all: refactor to follow RFC140

pkgs/by-name/sp/spotify-ripper/package.nix

@@ -0,0 +1,73 @@
+{ lib
+, fetchFromGitHub
+
+, python3Packages
+, lame
+
+, aacSupport ? false
+, faac
+, alacSupport ? false
+, libav
+, flacSupport ? false
+, flac
+, m4aSupport ? false
+, mp4Support ? false
+, fdk-aac-encoder
+, oggSupport ? false
+, vorbisTools
+, opusSupport ? false
+, opusTools
+}:
+
+assert aacSupport -> faac.meta.available;
+assert alacSupport -> libav.meta.available;
+assert flacSupport -> flac.meta.available;
+assert m4aSupport || mp4Support -> fdk-aac-encoder.meta.available;
+assert oggSupport -> vorbisTools.meta.available;
+assert opusSupport -> opusTools.meta.available;
+
+python3Packages.buildPythonApplication rec {
+  pname = "spotify-ripper";
+  version = "20210724.5bfd3f7";
+
+  src = fetchFromGitHub {
+    owner = "ast261";
+    repo = pname;
+    rev = "5bfd3f7a52f2767b433fd315145409837a3c33f0";
+    sha256 = "sha256-LLunGzs9Mg4S00Su260b+M5w/XwS+kICl/YXQdR/cPI=";
+  };
+
+  propagatedBuildInputs = (with python3Packages; [
+    colorama
+    mutagen
+    pyspotify
+    requests
+    schedule
+    setuptools
+    spotipy
+  ]) ++ [
+    lame
+    (if flacSupport then flac else null)
+    (if alacSupport then libav else null)
+    (if aacSupport then faac else null)
+    (if (m4aSupport || mp4Support) then fdk-aac-encoder else null)
+    (if oggSupport then vorbisTools else null)
+    (if opusSupport then opusTools else null)
+  ];
+
+  # Remove impure executables.
+  patches = [ ./fix-setup.patch ];
+
+  meta = with lib; {
+    description = "Rip Spotify URIs to audio files, including ID3 tags and cover art";
+    longDescription = ''
+      Spotify-ripper is a small ripper script for Spotify that rips Spotify URIs
+      to audio files and includes ID3 tags and cover art. By default
+      spotify-ripper will encode to MP3 files, but includes the ability to rip
+      to WAV, FLAC, Ogg Vorbis, Opus, AAC, and MP4/M4A.
+    '';
+    homepage = "https://github.com/hbashton/spotify-ripper";
+    # spotify-ripper itself is MIT, but the upstream libspotify is unfree.
+    license = licenses.unfree;
+  };
+}