greendeck/flake.nix

{
  description = "My Streamdeck";

  inputs = {
    nixpkgs = {
      url = "nixpkgs/nixos-22.11";
    };
    flake-utils = {
      url = "github:numtide/flake-utils";
    };
  };
  outputs = { self, nixpkgs, flake-utils, ... }@inputs:
    flake-utils.lib.eachDefaultSystem
      (system:
        let
          pkgs = import nixpkgs {
            inherit system;
          };
        in
        {
          devShells.default =
            let
              python = pkgs.python310.withPackages (ps: with ps; [
                poetry
              ]);
            in
            pkgs.mkShell {
              buildInputs = [
                python
                pkgs.hidapi
                pkgs.libusb1
              ];
              shellHook = ''
                export HIDAPI_HOME=${pkgs.hidapi}
                export MAGICK_HOME=${pkgs.imagemagickBig}
                export POETRY_VIRTUALENVS_IN_PROJECT=true
                export PS1='\[\033[1;34m\][greendeck:\w]\$\[\033[0m\] '
                export PATH=''$(pwd)/.venv/bin:$PATH
              '';
            };
          packages = {
            greendeck = pkgs.poetry2nix.mkPoetryApplication {
              python = pkgs.python310;
              projectDir = ./.;
              propagatedBuildInputs = [
                pkgs.hidapi
              ];
              postPatch = ''
                substituteInPlace greendeck/lib/hidapi/library.py \
                  --replace \
                    'os.getenv("HIDAPI_LIBRARY")' \
                    '"${pkgs.hidapi}/lib/libhidapi-libusb.so.0"'
              '';
              overrides = pkgs.poetry2nix.overrides.withDefaults
                (
                  self: super: {
                    wand = super.wand.overridePythonAttrs
                      (
                        old: {
                          postPatch = ''
                            substituteInPlace wand/api.py \
                              --replace \
                                "os.environ.get('MAGICK_HOME')" \
                                "'${pkgs.imagemagickBig}'"
                          '';
                          propagatedBuildInputs = old.propagatedBuildInputs ++ [ pkgs.imagemagickBig ];
                        }
                      );
                    types-deprecated = super.types-deprecated.overridePythonAttrs (
                      old: {
                        buildInputs = old.buildInputs ++ [ pkgs.python310Packages.setuptools ];
                      }
                    );
                    pydantic-yaml = super.pydantic-yaml.overridePythonAttrs (
                      old: {
                        buildInputs = old.buildInputs ++ [ pkgs.python310Packages.setuptools ];
                      }
                    );
                    pydocstringformatter = super.pydocstringformatter.overridePythonAttrs (
                      old: {
                        buildInputs = old.buildInputs ++ [ pkgs.python310Packages.setuptools ];
                      }
                    );
                  }
                );
            };
          };
          default = self.packages.${system}.greendeck;
        }
      );
}