Omit directories from gemspec.files for RubyGems 2 compat.

RG2 packager expects each spec.files path to be a file and bombs when it tries to tarball a dir.

May revert if rubygems/rubygems#413 is accepted.

actionmailer/actionmailer.gemspec

@@ -15,7 +15,7 @@
   s.email    = 'david@loudthinking.com'
   s.homepage = 'http://www.rubyonrails.org'
 
-  s.files        = Dir['CHANGELOG.md', 'README.rdoc', 'MIT-LICENSE', 'lib/**/*']
+  s.files        = Dir['CHANGELOG.md', 'README.rdoc', 'MIT-LICENSE', 'lib/**/*'].select { |path| File.file? path }
   s.require_path = 'lib'
   s.requirements << 'none'
 

actionpack/actionpack.gemspec

@@ -15,7 +15,7 @@
   s.email    = 'david@loudthinking.com'
   s.homepage = 'http://www.rubyonrails.org'
 
-  s.files        = Dir['CHANGELOG.md', 'README.rdoc', 'MIT-LICENSE', 'lib/**/*']
+  s.files        = Dir['CHANGELOG.md', 'README.rdoc', 'MIT-LICENSE', 'lib/**/*'].select { |path| File.file? path }
   s.require_path = 'lib'
   s.requirements << 'none'
 

activemodel/activemodel.gemspec

@@ -15,7 +15,7 @@
   s.email    = 'david@loudthinking.com'
   s.homepage = 'http://www.rubyonrails.org'
 
-  s.files        = Dir['CHANGELOG.md', 'MIT-LICENSE', 'README.rdoc', 'lib/**/*']
+  s.files        = Dir['CHANGELOG.md', 'MIT-LICENSE', 'README.rdoc', 'lib/**/*'].select { |path| File.file? path }
   s.require_path = 'lib'
 
   s.add_dependency 'activesupport', version

activerecord/activerecord.gemspec

@@ -15,7 +15,7 @@
   s.email    = 'david@loudthinking.com'
   s.homepage = 'http://www.rubyonrails.org'
 
-  s.files        = Dir['CHANGELOG.md', 'MIT-LICENSE', 'README.rdoc', 'examples/**/*', 'lib/**/*']
+  s.files        = Dir['CHANGELOG.md', 'MIT-LICENSE', 'README.rdoc', 'examples/**/*', 'lib/**/*'].select { |path| File.file? path }
   s.require_path = 'lib'
 
   s.extra_rdoc_files = %w(README.rdoc)

activesupport/activesupport.gemspec

@@ -15,7 +15,7 @@
   s.email    = 'david@loudthinking.com'
   s.homepage = 'http://www.rubyonrails.org'
 
-  s.files        = Dir['CHANGELOG.md', 'MIT-LICENSE', 'README.rdoc', 'lib/**/*']
+  s.files        = Dir['CHANGELOG.md', 'MIT-LICENSE', 'README.rdoc', 'lib/**/*'].select { |path| File.file? path }
   s.require_path = 'lib'
 
   s.rdoc_options.concat ['--encoding',  'UTF-8']

rails.gemspec

@@ -18,7 +18,7 @@
 
   s.bindir      = 'bin'
   s.executables = []
-  s.files       = Dir['guides/**/*']
+  s.files       = Dir['guides/**/*'].select { |path| File.file? path }
 
   s.add_dependency 'activesupport', version
   s.add_dependency 'actionpack',    version

railties/railties.gemspec

@@ -15,7 +15,7 @@
   s.email    = 'david@loudthinking.com'
   s.homepage = 'http://www.rubyonrails.org'
 
-  s.files        = Dir['CHANGELOG.md', 'README.rdoc', 'bin/**/*', 'lib/**/{*,.[a-z]*}']
+  s.files        = Dir['CHANGELOG.md', 'README.rdoc', 'bin/**/*', 'lib/**/{*,.[a-z]*}'].select { |path| File.file? path }
   s.require_path = 'lib'
 
   s.bindir      = 'bin'