Cache (FileStore) clear should keep .gitkeep

2 files changed, 8 insertions, 1 deletions

diff --git a/activesupport/lib/active_support/cache/file_store.rb b/activesupport/lib/active_support/cache/file_store.rb
index 9460532af0..1604cd12af 100644
--- a/activesupport/lib/active_support/cache/file_store.rb
+++ b/activesupport/lib/active_support/cache/file_store.rb
@@ -23,7 +23,7 @@ module ActiveSupport
       end
 
       def clear(options = nil)
-        root_dirs = Dir.entries(cache_path).reject{|f| f.in?(EXCLUDED_DIRS)}
+        root_dirs = Dir.entries(cache_path).reject{|f| f.in?(EXCLUDED_DIRS + [".gitkeep"])}
         FileUtils.rm_r(root_dirs.collect{|f| File.join(cache_path, f)})
       end
 
diff --git a/activesupport/test/caching_test.rb b/activesupport/test/caching_test.rb
index 3454c378d3..030e31d158 100644
--- a/activesupport/test/caching_test.rb
+++ b/activesupport/test/caching_test.rb
@@ -572,6 +572,13 @@ class FileStoreTest < ActiveSupport::TestCase
   include CacheDeleteMatchedBehavior
   include CacheIncrementDecrementBehavior
 
+  def test_clear
+    filepath = File.join(cache_dir, ".gitkeep")
+    FileUtils.touch(filepath)
+    @cache.clear
+    assert File.exist?(filepath)
+  end
+
   def test_key_transformation
     key = @cache.send(:key_file_path, "views/index?id=1")
     assert_equal "views/index?id=1", @cache.send(:file_path_key, key)