diff --git a/README.md b/README.md
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+Rake Tasks
+==========
+
+A collection of rake tasks for use with [Trema][trema] and Trema apps.
+
+[trema]: https://github.com/trema/trema_ruby
diff --git a/cucumber.rake b/cucumber.rake
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+begin
+  require 'cucumber/rake/task'
+  Cucumber::Rake::Task.new
+rescue LoadError
+  task :cucumber do
+    $stderr.puts 'Cucumber is disabled'
+  end
+end
diff --git a/flog.rake b/flog.rake
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+begin
+  require 'flog'
+
+  desc 'Analyze for code complexity'
+  task :flog do
+    flog = Flog.new(continue: true)
+    flog.flog(*FileList['*.rb'])
+    threshold = 0
+
+    bad_methods = flog.totals.select do |name, score|
+      !(/##{flog.no_method}$/ =~ name) && score > threshold
+    end
+    bad_methods.sort { |a, b| a[1] <=> b[1] }.reverse.each do |name, score|
+      printf "%8.1f: %s\n", score, name
+    end
+    unless bad_methods.empty?
+      $stderr.puts "#{bad_methods.size} methods "\
+                   "have a complexity > #{threshold}"
+    end
+  end
+rescue LoadError
+  task :flog do
+    $stderr.puts 'Flog is disabled'
+  end
+end
diff --git a/reek.rake b/reek.rake
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+++ b/reek.rake
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+begin
+  require 'reek/rake/task'
+  Reek::Rake::Task.new do |t|
+    t.fail_on_error = false
+    t.verbose = false
+  end
+rescue LoadError
+  task :reek do
+    $stderr.puts 'Reek is disabled'
+  end
+end
diff --git a/rspec.rake b/rspec.rake
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+++ b/rspec.rake
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+require 'rspec/core/rake_task'
+
+RSpec::Core::RakeTask.new
diff --git a/rubocop.rake b/rubocop.rake
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+++ b/rubocop.rake
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+begin
+  require 'rubocop/rake_task'
+  RuboCop::RakeTask.new
+rescue LoadError
+  task :rubocop do
+    $stderr.puts 'RuboCop is disabled'
+  end
+end
diff --git a/yard.rake b/yard.rake
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+++ b/yard.rake
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+begin
+  require 'yard'
+  YARD::Rake::YardocTask.new do |t|
+    t.files = ['lib/**/*.rb']
+    t.options = ['--no-private']
+    t.options << '--debug' << '--verbose' if verbose == true
+  end
+rescue LoadError
+  task :yard do
+    $stderr.puts 'YARD is disabled'
+  end
+end