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