adwaita-icon-theme 3.14.1

Update gnome-icon-theme to 3.14.1 and alias adwaita-icon-theme.

In GNOME 3.14, gnome-icon-theme and gnome-icon-theme-symbolic were merged into
adwaita-icon-theme, because the symbolic icons are no longer considered
optional.[1]

Moving to the latest stable version of this package fixes the lack of symbolic
icons for GTK+3 in Homebrew.

The tests I've written are simple sanity checks that ensure certain files were
created in the install process.
Someone with GTK+3 knowledge could probably write better ones that check if GTK+
properly detects the icon files.

[1]: https://mail.gnome.org/archives/desktop-devel-list/2014-April/msg00086.html

The gnome-icon-theme-symbolic package (merged into adwaita-icon-theme, we call
it gnome-icon-theme for historic reasons) requires librsvg to generate PNG files
from the symbolic icon SVG files.

(This was not necessary beforehand, because all icons in the original
gnome-icon-theme were PNGs)

Closes #37306.

Signed-off-by: Tim D. Smith <git@tim-smith.us>

Library/Aliases/adwaita-icon-theme

@@ -0,0 +1 @@
+../Formula/gnome-icon-theme.rb

Library/Formula/gnome-icon-theme.rb

@@ -1,10 +1,7 @@
-require "formula"
-
 class GnomeIconTheme < Formula
   homepage "https://developer.gnome.org"
-  url "http://ftp.gnome.org/pub/GNOME/sources/gnome-icon-theme/3.12/gnome-icon-theme-3.12.0.tar.xz"
-  sha1 "cc0f0dc55db3c4ca7f2f34564402f712807f1342"
-  revision 1
+  url "http://ftp.gnome.org/pub/GNOME/sources/adwaita-icon-theme/3.14/adwaita-icon-theme-3.14.1.tar.xz"
+  sha1 "e1d603d9cc4e4b7f83f749ba20934832d4321dd2"
 
   bottle do
     cellar :any
@@ -18,12 +15,21 @@ class GnomeIconTheme < Formula
   depends_on "gtk+3" => :build # for gtk3-update-icon-cache
   depends_on "icon-naming-utils" => :build
   depends_on "intltool" => :build
+  depends_on "librsvg"
 
   def install
     system "./configure", "--disable-dependency-tracking",
                           "--prefix=#{prefix}",
-                          "--enable-icon-mapping",
                           "GTK_UPDATE_ICON_CACHE=#{Formula["gtk+3"].opt_bin}/gtk3-update-icon-cache"
     system "make", "install"
   end
+
+  test do
+    # This checks that a -symbolic png file generated from svg exists
+    # and that a file created late in the install process exists.
+    # Someone who understands GTK+3 could probably write better tests that
+    # check if GTK+3 can find the icons.
+    assert (share/"icons/Adwaita/96x96/status/weather-storm-symbolic.symbolic.png").exist?
+    assert (share/"icons/Adwaita/index.theme").exist?
+  end
 end