Remove devenv impurity #3

	# TODO Remove when I can be arsed to fix the hydra server
	name: "Build"
	on: { push: { branches: [ "main" ] } }
	jobs:
	nix-build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: cachix/install-nix-action@v25
	- uses: cachix/cachix-action@v14
	with:
	name: npp
	authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
	- uses: nixbuild/nixbuild-action@v19
	with:
	nixbuild_token: ${{ secrets.NIXBUILD_NET_AUTH_TOKEN }}

	# Evaluating things one by one like this is slower but also does not require ungodly amounts of memory
	- run: \|
	set -euo pipefail

	# shellcheck disable=SC2016
	nix eval --impure .#hydraJobs --apply '
	hydraJobs:
	let
	flatten = x:
	if builtins.isList x then
	builtins.concatMap flatten x
	else
	[ x ]
	;

	recurse = set: builtins.map (x: x.path) (flatten (recurse'"'"' [ ] set));
	recurse'"'"' = path: set:
	if set.type or "" == "derivation" then
	{ inherit path; }
	else
	builtins.map (name: recurse'"'"' (path ++ [ name ]) set.${name}) (builtins.attrNames set)
	;

	in
	recurse hydraJobs
	' --json \
	\| nix run nixpkgs#jq -- --raw-output0 '.[] \| map("\"" + . + "\"") \| join(".")' \
	\| xargs -tr0I{} nix -L build --impure --keep-going .#hydraJobs.{} -o result-{}

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