diff options
| -rw-r--r-- | activesupport/lib/active_support/cache/file_store.rb | 2 | ||||
| -rw-r--r-- | activesupport/test/caching_test.rb | 10 |
2 files changed, 11 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/cache/file_store.rb b/activesupport/lib/active_support/cache/file_store.rb index b7712a4a15..8e6a3bc5a8 100644 --- a/activesupport/lib/active_support/cache/file_store.rb +++ b/activesupport/lib/active_support/cache/file_store.rb @@ -13,7 +13,7 @@ module ActiveSupport attr_reader :cache_path DIR_FORMATTER = "%03X" - FILENAME_MAX_SIZE = 230 # max filename size on file system is 255, minus room for timestamp and random characters appended by Tempfile (used by atomic write) + FILENAME_MAX_SIZE = 228 # max filename size on file system is 255, minus room for timestamp and random characters appended by Tempfile (used by atomic write) EXCLUDED_DIRS = ['.', '..'].freeze def initialize(cache_path, options = nil) diff --git a/activesupport/test/caching_test.rb b/activesupport/test/caching_test.rb index ba027f1ff0..4371a02934 100644 --- a/activesupport/test/caching_test.rb +++ b/activesupport/test/caching_test.rb @@ -579,6 +579,16 @@ class FileStoreTest < ActiveSupport::TestCase assert_equal "views/index?id=1", @cache_with_pathname.send(:file_path_key, key) end + # Test that generated cache keys are short enough to have Tempfile stuff added to them and + # remain valid + def test_filename_max_size + key = "#{'A' * ActiveSupport::Cache::FileStore::FILENAME_MAX_SIZE}" + path = @cache.send(:key_file_path, key) + Dir::Tmpname.create(path) do |tmpname, n, opts| + assert (File.basename(tmpname+'.lock').length <= 255), "Temp filename too long: #{File.basename(tmpname+'.lock').length}" + end + end + # Because file systems have a maximum filename size, filenames > max size should be split in to directories # If filename is 'AAAAB', where max size is 4, the returned path should be AAAA/B def test_key_transformation_max_filename_size |