camera works! - fixed pyzbar

flake.nix

@@ -21,7 +21,9 @@
  };
 
  pkgs = nixpkgs.legacyPackages.x86_64-linux;
+ lib = pkgs.lib;
  python = pkgs.python3;
+ stdenv = pkgs.python311Packages.stdenv;
 
  # embit is not currently available in nixpkgs, so we build it here
  embit = pkgs.python3Packages.buildPythonPackage rec {
@@ -54,7 +56,7 @@
  ];
  };
 
- # dataclasses (old version?)
+ # dataclasses (this might not be necessary since dataclasses are native to python 3.11 now)
  dataclasses = pkgs.python3Packages.buildPythonPackage rec {
  pname = "dataclasses";
  version = "0.8";
@@ -68,12 +70,44 @@
  ];
  };
 
+ # pyzbar - using https://github.com/enteropositivo/pyzbar.git@a52ff0b2e8ff714ba53bbf6461c89d672a304411#egg=pyzbar
+ # by modifying https://github.com/NixOS/nixpkgs/blob/nixos-unstable/pkgs/development/python-modules/pyzbar/default.nix#L48
+ pyzbar-seedsigner = pkgs.python3Packages.buildPythonPackage rec {
+ pname = "pyzbar";
+ version = "0.1.10-ss";
+ pyproject = true;
+ src = pkgs.fetchFromGitHub {
+ inherit pname version;
+ owner = "enteropositivo";
+ repo = "pyzbar";
+ rev = "master";
+ hash = "sha256-M51MclbldqTVUffWNRNFDTFweIwK12fpbTYGid1Aa5s=";
+ };
+
+ buildInputs = [ pkgs.zbar ];
+
+ nativeBuildInputs = [
+ pkgs.python3Packages.setuptools
+ ];
+
+ propagatedBuildInputs = with pkgs.python3Packages; [ pillow numpy ];
+
+ # find_library doesn't return an absolute path
+ # https://github.com/NixOS/nixpkgs/issues/7307
+ postPatch = ''
+ substituteInPlace pyzbar/zbar_library.py \
+ --replace \
+ "find_library('zbar')" \
+ '"${lib.getLib pkgs.zbar}/lib/libzbar${stdenv.hostPlatform.extensions.sharedLibrary}"'
+ '';
+ };
+
  # now we build our actual environment
  pythonEnv = pkgs.python3.withPackages (ps: with ps; [
  embit
  urtypes
  dataclasses
- pyzbar
+ pyzbar-seedsigner
  pillow
  qrcode
  tkinter