pkgs/development/libraries/libimagequant/default.nix


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51

{ lib, stdenv, fetchFromGitHub, fetchurl, rust, rustPlatform, cargo-c, python3 }:

let
  rustTargetPlatformSpec = rust.toRustTargetSpec stdenv.hostPlatform;
in
rustPlatform.buildRustPackage rec {
  pname = "libimagequant";
  version = "4.2.1";

  src = fetchFromGitHub {
    owner = "ImageOptim";
    repo = pname;
    rev = version;
    hash = "sha256-a5TztgNFRV9BVERpHI33ZEYwfOR46F9FzmbquzwGq3k=";
  };

  cargoLock = {
    lockFile = ./Cargo.lock;
  };

  postPatch = ''
    ln -s ${./Cargo.lock} Cargo.lock
  '';

  nativeBuildInputs = [ cargo-c ];

  postBuild = ''
    pushd imagequant-sys
    ${rust.envVars.setEnv} cargo cbuild --release --frozen --prefix=${placeholder "out"} --target ${rustTargetPlatformSpec}
    popd
  '';

  postInstall = ''
    pushd imagequant-sys
    ${rust.envVars.setEnv} cargo cinstall --release --frozen --prefix=${placeholder "out"} --target ${rustTargetPlatformSpec}
    popd
  '';

  passthru.tests = {
    inherit (python3.pkgs) pillow;
  };

  meta = with lib; {
    homepage = "https://pngquant.org/lib/";
    description = "Image quantization library";
    longDescription = "Small, portable C library for high-quality conversion of RGBA images to 8-bit indexed-color (palette) images.";
    license = licenses.gpl3Plus;
    platforms = platforms.unix;
    maintainers = with maintainers; [ ma9e marsam ];
  };
}