118 lines
3.8 KiB
Nix
118 lines
3.8 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}:
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let
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cfg = config.programs.nix-required-mounts;
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package = pkgs.nix-required-mounts;
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Mount =
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with lib;
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types.submodule {
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options.host = mkOption {
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type = types.str;
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description = "Host path to mount";
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};
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options.guest = mkOption {
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type = types.str;
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description = "Location in the sandbox to mount the host path at";
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};
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};
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Pattern =
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with lib.types;
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types.submodule (
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{ config, name, ... }:
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{
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options.onFeatures = lib.mkOption {
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type = listOf types.str;
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description = "Which requiredSystemFeatures should trigger relaxation of the sandbox";
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default = [ name ];
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};
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options.paths = lib.mkOption {
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type = listOf (oneOf [
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path
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Mount
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]);
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description = "A list of glob patterns, indicating which paths to expose to the sandbox";
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};
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options.unsafeFollowSymlinks = lib.mkEnableOption ''
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Instructs the hook to mount the symlink targets as well, when any of
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the `paths` contain symlinks. This may not work correctly with glob
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patterns.
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'';
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}
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);
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driverPaths = [
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pkgs.addDriverRunpath.driverLink
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# mesa:
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config.hardware.opengl.package
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# nvidia_x11, etc:
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] ++ config.hardware.opengl.extraPackages; # nvidia_x11
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defaults = {
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nvidia-gpu.onFeatures = package.allowedPatterns.nvidia-gpu.onFeatures;
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nvidia-gpu.paths = package.allowedPatterns.nvidia-gpu.paths ++ driverPaths;
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nvidia-gpu.unsafeFollowSymlinks = false;
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};
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in
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{
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meta.maintainers = with lib.maintainers; [ SomeoneSerge ];
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options.programs.nix-required-mounts = {
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enable = lib.mkEnableOption "Expose extra paths to the sandbox depending on derivations' requiredSystemFeatures";
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presets.nvidia-gpu.enable = lib.mkEnableOption ''
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Declare the support for derivations that require an Nvidia GPU to be
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available, e.g. derivations with `requiredSystemFeatures = [ "cuda" ]`.
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This mounts the corresponding userspace drivers and device nodes in the
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sandbox, but only for derivations that request these special features.
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You may extend or override the exposed paths via the
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`programs.nix-required-mounts.allowedPatterns.nvidia-gpu.paths` option.
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'';
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allowedPatterns =
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with lib.types;
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lib.mkOption rec {
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type = attrsOf Pattern;
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description = "The hook config, describing which paths to mount for which system features";
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default = { };
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defaultText = lib.literalExpression ''
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{
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opengl.paths = config.hardware.opengl.extraPackages ++ [
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config.hardware.opengl.package
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pkgs.addDriverRunpath.driverLink
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"/dev/dri"
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];
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}
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'';
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example.require-ipfs.paths = [ "/ipfs" ];
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example.require-ipfs.onFeatures = [ "ifps" ];
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};
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extraWrapperArgs = lib.mkOption {
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type = with lib.types; listOf str;
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default = [ ];
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description = "List of extra arguments (such as `--add-flags -v`) to pass to the hook's wrapper";
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};
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package = lib.mkOption {
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type = lib.types.package;
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default = package.override { inherit (cfg) allowedPatterns extraWrapperArgs; };
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description = "The final package with the final config applied";
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internal = true;
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};
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};
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config = lib.mkIf cfg.enable (
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lib.mkMerge [
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{ nix.settings.pre-build-hook = lib.getExe cfg.package; }
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(lib.mkIf cfg.presets.nvidia-gpu.enable {
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nix.settings.system-features = cfg.allowedPatterns.nvidia-gpu.onFeatures;
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programs.nix-required-mounts.allowedPatterns = {
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inherit (defaults) nvidia-gpu;
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};
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})
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]
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);
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}
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