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`.

2 files changed, 29 insertions, 0 deletions

diff --git a/pkgs/desktops/gnome-3/games/iagno/default.nix b/pkgs/desktops/gnome-3/games/iagno/default.nix
new file mode 100644
index 000000000000..1b6f08d1fd65
--- /dev/null
+++ b/pkgs/desktops/gnome-3/games/iagno/default.nix
@@ -0,0 +1,19 @@
+{ stdenv, fetchurl, pkgconfig, gtk3, gnome3, gdk_pixbuf, librsvg, wrapGAppsHook
+, intltool, itstool, libcanberra_gtk3, libxml2, dconf }:
+
+stdenv.mkDerivation rec {
+  inherit (import ./src.nix fetchurl) name src;
+
+  buildInputs = [ pkgconfig gtk3 gnome3.defaultIconTheme gdk_pixbuf librsvg
+                  dconf libxml2 libcanberra_gtk3 wrapGAppsHook itstool intltool ];
+
+  enableParallelBuilding = true;
+
+  meta = with stdenv.lib; {
+    homepage = https://wiki.gnome.org/Apps/Iagno;
+    description = "Computer version of the game Reversi, more popularly called Othello";
+    maintainers = gnome3.maintainers;
+    license = licenses.gpl2;
+    platforms = platforms.linux;
+  };
+}
diff --git a/pkgs/desktops/gnome-3/games/iagno/src.nix b/pkgs/desktops/gnome-3/games/iagno/src.nix
new file mode 100644
index 000000000000..6c20a8f7844a
--- /dev/null
+++ b/pkgs/desktops/gnome-3/games/iagno/src.nix
@@ -0,0 +1,10 @@
+# Autogenerated by maintainers/scripts/gnome.sh update
+
+fetchurl: {
+  name = "iagno-3.22.0";
+
+  src = fetchurl {
+    url = mirror://gnome/sources/iagno/3.22/iagno-3.22.0.tar.xz;
+    sha256 = "e7070c55f1f74cd9345388ee120f0e6cc47392868c2601664c26a0fa2672fe13";
+  };
+}