Add support for Bower

docs/bower.md

@@ -0,0 +1,13 @@
+# [Bower](http://bower.io/)
+
+Compatible with probably any type of linux guest distro, will cache guests'
+`$HOME/.cache/bower` if bower is detected.
+
+To manually enable it:
+
+```ruby
+Vagrant.configure("2") do |config|
+  config.vm.box = 'some-box-with-bower-installed'
+  config.cache.enable :bower
+end
+```

docs/template.html

@@ -88,6 +88,7 @@
                   <li><a tabindex="-1" href="buckets/apt-cacher">apt-cacher</a></li>
                   <li><a tabindex="-1" href="buckets/chef">Chef</a></li>
                   <li><a tabindex="-1" href="buckets/composer">Composer</a></li>
+                  <li><a tabindex="-1" href="buckets/composer">Bower</a></li>
                   <li><a tabindex="-1" href="buckets/pacman">Pacman</a></li>
                   <li><a tabindex="-1" href="buckets/npm">npm</a></li>
                   <li><a tabindex="-1" href="buckets/rubygems">RubyGems</a></li>

lib/vagrant-cachier/bucket.rb

@@ -96,6 +96,7 @@ require_relative "bucket/rvm"
 require_relative "bucket/apt_cacher"
 require_relative "bucket/apt_lists"
 require_relative "bucket/composer"
+require_relative "bucket/bower"
 require_relative "bucket/npm"
 require_relative "bucket/zypper"
 require_relative "bucket/generic"

lib/vagrant-cachier/bucket/bower.rb

@@ -0,0 +1,21 @@
+module VagrantPlugins
+  module Cachier
+    class Bucket
+      class Bower < Bucket
+        def self.capability
+          :bower_path
+        end
+
+        def install
+          if guest.capability?(:bower_path)
+            if bower_path = guest.capability(:bower_path)
+              user_symlink(bower_path)
+            end
+          else
+            @env[:ui].info I18n.t('vagrant_cachier.skipping_bucket', bucket: 'Bower')
+          end
+        end
+      end
+    end
+  end
+end

lib/vagrant-cachier/cap/linux/bower_path.rb

@@ -0,0 +1,20 @@
+module VagrantPlugins
+  module Cachier
+    module Cap
+      module Linux
+        module BowerPath
+          def self.bower_path(machine)
+            bower_path = nil
+            machine.communicate.tap do |comm|
+              return unless comm.test('which bower')
+              comm.execute 'echo $HOME' do |buffer, output|
+                bower_path = output.chomp if buffer == :stdout
+              end
+            end
+            return "#{bower_path}/.cache/bower"
+          end
+        end
+      end
+    end
+  end
+end

lib/vagrant-cachier/capabilities.rb

@@ -16,6 +16,11 @@ module VagrantPlugins
         Cap::Linux::ComposerPath
       end
 
+      guest_capability 'linux', 'bower_path' do
+        require_relative 'cap/linux/bower_path'
+        Cap::Linux::BowerPath
+      end
+
       guest_capability 'linux', 'chef_file_cache_path' do
         require_relative 'cap/linux/chef_file_cache_path'
         Cap::Linux::ChefFileCachePath