replace File.exists? with File.exist?

File.exists? has been deprecated since Ruby 1.9.2

features/step_definitions/attachment_steps.rb

@@ -35,7 +35,7 @@ end
 
 Then /^the attachment "([^"]*)" should exist$/ do |filename|
   in_current_dir do
-    File.exists?(attachment_path(filename)).should be
+    File.exist?(attachment_path(filename)).should be
   end
 end
 

features/step_definitions/rails_steps.rb

@@ -197,7 +197,7 @@ Given /^I am using Rails newer than ([\d\.]+)$/ do |version|
 end
 
 def transform_file(filename)
-  if File.exists?(filename)
+  if File.exist?(filename)
     content = File.read(filename)
     File.open(filename, "w") do |f|
       content = yield(content)

lib/paperclip/content_type_detector.rb

@@ -40,7 +40,7 @@ module Paperclip
     private
 
     def empty_file?
-      File.exists?(@filename) && File.size(@filename) == 0
+      File.exist?(@filename) && File.size(@filename) == 0
     end
 
     alias :empty? :empty_file?

lib/paperclip/storage/filesystem.rb

@@ -69,7 +69,7 @@ module Paperclip
             while(true)
               path = File.dirname(path)
               FileUtils.rmdir(path)
-              break if File.exists?(path) # Ruby 1.9.2 does not raise if the removal failed.
+              break if File.exist?(path) # Ruby 1.9.2 does not raise if the removal failed.
             end
           rescue Errno::EEXIST, Errno::ENOTEMPTY, Errno::ENOENT, Errno::EINVAL, Errno::ENOTDIR, Errno::EACCES
             # Stop trying to remove parent directories

spec/paperclip/integration_spec.rb

@@ -81,7 +81,7 @@ describe 'Paperclip' do
   context "Attachment" do
     before do
       @thumb_path = "tmp/public/system/dummies/avatars/000/000/001/thumb/5k.png"
-      File.delete(@thumb_path) if File.exists?(@thumb_path)
+      File.delete(@thumb_path) if File.exist?(@thumb_path)
       rebuild_model styles: { thumb: "50x50#" }
       @dummy = Dummy.new
       @file = File.new(fixture_file("5k.png"), 'rb')
@@ -109,8 +109,8 @@ describe 'Paperclip' do
     before do
       @thumb_small_path = "tmp/public/system/dummies/avatars/000/000/001/thumb_small/5k.png"
       @thumb_large_path = "tmp/public/system/dummies/avatars/000/000/001/thumb_large/5k.png"
-      File.delete(@thumb_small_path) if File.exists?(@thumb_small_path)
-      File.delete(@thumb_large_path) if File.exists?(@thumb_large_path)
+      File.delete(@thumb_small_path) if File.exist?(@thumb_small_path)
+      File.delete(@thumb_large_path) if File.exist?(@thumb_large_path)
       rebuild_model styles: { thumb_small: "50x50#", thumb_large: "60x60#" }
       @dummy = Dummy.new
       @file = File.new(fixture_file("5k.png"), 'rb')

spec/paperclip/storage/filesystem_spec.rb

@@ -38,7 +38,7 @@ describe Paperclip::Storage::Filesystem do
       it "is removed after after_flush_writes" do
         paths = @dummy.avatar.queued_for_write.values.map(&:path)
         @dummy.save
-        assert paths.none?{ |path| File.exists?(path) },
+        assert paths.none?{ |path| File.exist?(path) },
           "Expect all the files to be deleted."
       end
 

spec/paperclip/storage/fog_spec.rb

@@ -167,7 +167,7 @@ describe Paperclip::Storage::Fog do
       it "is removed after after_flush_writes" do
         paths = @dummy.avatar.queued_for_write.values.map(&:path)
         @dummy.save
-        assert paths.none?{ |path| File.exists?(path) },
+        assert paths.none?{ |path| File.exist?(path) },
           "Expect all the files to be deleted."
       end
 

spec/paperclip/storage/s3_spec.rb

@@ -691,7 +691,7 @@ describe Paperclip::Storage::S3 do
         @dummy.avatar.stubs(:s3_object).returns(stub(write: true))
         paths = @dummy.avatar.queued_for_write.values.map(&:path)
         @dummy.save
-        assert paths.none?{ |path| File.exists?(path) },
+        assert paths.none?{ |path| File.exist?(path) },
           "Expect all the files to be deleted."
       end
 

spec/paperclip/tempfile_factory_spec.rb

@@ -24,6 +24,6 @@ describe Paperclip::TempfileFactory do
 
   it 'is able to take nothing as a parameter and not error' do
    file = subject.generate
-   assert File.exists?(file.path)
+   assert File.exist?(file.path)
   end
 end

spec/support/matchers/exist.rb

 RSpec::Matchers.define :exist do |expected|
   match do |actual|
-    File.exists?(actual)
+    File.exist?(actual)
   end
 end