push sheeet

pkgs/by-name/oc/ocrad/package.nix

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+{
+  lib,
+  stdenv,
+  fetchurl,
+  lzip,
+  texinfo,
+  libpng,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "ocrad";
+  version = "0.29";
+
+  src = fetchurl {
+    url = "mirror://gnu/ocrad/ocrad-${finalAttrs.version}.tar.lz";
+    hash = "sha256-ESAMxrC3uhaISnLcy1jvaU96omzSsgQeVVWA8GTS2ek=";
+  };
+
+  nativeBuildInputs = [
+    lzip # unpack
+  ];
+
+  buildInputs = [
+    texinfo
+    libpng
+  ];
+
+  doCheck = true;
+
+  meta = {
+    description = "Optical character recognition (OCR) program & library";
+    longDescription = ''
+      GNU Ocrad is an OCR (Optical Character Recognition) program based on
+      a feature extraction method.  It reads images in pbm (bitmap), pgm
+      (greyscale) or ppm (color) formats and produces text in byte (8-bit)
+      or UTF-8 formats.
+
+      Also includes a layout analyser able to separate the columns or
+      blocks of text normally found on printed pages.
+
+      Ocrad can be used as a stand-alone console application, or as a
+      backend to other programs.
+    '';
+
+    license = lib.licenses.gpl3Plus;
+    maintainers = with lib.maintainers; [ pSub ];
+    platforms = lib.platforms.unix;
+    mainProgram = "ocrad";
+  };
+})