get dwarf-fortress runnable: just install and type dwarf-fortress (H…

…omebrew#21288)

Also add casks: sdl-framework 1.2.15, sdl-ttf-framework 2.0.11, to support the main cask

Casks/dwarf-fortress.rb

@@ -2,10 +2,42 @@
   version '0.43.01'
   sha256 '7fe378b7aeee67f10a1f88a2341b8724edbf91795fd928506f01dfb403304d43'
 
-  url "http://www.bay12games.com/dwarves/df_#{version.sub(%r{^0+\.}, '').gsub('.', '_')}_osx.tar.bz2"
+  url "http://www.bay12games.com/dwarves/df_#{version.minor}_#{version.patch}_osx.tar.bz2"
   name 'Dwarf Fortress'
   homepage 'http://www.bay12games.com/dwarves/'
   license :gratis
 
-  suite 'df_osx', target: 'Dwarf Fortress'
+  # shim script (https://github.com/caskroom/homebrew-cask/issues/18809)
+  shimscript = "#{staged_path}/df_wrapper"
+  depends_on cask: 'sdl-framework'
+  depends_on cask: 'sdl-ttf-framework'
+
+  binary shimscript, target: 'dwarf-fortress'
+
+  preflight do
+    File.open(shimscript, 'w') do |f|
+      f.puts '#!/bin/sh'
+      f.puts "cd '#{staged_path}/df_osx' && ./df \"$@\""
+      FileUtils.chmod '+x', f
+    end
+  end
+
+  postflight do
+    Dir.chdir("#{staged_path}/df_osx/libs") do
+      {
+        'SDL'     => 'sdl-framework',
+        'SDL_ttf' => 'sdl-ttf-framework',
+      }.each do |key, value|
+        name = "#{key}.framework"
+        File.rename(name, "#{name}.orig")
+        File.symlink(Hbc.load(value).staged_path.join(name), name)
+      end
+    end
+  end
+
+  uninstall_preflight do
+    system 'cp', '-r', "#{staged_path}/df_osx/data/save", '/tmp/dwarf-fortress-save/'
+  end
+
+  caveats 'During uninstall, your save data will be copied to /tmp/dwarf-fortress-save'
 end

Casks/sdl-framework.rb

@@ -0,0 +1,11 @@
+cask 'sdl-framework' do
+  version '1.2.15'
+  sha256 '49e228446599b1f77af812a6276dd7a3f230f8d7a02d1b7b62bb99a874262834'
+
+  url "https://www.libsdl.org/release/SDL-#{version}.dmg"
+  name 'SDL.framework'
+  homepage 'https://www.libsdl.org'
+  license :gpl
+
+  stage_only true
+end

Casks/sdl-ttf-framework.rb

@@ -0,0 +1,11 @@
+cask 'sdl-ttf-framework' do
+  version '2.0.11'
+  sha256 '8c0c8eab34002dfff6695cec7066bd5e4aa56250b82dd9f5cd272f7e6f530dd4'
+
+  url "https://www.libsdl.org/projects/SDL_ttf/release/SDL_ttf-#{version}.dmg"
+  name 'SDL_ttf.framework'
+  homepage 'https://www.libsdl.org'
+  license :gpl
+
+  stage_only true
+end