Updated exclusion list for CI specs.

Updated rake spec:ci task.
Changed ci spec run action to execute all specs in one process.
Added guard on file specs to prevent compilation exception.

Rakefile

@@ -89,7 +89,7 @@ namespace :spec do
   task :ci do
     target = ENV['SPEC_TARGET'] || 'rbx'
     system %(shotgun/rubinius -e 'puts "rbx build: \#{Rubinius::BUILDREV}"') if target == 'rbx'
-    sh "bin/mspec -t #{target} -f ci -x spec/reports/ci-excludes.txt spec"
+    sh "bin/ci -t #{target}"
   end
 
   spec_targets = %w(compiler core language library parser rubinius)

bin/ci

@@ -72,8 +72,8 @@ end
 case action
 when :create
   cmd = <<-EOC
-bin/mspec -t #{target} -x spec/reports/critical-excludes.txt -f ci %s 
-> spec/reports/ci-excludes.txt 
+bin/mspec -t #{target} -x spec/reports/critical-excludes.txt -f ci %s \
+>> spec/reports/ci-excludes.txt \
 2> /dev/null
 EOC
   system("rm -f spec/reports/ci-excludes.txt")
@@ -82,9 +82,7 @@ EOC
   end
   system("cat spec/reports/critical-excludes.txt >> spec/reports/ci-excludes.txt")
 when :run
-  files.each do |file|
-    system("bin/mspec -t #{target} -x spec/reports/ci-excludes.txt -f #{format} #{file} 2> /dev/null")
-  end
+  system("bin/mspec -t #{target} -x spec/reports/ci-excludes.txt -f #{format} #{files.join(' ')} 2> /dev/null")
 when :invert
   files.each do |file|
     system("bin/mspec -t #{target} -e spec/reports/ci-excludes.txt -f #{format} #{file}")

spec/core/file_spec.rb

@@ -1,5 +1,7 @@
 require File.dirname(__FILE__) + '/../spec_helper' 
-require 'pathname'
+failure :rbx do
+  require 'pathname'
+end
 
 # class methods
 # atime, basename, blockdev?, chardev?, chmod, chown, ctime, delete,