dconf: format with nixpkgs-fmt

Also:

* use pname + version instead of name
* reorder attributes
* change platforms linux + darwin → unix

pkgs/development/libraries/dconf/default.nix

@@ -1,28 +1,51 @@
-{ stdenv, fetchurl, meson, ninja, python3, vala, libxslt, pkgconfig, glib, bash-completion, dbus, gnome3
-, libxml2, gtk-doc, docbook_xsl, docbook_xml_dtd_42 }:
+{ stdenv
+, fetchurl
+, meson
+, ninja
+, python3
+, vala
+, libxslt
+, pkg-config
+, glib
+, bash-completion
+, dbus
+, gnome3
+, libxml2
+, gtk-doc
+, docbook-xsl-nons
+, docbook_xml_dtd_42
+}:
 
-let
-  pname = "dconf";
-in
 stdenv.mkDerivation rec {
-  name = "${pname}-${version}";
+  pname = "dconf";
   version = "0.36.0";
 
+  outputs = [ "out" "lib" "dev" "devdoc" ];
+
   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 = "0bfs069pjv6lhp7xrzmrhz3876ay2ryqxzc6mlva1hhz34ibprlz";
   };
 
-  postPatch = ''
-    chmod +x meson_post_install.py tests/test-dconf.py
-    patchShebangs meson_post_install.py
-    patchShebangs tests/test-dconf.py
-  '';
-
-  outputs = [ "out" "lib" "dev" "devdoc" ];
+  nativeBuildInputs = [
+    meson
+    ninja
+    vala
+    pkg-config
+    python3
+    libxslt
+    libxml2
+    glib
+    gtk-doc
+    docbook-xsl-nons
+    docbook_xml_dtd_42
+  ];
 
-  nativeBuildInputs = [ meson ninja vala pkgconfig python3 libxslt libxml2 glib gtk-doc docbook_xsl docbook_xml_dtd_42 ];
-  buildInputs = [ glib bash-completion dbus ];
+  buildInputs = [
+    glib
+    bash-completion
+    dbus
+  ];
 
   mesonFlags = [
     "--sysconfdir=/etc"
@@ -31,6 +54,12 @@ stdenv.mkDerivation rec {
 
   doCheck = !stdenv.isAarch32 && !stdenv.isAarch64 && !stdenv.isDarwin;
 
+  postPatch = ''
+    chmod +x meson_post_install.py tests/test-dconf.py
+    patchShebangs meson_post_install.py
+    patchShebangs tests/test-dconf.py
+  '';
+
   passthru = {
     updateScript = gnome3.updateScript {
       packageName = pname;
@@ -40,7 +69,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     homepage = "https://wiki.gnome.org/Projects/dconf";
     license = licenses.lgpl21Plus;
-    platforms = platforms.linux ++ platforms.darwin;
+    platforms = platforms.unix;
     maintainers = teams.gnome.members;
   };
 }