Merge pull request #94892 from toonn/font-joypixels-emoji

pkgs/data/fonts/joypixels/default.nix

@@ -1,24 +1,103 @@
-{ stdenv, fetchurl }:
+{ stdenv
+, fetchurl
+, config
+, acceptLicense ? config.joypixels.acceptLicense or false
+}:
+
+let
+  inherit (stdenv.hostPlatform.parsed) kernel;
+
+  systemSpecific = {
+    darwin = rec {
+      systemTag =  "nix-darwin";
+      capitalized = systemTag;
+      fontFile = "JoyPixels-SBIX.ttf";
+    };
+  }.${kernel.name} or rec {
+    systemTag = "nixos";
+    capitalized = "NixOS";
+    fontFile = "joypixels-android.ttf";
+  };
+
+  joypixels-free-license = with systemSpecific; {
+    spdxId = "LicenseRef-JoyPixels-Free-6.0";
+    fullName = "JoyPixels Free License Agreement 6.0";
+    url = "https://cdn.joypixels.com/distributions/${systemTag}/license/free-license.pdf";
+    free = false;
+  };
+
+  joypixels-license-appendix = with systemSpecific; {
+    spdxId = "LicenseRef-JoyPixels-NixOS-Appendix";
+    fullName = "JoyPixels ${capitalized} License Appendix";
+    url = "https://cdn.joypixels.com/distributions/${systemTag}/appendix/joypixels-license-appendix.pdf";
+    free = false;
+  };
+
+  throwLicense = throw ''
+    Use of the JoyPixels font requires acceptance of the license.
+      - ${joypixels-free-license.fullName} [1]
+      - ${joypixels-license-appendix.fullName} [2]
+
+    You can express acceptance by setting acceptLicense to true in your
+    configuration. Note that this is not a free license so it requires allowing
+    unfree licenses.
+
+    configuration.nix:
+      nixpkgs.config.allowUnfree = true;
+      nixpkgs.config.joypixels.acceptLicense = true;
+
+    config.nix:
+      allowUnfree = true;
+      joypixels.acceptLicense = true;
+
+    [1]: ${joypixels-free-license.url}
+    [2]: ${joypixels-license-appendix.url}
+  '';
+
+in
 
 stdenv.mkDerivation rec {
   pname = "joypixels";
   version = "6.0.0";
 
-  src = fetchurl {
-    url = "https://cdn.joypixels.com/arch-linux/font/${version}/joypixels-android.ttf";
-    sha256 = "1vxqsqs93g4jyp01r47lrpcm0fmib2n1vysx32ksmfxmprimb75s";
-  };
+  src = assert !acceptLicense -> throwLicense;
+    with systemSpecific; fetchurl {
+      name = fontFile;
+      url = "https://cdn.joypixels.com/distributions/${systemTag}/font/${version}/${fontFile}";
+      sha256 = {
+        darwin = "1s1dibgpv4lc9cwbgykgwjxxhg2rbn5g9fyd10r6apj9xhfn8cyn";
+      }.${kernel.name} or "1vxqsqs93g4jyp01r47lrpcm0fmib2n1vysx32ksmfxmprimb75s";
+    };
 
   dontUnpack = true;
 
-  installPhase = ''
-    install -Dm644 $src $out/share/fonts/truetype/joypixels.ttf
+  installPhase = with systemSpecific; ''
+    runHook preInstall
+
+    install -Dm644 $src $out/share/fonts/truetype/${fontFile}
+
+    runHook postInstall
   '';
 
   meta = with stdenv.lib; {
-    description = "Emoji as a Service (formerly EmojiOne)";
-    homepage = "https://www.joypixels.com/";
-    license = licenses.unfree;
-    maintainers = with maintainers; [ jtojnar ];
+    description = "The finest emoji you can use legally (formerly EmojiOne)";
+    longDescription = ''
+      New for 2020! JoyPixels 6.0 includes 3,342 originally crafted icon
+      designs and is 100% Unicode 13 compatible. We offer the largest selection
+      of files ranging from png, svg, iconjar, sprites, and fonts.
+    '';
+    homepage = "https://www.joypixels.com/fonts";
+    license =
+      let
+        free-license = joypixels-free-license;
+        appendix = joypixels-license-appendix;
+      in with systemSpecific; {
+        spdxId = "LicenseRef-JoyPixels-Free-6.0-with-${capitalized}-Appendix";
+        fullName = "${free-license.fullName} with ${appendix.fullName}";
+        url = free-license.url;
+        appendixUrl = appendix.url;
+        free = false;
+      };
+    maintainers = with maintainers; [ toonn jtojnar ];
   };
 }