add tasks and mspec definitions to run cext specs on the CI

build.xml

@@ -1097,6 +1097,7 @@
   <target name="spec:ci_all" depends="install-gems"><rake task="spec:ci_all"/></target>
   <target name="spec:ci_latest" depends="install-gems"><rake task="spec:ci_latest"/></target>
   <target name="spec:ci_latest_19" depends="install-gems"><rake task="spec:ci_latest_19"/></target>
+  <target name="spec:ci_cext" depends="install-gems"><rake task="spec:ci_cext"/></target>
 
   <!-- Old compatibility targets which call to newer Rake-based ones -->
   <target name="spec" depends="spec:ci_18"/>
@@ -1110,6 +1111,7 @@
   <!-- latest, unstable specs -->
   <target name="spec-latest-all" depends="spec:ci_all"/>
   <target name="spec-latest" depends="spec:ci_latest"/>
+  <target name="spec-cext" depends="spec:ci_cext"/>
 
   <target name="update-excludes">
     <java classname="org.jruby.Main" fork="true" maxmemory="${jruby.launch.memory}" failonerror="false" dir="${spec.dir}">

default.build.properties

@@ -8,6 +8,7 @@ dest.lib.dir=${lib.dir}
 spec.dir=${base.dir}/spec
 ruby18.mspec.file=${spec.dir}/jruby.1.8.mspec
 ruby19.mspec.file=${spec.dir}/jruby.1.9.mspec
+cext.mspec.file=${spec.dir}/jruby.cext.mspec
 rubyspec.git.repo=git://github.com/rubyspec/rubyspec.git
 rubyspec.dir=${spec.dir}/ruby
 rubyspec.tar.file=${build.dir}/rubyspec.tgz

rakelib/spec.rake

@@ -53,6 +53,12 @@ namespace :spec do
   desc "Run rubyspecs expected to pass (against latest rubyspec version)"
   task :ci_latest_19 => ['spec:fast_forward_to_rubyspec_head', 'spec:tagged_19']
 
+  desc "Run optional C API rubyspecs"
+  task :ci_cext => ['spec:fast_forward_to_rubyspec_head'] do
+    mspec :spec_config => CEXT_MSPEC_FILE
+    fail "One or more Ruby spec runs have failed" if spec_run_error
+  end
+
   # Note: For this point below it is your reponsibility to make sure specs
   # are checked out.
 

spec/jruby.cext.mspec

@@ -0,0 +1,34 @@
+# Default RubySpec/CI settings for JRuby.
+
+# detect windows platform:
+require 'rbconfig'
+require 'java'
+require 'jruby/util'
+
+IKVM = java.lang.System.get_property('java.vm.name') =~ /IKVM\.NET/
+WINDOWS = Config::CONFIG['host_os'] =~ /mswin/
+
+SPEC_DIR = File.join(File.dirname(__FILE__), 'ruby') unless defined?(SPEC_DIR)
+TAGS_DIR = File.join(File.dirname(__FILE__), 'tags') unless defined?(TAGS_DIR)
+
+class MSpecScript
+  # An ordered list of the directories containing specs to run
+  # as the CI process.
+  set :ci_files, [
+    SPEC_DIR + '/optional/capi',
+  ]
+
+  # The default implementation to run the specs.
+  set :target, File.dirname(__FILE__) + '/../bin/' + Config::CONFIG['ruby_install_name'] + Config::CONFIG['EXEEXT']
+
+  set :backtrace_filter, /mspec\//
+
+  # Disable features (not currently supported)
+  MSpec.disable_feature :continuation
+  MSpec.disable_feature :fork
+
+  # Enable features
+  MSpec.enable_feature :readline
+  # These are encoding-aware methods backported to 1.8.7+ (eg String#bytes)
+  MSpec.enable_feature :encoding_transition
+end