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, 20 insertions, 0 deletions

diff --git a/pkgs/desktops/gnome-3/games/gnome-robots/default.nix b/pkgs/desktops/gnome-3/games/gnome-robots/default.nix
new file mode 100644
index 00000000000..9eafb166eee
--- /dev/null
+++ b/pkgs/desktops/gnome-3/games/gnome-robots/default.nix
@@ -0,0 +1,20 @@
+{ stdenv, fetchurl, pkgconfig, gnome3, gtk3, wrapGAppsHook
+, librsvg, libcanberra_gtk3, intltool, itstool, libxml2, libgames-support
+, libgee}:
+
+stdenv.mkDerivation rec {
+  inherit (import ./src.nix fetchurl) name src;
+
+  buildInputs = [
+    pkgconfig gtk3 wrapGAppsHook intltool itstool librsvg libcanberra_gtk3
+    libxml2 gnome3.defaultIconTheme libgames-support libgee
+  ];
+
+  meta = with stdenv.lib; {
+    homepage = https://wiki.gnome.org/Apps/Robots;
+    description = "Avoid the robots and make them crash into each other";
+    maintainers = gnome3.maintainers;
+    license = licenses.gpl2;
+    platforms = platforms.linux;
+  };
+}