42 lines
1.4 KiB
Nix
42 lines
1.4 KiB
Nix
{ config, lib, ... }:
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with lib;
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let
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nixos-version-id = if (hasAttr "nixos" config.system) then
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"${config.system.nixos.version}" else "${config.system.nixosVersion}";
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nixos-codeName = if (hasAttr "nixos" config.system) then
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"${config.system.nixos.codeName}" else "${config.system.nixosCodeName}";
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nixos-version = "${nixos-version-id} (${nixos-codeName})";
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nixos-pretty-name = "NixOS ${nixos-version}";
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stockholm-version = "${config.krebs.os-release.stockholm-version-id}";
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stockholm-pretty-name = "stockholm ${stockholm-version}";
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version = "${stockholm-version}/${nixos-version}";
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version-id = "${config.krebs.os-release.stockholm-version-id}/${nixos-version-id}";
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pretty-name = "${stockholm-pretty-name} / ${nixos-pretty-name}";
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home-url = http://cgit.ni.krebsco.de/stockholm;
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in
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{
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options.krebs.os-release = {
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stockholm-version-id = lib.mkOption {
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type = lib.types.str;
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default = let
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eval = builtins.tryEval (removeSuffix "\n" (readFile <stockholm-version>));
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in
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if eval.success then eval.value else "unknown";
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};
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};
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config = {
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# http://0pointer.de/public/systemd-man/os-release.html
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environment.etc."os-release".text = mkForce ''
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NAME="stockholm/NixOS"
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ID=stockholm
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VERSION="${version}"
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VERSION_ID="${version-id}"
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PRETTY_NAME="${pretty-name}"
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HOME_URL="${home-url}"
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'';
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};
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}
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