tvl-depot/third_party/nixpkgs/default.nix
sterni 23e476acd4 chore(3p): bump NixOS channels to 2022-01-15
Change-Id: I1dede07f7b0bac6585c3ecfc788f7fcc10980d52
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4985
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-01-17 21:26:00 +00:00

77 lines
2.5 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 2022-01-15.
unstableHashes = {
commit = "5aaed40d22f0d9376330b6fa413223435ad6fee5";
sha256 = "0bs8sr92lzz7mdrlv143draq3j7l42dj69w3px1x31qcr3n5pgcv";
};
# Tracking nixos-21.11 as of 2022-01-16.
stableHashes = {
commit = "3ddd960a3b575bf3230d0e59f42614b71f9e0db9";
sha256 = "1sk60h584gfdf5ql3mv4hps6jly6yj6dc5fbkfkh082z1c8885vk";
};
# 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 {
# allow users to inject their config into builds (e.g. to test CA derivations)
config =
(if externalArgs ? nixpkgsConfig then externalArgs.nixpkgsConfig else { })
// {
allowUnfree = true;
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
];
}