Better rake tasks for AppVeyor.

Author: jdantonio

Rakefile

@@ -42,8 +42,7 @@ Dir.glob('tasks/**/*.rake').each do |rakefile|
 end
 
 def has_docker?
-  system("docker version > /dev/null 2>&1")
-  0 == $?.exitstatus
+  system("docker version > /dev/null 2>&1 || boot2docker version > /dev/null 2>&1")
 end
 
 if Concurrent.on_jruby?
@@ -181,7 +180,20 @@ begin
                    '--tag ~notravis'
   end
 
-  task :ci => [:clean, :compile, :travis]
+  RSpec::Core::RakeTask.new(:appveyor) do |t|
+    t.rspec_opts = '--backtrace ' \
+                   '--tag ~unfinished ' \
+                   '--seed 1 ' \
+                   '--format documentation ' \
+                   '--tag ~notravis'
+  end
+
+  if Concurrent.on_windows?
+    task :ci => [:clean, :compile, :appveyor]
+  else
+    task :ci => [:clean, :compile, :travis]
+  end
+
   task :default => [:clean, :compile, :spec]
 rescue LoadError
   puts 'Error loading Rspec rake tasks, probably building the gem...'

lib/concurrent/utility/engine.rb

@@ -19,6 +19,10 @@ def on_rbx?
         ruby_engine == 'rbx'
       end
 
+      def on_windows?
+        !(RbConfig::CONFIG['host_os'] =~ /mswin|mingw|cygwin/).nil?
+      end
+
       def ruby_engine
         defined?(RUBY_ENGINE) ? RUBY_ENGINE : 'ruby'
       end

spec/spec_helper.rb

@@ -8,10 +8,14 @@
   require 'simplecov'
   require 'coveralls'
 
-  SimpleCov.formatter = SimpleCov::Formatter::MultiFormatter[
+  if ENV['TRAVIS']
+    SimpleCov.formatter = SimpleCov::Formatter::MultiFormatter[
       SimpleCov::Formatter::HTMLFormatter,
       Coveralls::SimpleCov::Formatter
-  ]
+    ]
+  else
+    SimpleCov.formatter = SimpleCov::Formatter::HTMLFormatter
+  end
 
   SimpleCov.start do
     project_name 'concurrent-ruby'