disko/install-cli.nix

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{ flake
, flakeAttr
, diskMappings
, extraSystemConfig ? "{}"
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, writeEfiBootEntries ? false
, rootMountPoint ? "/mnt"
,
}:
let
originalSystem = (builtins.getFlake "${flake}").nixosConfigurations."${flakeAttr}";
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lib = originalSystem.pkgs.lib;
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deviceName =
name:
if diskMappings ? ${name} then
diskMappings.${name}
else
throw "No device passed for disk '${name}'. Pass `--disk ${name} /dev/name` via commandline";
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modifiedDisks = builtins.mapAttrs
(
name: value:
let
dev = deviceName name;
in
value
// {
device = dev;
content = value.content // {
device = dev;
};
}
)
originalSystem.config.disko.devices.disk;
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# filter all nixos module internal attributes
cleanedDisks = lib.filterAttrsRecursive (n: _: !lib.hasPrefix "_" n) modifiedDisks;
diskoSystem = originalSystem.extendModules {
modules = [
{
disko.rootMountPoint = rootMountPoint;
disko.devices.disk = lib.mkVMOverride cleanedDisks;
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}
];
};
installSystem = originalSystem.extendModules {
modules = [
(
{ lib, ... }:
{
boot.loader.efi.canTouchEfiVariables = lib.mkVMOverride writeEfiBootEntries;
boot.loader.grub.devices = lib.mkVMOverride diskoSystem.config.boot.loader.grub.devices;
imports = [
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({ _file = "disko-install --system-config"; } // (builtins.fromJSON extraSystemConfig))
];
}
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)
];
};
in
{
installToplevel = installSystem.config.system.build.toplevel;
closureInfo = installSystem.pkgs.closureInfo {
rootPaths = [ installSystem.config.system.build.toplevel ];
};
inherit (diskoSystem.config.system.build) formatScript mountScript diskoScript;
}