nixpkgs/pkgs/by-name/oc/ocrad/package.nix
aleksana 571c71e6f7 treewide: migrate packages to pkgs/by-name, take 1
We are migrating packages that meet below requirements:

1. using `callPackage`
2. called path is a directory
3. overriding set is empty (`{ }`)
4. not containing path expressions other than relative path (to
makenixpkgs-vet happy)
5. not referenced by nix files outside of the directory, other
than`pkgs/top-level/all-packages.nix`
6. not referencing nix files outside of the directory
7. not referencing `default.nix` (since it's changed to `package.nix`)
8. `outPath` doesn't change after migration

The tool is here: https://github.com/Aleksanaa/by-name-migrate.
2024-11-09 20:04:51 +08:00

38 lines
1.1 KiB
Nix

{ fetchurl, lib, stdenv, lzip, texinfo }:
stdenv.mkDerivation rec {
pname = "ocrad";
version = "0.27";
src = fetchurl {
url = "mirror://gnu/ocrad/${pname}-${version}.tar.lz";
sha256 = "0divffvcaim89g4pvqs8kslbcxi475bcl3b4ynphf284k9zfdgx9";
};
nativeBuildInputs = [ lzip /* unpack */ ];
buildInputs = [ texinfo ];
doCheck = true;
meta = with lib; {
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 = licenses.gpl3Plus;
maintainers = with maintainers; [ pSub ];
platforms = platforms.unix;
mainProgram = "ocrad";
};
}