50 lines
968 B
Nix
50 lines
968 B
Nix
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{ lib
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, writeText
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, writeShellApplication
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, substituteAll
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, gum
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, inputs
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, hosts ? { }
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, ...
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}:
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let
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inherit (lib) mapAttrsToList concatStringsSep;
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inherit (lib.plusultra) override-meta;
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substitute = args: builtins.readFile (substituteAll args);
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formatted-hosts = mapAttrsToList
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(name: host: "${name},${host.pkgs.system}")
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hosts;
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hosts-csv = writeText "hosts.csv" ''
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Name,System
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${concatStringsSep "\n" formatted-hosts}
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'';
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nixos-hosts = writeShellApplication {
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name = "nixos-hosts";
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text = substitute {
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src = ./nixos-hosts.sh;
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help = ./help;
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hosts = if hosts == { } then "" else hosts-csv;
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};
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checkPhase = "";
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runtimeInputs = [
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gum
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];
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};
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new-meta = with lib; {
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description = "A helper to list all of the NixOS hosts available from your flake.";
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license = licenses.asl20;
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maintainers = with maintainers; [ jakehamilton ];
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};
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in
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override-meta new-meta nixos-hosts
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