esshader: init at unstable-2020-08-09

pkgs/tools/graphics/esshader/default.nix

@@ -0,0 +1,38 @@
+{ stdenv, fetchFromGitHub, pkg-config, libGL, glfw, soil, lib }:
+
+stdenv.mkDerivation {
+  pname = "esshader";
+  version = "unstable-2020-08-09";
+
+  src = fetchFromGitHub {
+    owner = "cmcsun";
+    repo = "esshader";
+    rev = "506eb02f3de52d3d1f4d81ac9ee145655216dee5";
+    sha256 = "sha256-euxJw7CqOwi6Ndzalps37kDr5oOIL3tZICCfmxsujfk=";
+  };
+
+  postPatch = ''
+    substituteInPlace config.mk \
+      --replace "-lGLESv2" "-lGL -lGLESv2"
+  '';
+
+  nativeBuildInputs = [
+    pkg-config
+  ];
+  buildInputs = [
+    libGL glfw soil
+  ];
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp -a esshader $out/bin/
+  '';
+
+  meta = with lib; {
+    description = "Offline ShaderToy-compatible GLSL shader viewer using OpenGL ES 2.0";
+    homepage = "https://github.com/cmcsun/esshader";
+    license = licenses.mit;
+    maintainers = with maintainers; [ astro ];
+    platforms = lib.platforms.unix;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -5670,6 +5670,8 @@ with pkgs;
 
   escrotum = callPackage ../tools/graphics/escrotum { };
 
+  esshader = callPackage ../tools/graphics/esshader { };
+
   etcher = callPackage ../tools/misc/etcher {
     electron = electron_12;
   };