1 files changed, 129 insertions, 0 deletions
diff --git a/pkgs/development/python-modules/rapidocr-onnxruntime/default.nix b/pkgs/development/python-modules/rapidocr-onnxruntime/default.nix
new file mode 100644
index 0000000000000..48209fc9efca3
--- /dev/null
+++ b/pkgs/development/python-modules/rapidocr-onnxruntime/default.nix
@@ -0,0 +1,129 @@
+{
+  lib,
+  stdenv,
+  buildPythonPackage,
+  fetchFromGitHub,
+
+  fetchzip,
+  substitute,
+  pythonRelaxDepsHook,
+  pytestCheckHook,
+
+  setuptools,
+  pyclipper,
+  opencv4,
+  numpy,
+  six,
+  shapely,
+  pyyaml,
+  pillow,
+  onnxruntime,
+}:
+let
+  version = "1.3.22";
+
+  src = fetchFromGitHub {
+    owner = "RapidAI";
+    repo = "RapidOCR";
+    rev = "v${version}";
+    hash = "sha256-8h4DFhnI9imr+bYQZdlrl8UKUdpwnGK+SGxLXSMmcag=";
+  };
+
+  models = fetchzip {
+    url = "https://github.com/RapidAI/RapidOCR/releases/download/v1.1.0/required_for_whl_v1.3.0.zip";
+    hash = "sha256-j/0nzyvu/HfNTt5EZ+2Phe5dkyPOdQw/OZTz0yS63aA=";
+    stripRoot = false;
+  } + "/required_for_whl_v1.3.0/resources/models";
+in
+buildPythonPackage {
+  pname = "rapidocr-onnxruntime";
+  inherit version src;
+  pyproject = true;
+
+  sourceRoot = "${src.name}/python";
+
+  # HACK:
+  # Upstream uses a very unconventional structure to organize the packages, and we have to coax the
+  # existing infrastructure to work with it.
+  # See https://github.com/RapidAI/RapidOCR/blob/02829ef986bc2a5c4f33e9c45c9267bcf2d07a1d/.github/workflows/gen_whl_to_pypi_rapidocr_ort.yml#L80-L92
+  # for the "intended" way of building this package.
+
+  # The setup.py supplied by upstream tries to determine the current version by
+  # fetching the latest version of the package from PyPI, and then bumping the version number.
+  # This is not allowed in the Nix build environment as we do not have internet access,
+  # hence we patch that out and get the version from the build environment directly.
+  patches = [
+    (substitute {
+      src = ./setup-py-override-version-checking.patch;
+      substitutions = [
+        "--subst-var-by"
+        "version"
+        version
+      ];
+    })
+  ];
+
+  postPatch = ''
+    mv setup_onnxruntime.py setup.py
+    mkdir -p rapidocr_onnxruntime/models
+
+    ln -s ${models}/* rapidocr_onnxruntime/models
+
+    # Magic patch from upstream - what does this even do??
+    echo "from .rapidocr_onnxruntime.main import RapidOCR, VisRes" > __init__.py
+  '';
+
+  nativeBuildInputs = [ pythonRelaxDepsHook ];
+
+  # Upstream expects the source files to be under rapidocr_onnxruntime/rapidocr_onnxruntime
+  # instead of rapidocr_onnxruntime for the wheel to build correctly.
+  preBuild = ''
+    mkdir rapidocr_onnxruntime_t
+    mv rapidocr_onnxruntime rapidocr_onnxruntime_t
+    mv rapidocr_onnxruntime_t rapidocr_onnxruntime
+  '';
+
+  # Revert the above hack
+  postBuild = ''
+    mv rapidocr_onnxruntime rapidocr_onnxruntime_t
+    mv rapidocr_onnxruntime_t/* .
+  '';
+
+  build-system = [ setuptools ];
+
+  dependencies = [
+    pyclipper
+    opencv4
+    numpy
+    six
+    shapely
+    pyyaml
+    pillow
+    onnxruntime
+  ];
+
+  # Remove because we have adopted the `opencv4` as an attribute name.
+  pythonRemoveDeps = [ "opencv-python" ];
+
+  pythonImportsCheck = [ "rapidocr_onnxruntime" ];
+
+  nativeCheckInputs = [ pytestCheckHook ];
+
+  # These are tests for different backends.
+  disabledTestPaths = [
+    "tests/test_vino.py"
+    "tests/test_paddle.py"
+  ];
+
+  meta = {
+    # This seems to be related to https://github.com/microsoft/onnxruntime/issues/10038
+    # Also some related issue: https://github.com/NixOS/nixpkgs/pull/319053#issuecomment-2167713362
+    broken = (stdenv.isLinux && stdenv.isAarch64);
+    changelog = "https://github.com/RapidAI/RapidOCR/releases/tag/v${version}";
+    description = "Cross platform OCR Library based on OnnxRuntime";
+    homepage = "https://github.com/RapidAI/RapidOCR";
+    license = with lib.licenses; [ asl20 ];
+    maintainers = with lib.maintainers; [ pluiedev ];
+    mainProgram = "rapidocr_onnxruntime";
+  };
+}