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, 38 insertions, 0 deletions

diff --git a/pkgs/desktops/gnome-3/core/gcr/default.nix b/pkgs/desktops/gnome-3/core/gcr/default.nix
new file mode 100644
index 000000000000..55eebf77be59
--- /dev/null
+++ b/pkgs/desktops/gnome-3/core/gcr/default.nix
@@ -0,0 +1,28 @@
+{ stdenv, fetchurl, pkgconfig, intltool, gnupg, p11_kit, glib
+, libgcrypt, libtasn1, dbus_glib, gtk, pango, gdk_pixbuf, atk
+, gobjectIntrospection, makeWrapper, libxslt, vala_0_32, gnome3 }:
+
+stdenv.mkDerivation rec {
+  inherit (import ./src.nix fetchurl) name src;
+
+  buildInputs = [
+    pkgconfig intltool gnupg glib gobjectIntrospection libxslt
+    libgcrypt libtasn1 dbus_glib gtk pango gdk_pixbuf atk makeWrapper vala_0_32
+  ];
+
+  propagatedBuildInputs = [ p11_kit ];
+
+  #doCheck = true;
+
+  #enableParallelBuilding = true; issues on hydra
+
+  preFixup = ''
+    wrapProgram "$out/bin/gcr-viewer" \
+      --prefix XDG_DATA_DIRS : "$GSETTINGS_SCHEMAS_PATH"
+  '';
+
+  meta = with stdenv.lib; {
+    platforms = platforms.linux;
+    maintainers = gnome3.maintainers;
+  };
+}
diff --git a/pkgs/desktops/gnome-3/core/gcr/src.nix b/pkgs/desktops/gnome-3/core/gcr/src.nix
new file mode 100644
index 000000000000..d166f033266c
--- /dev/null
+++ b/pkgs/desktops/gnome-3/core/gcr/src.nix
@@ -0,0 +1,10 @@
+# Autogenerated by maintainers/scripts/gnome.sh update
+
+fetchurl: {
+  name = "gcr-3.20.0";
+
+  src = fetchurl {
+    url = mirror://gnome/sources/gcr/3.20/gcr-3.20.0.tar.xz;
+    sha256 = "90572c626d8a708225560c42b4421f7941315247fa1679d4ef569bde7f4bb379";
+  };
+}