gdk-pixbuf: clean up

* format with nixpkgs-fmt
* reorder the attributes
* replace aliases
* inline pname & version
* add GNOME maintainers
* update homepage from devdocs to repo

pkgs/development/libraries/gdk-pixbuf/default.nix

@@ -1,23 +1,44 @@
-{ stdenv, fetchurl, nixosTests, fixDarwinDylibNames, meson, ninja, pkgconfig, gettext, python3, libxml2, libxslt, docbook_xsl
-, docbook_xml_dtd_43, gtk-doc, glib, libtiff, libjpeg, libpng, libX11, gnome3
-, gobject-introspection, doCheck ? false, makeWrapper
+{ stdenv
+, fetchurl
+, nixosTests
+, fixDarwinDylibNames
+, meson
+, ninja
+, pkg-config
+, gettext
+, python3
+, libxml2
+, libxslt
+, docbook-xsl-nons
+, docbook_xml_dtd_43
+, gtk-doc
+, glib
+, libtiff
+, libjpeg
+, libpng
+, libX11
+, gnome3
+, gobject-introspection
+, doCheck ? false
+, makeWrapper
 , fetchpatch
 }:
 
-let
+stdenv.mkDerivation rec {
   pname = "gdk-pixbuf";
   version = "2.40.0";
-in stdenv.mkDerivation rec {
-  name = "${pname}-${version}";
+
+  outputs = [ "out" "dev" "man" "devdoc" "installedTests" ];
 
   src = fetchurl {
-    url = "mirror://gnome/sources/${pname}/${stdenv.lib.versions.majorMinor version}/${name}.tar.xz";
+    url = "mirror://gnome/sources/${pname}/${stdenv.lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
     sha256 = "1rnlx9yfw970maxi2x6niaxmih5la11q1ilr7gzshz2kk585k0hm";
   };
 
   patches = [
     # Move installed tests to a separate output
     ./installed-tests-path.patch
+
     # Temporary until the fix is released.
     (fetchpatch {
       name = "tests-circular-table.patch";
@@ -26,20 +47,35 @@ in stdenv.mkDerivation rec {
     })
   ];
 
-  outputs = [ "out" "dev" "man" "devdoc" "installedTests" ];
-
-  setupHook = ./setup-hook.sh;
+  nativeBuildInputs = [
+    meson
+    ninja
+    pkg-config
+    gettext
+    python3
+    libxml2
+    libxslt
+    docbook-xsl-nons
+    docbook_xml_dtd_43
+    gtk-doc
+    gobject-introspection
+    makeWrapper
+    glib
+  ] ++ stdenv.lib.optional stdenv.isDarwin [
+    fixDarwinDylibNames
+  ];
 
   # !!! We might want to factor out the gdk-pixbuf-xlib subpackage.
-  buildInputs = [ libX11 ];
+  buildInputs = [
+    libX11
+  ];
 
-  nativeBuildInputs = [
-    meson ninja pkgconfig gettext python3 libxml2 libxslt docbook_xsl docbook_xml_dtd_43
-    gtk-doc gobject-introspection makeWrapper glib
-  ]
-    ++ stdenv.lib.optional stdenv.isDarwin fixDarwinDylibNames;
-
-  propagatedBuildInputs = [ glib libtiff libjpeg libpng ];
+  propagatedBuildInputs = [
+    glib
+    libtiff
+    libjpeg
+    libpng
+  ];
 
   mesonFlags = [
     "-Ddocs=true"
@@ -87,6 +123,8 @@ in stdenv.mkDerivation rec {
   # The tests take an excessive amount of time (> 1.5 hours) and memory (> 6 GB).
   inherit doCheck;
 
+  setupHook = ./setup-hook.sh;
+
   passthru = {
     updateScript = gnome3.updateScript {
       packageName = pname;
@@ -102,8 +140,8 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A library for image loading and manipulation";
-    homepage = "http://library.gnome.org/devel/gdk-pixbuf/";
-    maintainers = [ maintainers.eelco ];
+    homepage = "https://gitlab.gnome.org/GNOME/gdk-pixbuf";
+    maintainers = [ maintainers.eelco ] ++ teams.gnome.members;
     license = licenses.lgpl21;
     platforms = platforms.unix;
   };