Add support for screensaver artifact

CONTRIBUTING.md

@@ -97,6 +97,7 @@ Additional fields you might need for special use-cases:
 | `service`          | relative path to a service that should be linked into the `~/Library/Services` folder on installation
 | `binary`           | relative path to a binary that should be linked into the `~/usr/local/bin` folder on installation
 | `input_method`     | relative path to a input method that should be linked into the `~/Library/Input Methods` folder on installation
+| `screensaver`      | relative path to a screensaver that should be linked into the `~/Library/Screen Savers` folder on installation
 | `nested_container` | relative path to an inner container that must be extracted before moving on with the installation; this allows us to support dmg inside tar, zip inside dmg, etc.
 | `depends_on_formula` | a list of Homebrew Formulae upon which this Cask depends
 | `caveats`          | a string or Ruby block providing the user with Cask-specific information at install time (see __Caveats Details__ for more information)

FAQ.md

@@ -17,6 +17,7 @@ Casks currently have five required fields:
  * __qlplugin__: (required for `.qlgenerator`) indicates which file(s) should be linked into the QuickLook folder on installation
  * __font__ : (required for fonts) indicates which file(s) should be linked into the Fonts folder on installation
  * __input_method__: (required for input method) indicates which file(s) should be linked into the Input Methods folder on installation
+ * __screensaver__: (required for `.saver`) indicates which file(s) should be linked into the Screen Saver folder on installation
 
 and six optional fields:
 

USAGE.md

@@ -169,6 +169,9 @@ Default is `~/Library/Fonts`
 Default is `/usr/local/bin`
 * `--input_methoddir=/my/path` changes the path for Input Methods symlinks.
 Default is `~/Library/Input Methods`
+* `--screensaverdir=/my/path` changes the path for Screen Saver symlinks.
+Default is `~/Library/Screen Savers`
+
 
 To make these settings persistent, you might want to add the following line to your `.bash_profile` or `.zshenv`:
 

lib/cask.rb

@@ -54,6 +54,7 @@ class Cask
     end
     appdir.mkpath unless appdir.exist?
     qlplugindir.mkpath unless qlplugindir.exist?
+    screen_saverdir.mkpath unless screen_saverdir.exist?
   end
 
   def self.load(query)

lib/cask/artifact.rb

@@ -17,6 +17,7 @@ require 'cask/artifact/widget'
 require 'cask/artifact/service'
 require 'cask/artifact/caskroom_only'
 require 'cask/artifact/input_method'
+require 'cask/artifact/screensaver'
 
 
 module Cask::Artifact
@@ -39,6 +40,7 @@ module Cask::Artifact
       Cask::Artifact::Block,
       Cask::Artifact::Binary,
       Cask::Artifact::InputMethod,
+      Cask::Artifact::ScreenSaver,
     ]
   end
 

lib/cask/artifact/screensaver.rb

@@ -0,0 +1,3 @@
+class Cask::Artifact::ScreenSaver < Cask::Artifact::Symlinked
+
+end

lib/cask/cli.rb

@@ -108,6 +108,10 @@ class Cask::CLI
       opts.on("--input_methoddir=MANDATORY") do |v|
         Cask.input_methoddir = Pathname(v).expand_path
       end
+      opts.on("--screen_saverdir=MANDATORY") do |v|
+       Cask.screen_saverdir = Pathname(v).expand_path
+      end
+
       opts.on("--no-binaries") do |v|
         Cask.no_binaries = true
       end

lib/cask/dsl.rb

@@ -65,7 +65,8 @@ module Cask::DSL
       :colorpicker,
       :binary,
       :caskroom_only,
-      :input_method
+      :input_method,
+      :screen_saver
     ]
 
     ARTIFACT_TYPES.each do |type|

lib/cask/locations.rb

@@ -88,6 +88,14 @@ module Cask::Locations
       @input_methoddir = _input_methoddir
     end
 
+    def screen_saverdir
+      @screen_saverdir ||= Pathname.new('~/Library/Screen Savers').expand_path
+    end
+
+    def screen_saverdir=(_screen_saverdir)
+      @screen_saverdir = _screen_saverdir
+    end
+
     def default_tap
       @default_tap ||= 'phinze-cask'
     end