tvl-depot/third_party/nixpkgs/default.nix
zimbatm 1e439fb5ad feat(3p/nixpkgs): pass localSystem along
This ties the top-level localSystem so it's passed to the instance of
nixpkgs as well.

Change-Id: I9ea3431d5cb35bb99765c5b4d2f22190376435af
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5856
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2022-12-26 10:31:34 +00:00

89 lines
3 KiB
Nix

# This file imports the pinned nixpkgs sets and applies relevant
# modifications, such as our overlays.
#
# The actual source pinning happens via niv in //third_party/sources
#
# 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 ? { }
, depotOverlays ? true
, localSystem ? externalArgs.localSystem or builtins.currentSystem
, ...
}:
let
# Arguments passed to both the stable nixpkgs and the main, unstable one.
# Includes everything but overlays which are only passed to unstable nixpkgs.
commonNixpkgsArgs = {
# 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;
# Forbids our meta.ci attribute
# https://github.com/NixOS/nixpkgs/pull/191171#issuecomment-1260650771
checkMeta = false;
# TODO(grfn): Currently needed for subsurface, set globally to avoid
# reimporting nixpkgs in home-manager
permittedInsecurePackages = [
"qtwebkit-5.212.0-alpha4"
];
};
inherit localSystem;
};
# 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 depot.third_party.sources.nixpkgs;
# Stable package set is imported, but not exposed, to overlay
# required packages into the unstable set.
stableNixpkgs = import depot.third_party.sources.nixpkgs-stable commonNixpkgsArgs;
# Overlay for packages that should come from the stable channel
# instead (e.g. because something is broken in unstable).
# Use `stableNixpkgs` from above.
stableOverlay = _unstableSelf: _unstableSuper: {
inherit (stableNixpkgs)
# bat syntaxes changed with syntect 5.0, but cheddar is still on 4.x
# TODO(tazjin): upgrade cheddar to syntect 5.0
bat
# ntfy does not build on unstable as of 2022-08-02
ntfy
# binaryen does not build on unstable as of 2022-08-22
binaryen
;
};
# Overlay to expose the nixpkgs commits we are using to other Nix code.
commitsOverlay = _: _: {
nixpkgsCommits = {
unstable = depot.third_party.sources.nixpkgs.rev;
stable = depot.third_party.sources.nixpkgs-stable.rev;
};
};
in
import nixpkgsSrc (commonNixpkgsArgs // {
overlays = [
commitsOverlay
stableOverlay
] ++ (if depotOverlays then [
depot.third_party.overlays.haskell
depot.third_party.overlays.emacs
depot.third_party.overlays.tvl
depot.third_party.overlays.ecl-static
depot.third_party.overlays.dhall
(import depot.third_party.sources.rust-overlay)
] else [ ]);
})