update #20039

	name: Check mainnet configuration

	on:
	push:
	merge_group:

	jobs:
	build:
	runs-on: ubuntu-latest

	defaults:
	run:
	shell: bash

	steps:

	- name: Install Nix
	uses: cachix/install-nix-action@v27
	with:
	# Use last stable nixos channel and the same nix as in channel:
	nix_path: nixpkgs=channel:nixos-24.05
	github_access_token: ${{ secrets.GITHUB_TOKEN }}
	extra_nix_config: \|
	access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
	experimental-features = nix-command flakes
	allow-import-from-derivation = true
	substituters = https://cache.nixos.org https://cache.iog.io
	trusted-public-keys = hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=

	- uses: actions/checkout@v3

	- name: Refresh cardano-node mainnet configuration
	run: \|
	nix build --no-update-lock-file .#hydraJobs.cardano-deployment

	- name: Check if configuration from nix is a superset of in-repo configuration
	run: \|
	set -uo pipefail

	test_files=(
	'mainnet-alonzo-genesis.json'
	'mainnet-byron-genesis.json'
	'mainnet-config.json'
	'mainnet-shelley-genesis.json'
	'mainnet-topology.json'
	)

	for f in "${test_files[@]}"; do
	nix_file="result/$f"
	repo_file="configuration/cardano/$f"
	if ! jq -e --slurpfile nix "$nix_file" --slurpfile repo "$repo_file" -n '$repo \| reduce keys[] as $k (true; . and $repo[$k] == $nix[$k])' &>/dev/null ; then
	echo "Nix file $nix_file does not have all the same top-level entries as the file from repository $repo_file"
	diff "$nix_file" "$repo_file"
	exit 1
	fi
	done

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