Rakefile in right_support-2.8.32 vs Rakefile in right_support-2.8.33

@@ -1,17 +1,25 @@
 # -*-ruby-*-
 require 'rubygems'
 require 'bundler/setup'
 
 require 'rake'
-require 'rdoc/task'
 require 'rubygems/package_task'
 
 require 'rake/clean'
 require 'rspec/core/rake_task'
 require 'cucumber/rake/task'
 
+# These dependencies can be omitted using "bundle install --without"; tolerate their absence.
+['rdoc/task', 'jeweler', 'coveralls/rake/task'].each do |optional|
+  begin
+    require optional
+  rescue LoadError
+    # ignore
+  end
+end
+
 # But, we have a very special need, because OUR Cucumbers need to run with a pristine
 # environment that isn't polluted by RVM or RubyGems or anyone else, in order to validate
 # that RightSupport's CI harness doesn't break your app if those gems are unavailable.
 # Thus when our own Rake task runs spec or cucumber as a subprocess, we need to give it
 # a pristine non-bundled environment, so it can use Bundler.with_clean_env to launch
@@ -29,37 +37,44 @@
 desc "Run functional tests"
 Cucumber::Rake::Task.new do |t|
   t.cucumber_opts = %w{--color --format pretty}
 end
 
-desc 'Generate documentation for the right_support gem.'
-Rake::RDocTask.new(:rdoc) do |rdoc|
-  rdoc.rdoc_dir = 'doc'
-  rdoc.title    = 'RightSupport'
-  rdoc.options << '--line-numbers' << '--inline-source'
-  rdoc.rdoc_files.include('README.rdoc')
-  rdoc.rdoc_files.include('lib/**/*.rb')
-  rdoc.rdoc_files.exclude('features/**/*')
-  rdoc.rdoc_files.exclude('spec/**/*')
+if defined?(Rake::RDocTask)
+  desc 'Generate documentation for the right_support gem.'
+  Rake::RDocTask.new(:rdoc) do |rdoc|
+    rdoc.rdoc_dir = 'doc'
+    rdoc.title    = 'RightSupport'
+    rdoc.options << '--line-numbers' << '--inline-source'
+    rdoc.rdoc_files.include('README.rdoc')
+    rdoc.rdoc_files.include('lib/**/*.rb')
+    rdoc.rdoc_files.exclude('features/**/*')
+    rdoc.rdoc_files.exclude('spec/**/*')
+  end
 end
 
-require 'jeweler'
-tasks = Jeweler::Tasks.new do |gem|
-  # gem is a Gem::Specification; see http://docs.rubygems.org/read/chapter/20 for more options
-  gem.name = "right_support"
-  gem.homepage = "https://github.com/rightscale/right_support"
-  gem.license = "MIT"
-  gem.summary = %Q{Reusable foundation code.}
-  gem.description = %Q{A toolkit of useful, reusable foundation code created by RightScale.}
-  gem.email = "[e-mail]"
-  gem.authors = ['Tony Spataro', 'Sergey Sergyenko', 'Ryan Williamson', 'Lee Kirchhoff', 'Alexey Karpik', 'Scott Messier']
-end
+if defined?(Jeweler)
+  tasks = Jeweler::Tasks.new do |gem|
+    # gem is a Gem::Specification; see http://docs.rubygems.org/read/chapter/20 for more options
+    gem.name = "right_support"
+    gem.homepage = "https://github.com/rightscale/right_support"
+    gem.license = "MIT"
+    gem.summary = %Q{Reusable foundation code.}
+    gem.description = %Q{A toolkit of useful, reusable foundation code created by RightScale.}
+    gem.email = "[e-mail]"
+    gem.authors = ['Tony Spataro', 'Sergey Sergyenko', 'Ryan Williamson', 'Lee Kirchhoff', 'Alexey Karpik', 'Scott Messier']
+  end
 
-# Never auto-commit during operations that change the repository. Allows developers to decide on their own commit comment
-# and/or aggregate version bumps into other fixes.
-tasks.jeweler.commit = false
+  # Never auto-commit during operations that change the repository. Allows developers to decide on their own commit comment
+  # and/or aggregate version bumps into other fixes.
+  tasks.jeweler.commit = false
 
-Jeweler::RubygemsDotOrgTasks.new
+  Jeweler::RubygemsDotOrgTasks.new
+end
+
+if defined?(Coveralls)
+  Coveralls::RakeTask.new
+end
 
 CLEAN.include('pkg')
 
 require 'right_develop'
 RightDevelop::CI::RakeTask.new