archive/${unstableHashes.commit}.tar.gz";
sha256 = unstableHashes.sha256;
});
stableNixpkgsSrc = fetchTarball {
url = "https://github.com/NixOS/nixpkgs/archive/${stableHashes.commit}.tar.gz";
sha256 = stableHashes.sha256;
};
# Stable package set is imported, but not exposed, to overlay
# required packages into the unstable set.
stableNixpkgs = import stableNixpkgsSrc {};
# Overlay for packages that should come from the stable channel
# instead (e.g. because something is broken in unstable).
stableOverlay = self: super: {
# Nothing picked from stable presently.
};
# Overlay to expose the nixpkgs commits we are using to other Nix code.
commitsOverlay = _: _: {
nixpkgsCommits = {
unstable = unstableHashes.commit;
stable = stableHashes.commit;
};
};
in import nixpkgsSrc {
config.allowUnfree = true;
config.allowBroken = true;
overlays = [
commitsOverlay
stableOverlay
depot.third_party.overlays.haskell
depot.third_party.overlays.emacs
depot.third_party.overlays.tvl
depot.third_party.overlays.ecl-static
];
}