nixpkgs/pkgs/applications/misc/ocropus/default.nix

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{ stdenv, fetchhg, fetchurl, pythonPackages, curl }:
let
getmodel = name: sha256: {
src = fetchurl {
url = "http://iupr1.cs.uni-kl.de/~tmb/ocropus-models/${name}";
inherit sha256;
};
inherit name;
};
models = [
(getmodel "en-default.pyrnn.gz"
"1xyi3k3p81mfw0491gb1haisazfyi2i18f1wjs1m34ak39qfqjdp")
(getmodel "en-uw3-linerel-2.cmodel.gz"
"0zdw0db2znxxd4h7aa09506nkbxd1cfqacxzyzlx42bjn951wcpw")
(getmodel "en-mixed-3.ngraphs.gz"
"1fqw7pxmjwapirp9xv3b0gn9pk53q4740qn5dw4wxfxk9dpp9lr4")
(getmodel "en-space.model.gz"
"0w5hnjm6rz5iiw1p2yixj147ifq11s9jfzrxk4v4xxmcyn365096")
(getmodel "en-mixed.lineest.gz"
"0skrziksn3zb3g8588y7jd10pnl2pzrby0119ac0awapzzg9vkvw")
(getmodel "uw3unlv.pyrnn.gz"
"0g08q9cjxxx3mg1jn4654nalxr56y2jq1h33pwxrj5lrckr7grb9")
(getmodel "en-uw3unlv-perchar.cmodel.gz"
"1izvm0wkb2vh58hjp59fw97drv17zdzrw6mz3aanrg5ax6fnfadk")
(getmodel "gradient.lineest.gz"
"1bw9hj9byjxi31rjh2xiysnx8c72jz0npxa54xgjwsqg7ihl8jzw")
(getmodel "en-mixed-round1.lineest.gz"
"1fjkygyrg4ng7kx4iqa4yhgvmw1zq72p3q5p0hcb2xxhqc04vx7c")
(getmodel "frakant.pyrnn.gz"
"0i1k95f2a8qlc6m7qq11pmjfcimyrjsfjvv20nrs2ygp9pwskmxp")
(getmodel "fraktur.pyrnn.gz"
"1wlwvxn91ilgmlri1hj81arl3mbzxc24ycdnkf5icq4hdi4c6y8b")
];
in
pythonPackages.buildPythonPackage rec {
name = "ocropus-${version}";
version = "20130905";
src = fetchhg {
url = "https://code.google.com/p/ocropus.ocropy";
tag = "a6e0fbd820ce";
sha256 = "1s0v0gd6psfjp6lghwl2dj49h18mgf2n2z8hqzw8430nzhglnlvr";
};
buildInputs = with pythonPackages; [ curl numpy scipy pillow matplotlib ];
enableParallelBuilding = true;
preConfigure = with stdenv.lib; ''
${concatStrings (map (x: "ln -s ${x.src} models/${x.name};") models)}
${pythonPackages.python}/bin/${pythonPackages.python.executable} setup.py download_models
'';
meta = with stdenv.lib; {
description = "Open source document analysis and OCR system";
license = licenses.asl20;
homepage = https://code.google.com/p/ocropus/;
maintainers = with maintainers; [ iElectric viric ];
platforms = platforms.linux;
};
}