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51 lines
1.8 KiB
Nix
51 lines
1.8 KiB
Nix
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# Note that these schemas are defined by RFC-0125.
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# This document is considered a stable API, and is depended upon by external tooling.
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# Changes to the structure of the document, or the semantics of the values should go through an RFC.
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#
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# See: https://github.com/NixOS/rfcs/pull/125
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{ config, pkgs, lib, children }:
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let
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schemas = {
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v1 = rec {
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filename = "boot.v1.json";
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json =
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pkgs.writeText filename
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(builtins.toJSON
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{
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schemaVersion = 1;
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kernel = "${config.boot.kernelPackages.kernel}/${config.system.boot.loader.kernelFile}";
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kernelParams = config.boot.kernelParams;
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initrd = "${config.system.build.initialRamdisk}/${config.system.boot.loader.initrdFile}";
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initrdSecrets = "${config.system.build.initialRamdiskSecretAppender}/bin/append-initrd-secrets";
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label = "NixOS ${config.system.nixos.codeName} ${config.system.nixos.label} (Linux ${config.boot.kernelPackages.kernel.modDirVersion})";
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specialisation = lib.mapAttrs
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(childName: childToplevel: {
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bootspec = "${childToplevel}/${filename}";
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})
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children;
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});
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generator = ''
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${pkgs.jq}/bin/jq '
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.toplevel = $toplevel |
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.init = $init
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' \
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--sort-keys \
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--arg toplevel "$out" \
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--arg init "$out/init" \
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< ${json} \
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> $out/${filename}
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'';
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};
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};
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in
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{
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# This will be run as a part of the `systemBuilder` in ./top-level.nix. This
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# means `$out` points to the output of `config.system.build.toplevel` and can
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# be used for a variety of things (though, for now, it's only used to report
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# the path of the `toplevel` itself and the `init` executable).
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writer = schemas.v1.generator;
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}
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