gnome3: only maintain single GNOME 3 package set (#29397)

* gnome3: only maintain single GNOME 3 package set

GNOME 3 was split into 3.10 and 3.12 in #2694. Unfortunately, we barely have the resources
to update a single version of GNOME. Maintaining multiple versions just does not make sense.
Additionally, it makes viewing history using most Git tools bothersome.

This commit renames `pkgs/desktops/gnome-3/3.24` to `pkgs/desktops/gnome-3`, removes
the config variable for choosing packageset (`environment.gnome3.packageSet`), updates
the hint in maintainer script, and removes the `gnome3_24` derivation from `all-packages.nix`.

Closes: #29329

* maintainers/scripts/gnome: Use fixed GNOME 3 directory

Since we now allow only a single GNOME 3 package set, specifying
the working directory is not necessary.

This commit sets the directory to `pkgs/desktops/gnome-3`.

1 files changed, 30 insertions, 0 deletions

diff --git a/pkgs/desktops/gnome-3/core/dconf/default.nix b/pkgs/desktops/gnome-3/core/dconf/default.nix
new file mode 100644
index 000000000000..9200c4180bd2
--- /dev/null
+++ b/pkgs/desktops/gnome-3/core/dconf/default.nix
@@ -0,0 +1,30 @@
+{ stdenv, fetchurl, vala_0_32, libxslt, pkgconfig, glib, dbus_glib, gnome3
+, libxml2, intltool, docbook_xsl_ns, docbook_xsl, makeWrapper }:
+
+let
+  majorVersion = "0.26";
+in
+stdenv.mkDerivation rec {
+  name = "dconf-${version}";
+  version = "${majorVersion}.0";
+
+  src = fetchurl {
+    url = "mirror://gnome/sources/dconf/${majorVersion}/${name}.tar.xz";
+    sha256 = "1jaqsr1r0grpd25rbsc2v3vb0sc51lia9w31wlqswgqsncp2k0w6";
+  };
+
+  outputs = [ "out" "lib" "dev" ];
+
+  buildInputs = [ vala_0_32 libxslt pkgconfig glib dbus_glib gnome3.gtk libxml2
+                  intltool docbook_xsl docbook_xsl_ns makeWrapper ];
+
+  postConfigure = stdenv.lib.optionalString stdenv.isDarwin ''
+    substituteInPlace client/Makefile \
+      --replace "-soname=libdconf.so.1" "-install_name,libdconf.so.1"
+  '';
+
+  meta = with stdenv.lib; {
+    platforms = platforms.linux ++ platforms.darwin;
+    maintainers = gnome3.maintainers;
+  };
+}