services support

CONTRIBUTING.md

@@ -91,6 +91,7 @@ Additional fields you might need for special use-cases:
 | `qlplugin`         | relative path to a QuickLook plugin that should be linked into the `~/Library/QuickLook` folder on installation
 | `font`             | relative path to a font that should be linked into the `~/Library/Fonts` folder on installation
 | `widget`           | relative path to a widget that should be linked into the `~/Library/Widgets` folder on installation
+| `service`          | relative path to a service that should be linked into the `~/Library/Services` 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.
 | `caveats`          | a Ruby block providing the user with Cask-specific information at install time
 | `after_install`    | a Ruby block containing postflight install operations

Casks/calc-service.rb

@@ -0,0 +1,7 @@
+class CalcService < Cask
+  url 'https://s3.amazonaws.com/DTWebsiteSupport/download/freeware/calcservice/3.4/CalcService.zip'
+  homepage 'http://www.devontechnologies.com/products/freeware.html#c1111'
+  version '3.4'
+  sha1 'ce6102a42b01929794e235cb9f42cbcb6c7e9077'
+  service 'CalcService.service'
+end

lib/cask/artifact.rb

@@ -11,6 +11,7 @@ module Cask::Artifact; end
 require 'cask/artifact/prefpane'
 require 'cask/artifact/qlplugin'
 require 'cask/artifact/widget'
+require 'cask/artifact/service'
 
 
 module Cask::Artifact
@@ -28,6 +29,7 @@ def self.artifacts
       Cask::Artifact::Qlplugin,
       Cask::Artifact::Font,
       Cask::Artifact::Widget,
+      Cask::Artifact::Service,
       Cask::Artifact::Block,
     ]
   end

lib/cask/artifact/service.rb

@@ -0,0 +1,41 @@
+class Cask::Artifact::Service < Cask::Artifact::Base
+  def self.me?(cask)
+    cask.artifacts[:service].any?
+  end
+
+  def install
+    @cask.artifacts[:service].each { |service| link(service) }
+  end
+
+  def uninstall
+    @cask.artifacts[:service].each { |service| unlink(service) }
+  end
+
+  def link(service_relative_path)
+    source = @cask.destination_path.join(service_relative_path)
+    target = Cask.servicedir.join(source.basename)
+
+    return unless preflight_checks(source, target)
+    ohai "Linking service #{source.basename} to #{target}"
+    @command.run!('/bin/ln', :args => ['-hfs', source, target])
+  end
+
+  def preflight_checks(source, target)
+    if target.exist? && !target.symlink?
+      ohai "It seems there is already a service at #{target}; not linking."
+      false
+    end
+    unless source.exist?
+      raise "it seems the symlink source is not there: #{source}"
+    end
+    true
+  end
+
+  def unlink(service_relative_path)
+    linked_path = Cask.servicedir.join(Pathname(service_relative_path).basename)
+    if linked_path.exist? && linked_path.symlink?
+      ohai "Removing service link: #{linked_path}"
+      linked_path.delete
+    end
+  end
+end

lib/cask/cli.rb

@@ -77,6 +77,9 @@ def self.parser
       opts.on("--widgetdir=MANDATORY") do |v|
         Cask.widgetdir = Pathname(v).expand_path
       end
+      opts.on("--servicedir=MANDATORY") do |v|
+        Cask.servicedir = Pathname(v).expand_path
+      end
       opts.on("--debug") do |v|
         @debug = true
       end

lib/cask/dsl.rb

@@ -44,6 +44,7 @@ def artifacts
       :font,
       :uninstall,
       :widget,
+      :service,
       :colorpicker,
     ]
 

lib/cask/locations.rb

@@ -64,6 +64,14 @@ def colorpickerdir=(_colorpickerdir)
       @colorpickerdir = _colorpickerdir
     end
 
+    def servicedir
+      @servicedir ||= Pathname.new('~/Library/Services').expand_path
+    end
+
+    def servicedir=(_servicedir)
+      @servicedir = _servicedir
+    end
+
     def default_tap
       @default_tap ||= 'phinze-cask'
     end

test/cask/cli/options_test.rb

@@ -85,6 +85,20 @@
     Cask.widgetdir.must_equal Pathname('/some/path/bar')
   end
 
+  it "supports setting the servicedir" do
+    Cask::CLI.process_options %w{help --servicedir=/some/path/foo}
+
+    Cask.servicedir.must_equal Pathname('/some/path/foo')
+  end
+
+  it "supports setting the servicedir from ENV" do
+    ENV['HOMEBREW_CASK_OPTS'] = "--servicedir=/some/path/bar"
+
+    Cask::CLI.process_options %w{help}
+
+    Cask.servicedir.must_equal Pathname('/some/path/bar')
+  end
+
   it "allows additional options to be passed through" do
     rest = Cask::CLI.process_options %w{edit foo --create --appdir=/some/path/qux}