Modernize nix-mode/package_github

Author: siraben

snippets/nix-mode/package_github

@@ -3,8 +3,9 @@
 # key: pg
 # --
 { stdenv, fetchFromGitHub$1 }:
+
 stdenv.mkDerivation rec {
-  name = "$2-\$\{version\}";
+  pname = "$2";
   version = "$3";
 
   src = fetchFromGitHub {
@@ -14,36 +15,46 @@ stdenv.mkDerivation rec {
     sha256 = "$6";
   };
 
-  buildInputs = [ $1];
+  buildInputs = [ $1 ];
 
-  meta = {
+  meta = with stdenv.lib; {
     description = "$7";
-    homepage = https://${8:github.com/$4/$2};
+    homepage = "https://${8:github.com/$4/$2}";
 
-    license = stdenv.lib.licenses.${9:$$
+    license = licenses.${9:$$
   (yas-choose-value '(
-    "agpl3"
-    "asl20"
-    "bsd2"
-    "bsd3"
-    "gpl2"
-    "gpl3"
-    "lgpl3"
-    "mit"
+  "asl20"
+  "bsd2"
+  "bsd3"
+  "free"
+  "gpl2Only"
+  "gpl2Plus"
+  "gpl3Only"
+  "gpl3Plus"
+  "isc"
+  "lgpl21Only"
+  "lgpl21Plus"
+  "lgpl2Only"
+  "lgpl2Plus"
+  "lgpl3Only"
+  "mit"
+  "mpl20"
+  "ofl"
+  "unfree"
   ))};
-    maintainers = [ stdenv.lib.maintainers.$10 ];
-    platforms = stdenv.lib.platforms.${11:$$
+    maintainers = with maintainers; [ $10 ];
+    platforms = platforms.${11:$$
   (yas-choose-value '(
-  "gnu"
   "linux"
+  "unix"
+  "all"
   "darwin"
+  "gnu"
   "freebsd"
   "openbsd"
   "netbsd"
   "cygwin"
   "illumos"
-  "unix"
-  "all"
   "none"
   "allBut"
   "mesaPlatforms"