diff options
Diffstat (limited to 'activesupport/lib/active_support/cache')
3 files changed, 18 insertions, 17 deletions
diff --git a/activesupport/lib/active_support/cache/file_store.rb b/activesupport/lib/active_support/cache/file_store.rb index f7c01948b4..9460532af0 100644 --- a/activesupport/lib/active_support/cache/file_store.rb +++ b/activesupport/lib/active_support/cache/file_store.rb @@ -8,11 +8,13 @@ module ActiveSupport # A cache store implementation which stores everything on the filesystem. # # FileStore implements the Strategy::LocalCache strategy which implements - # an in memory cache inside of a block. + # an in-memory cache inside of a block. class FileStore < Store 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) + EXCLUDED_DIRS = ['.', '..'].freeze def initialize(cache_path, options = nil) super(options) @@ -21,7 +23,7 @@ module ActiveSupport end def clear(options = nil) - root_dirs = Dir.entries(cache_path).reject{|f| f.in?(['.', '..'])} + root_dirs = Dir.entries(cache_path).reject{|f| f.in?(EXCLUDED_DIRS)} FileUtils.rm_r(root_dirs.collect{|f| File.join(cache_path, f)}) end @@ -129,15 +131,13 @@ module ActiveSupport hash, dir_1 = hash.divmod(0x1000) dir_2 = hash.modulo(0x1000) fname_paths = [] - # Make sure file name is < 255 characters so it doesn't exceed file system limits. - if fname.size <= 255 - fname_paths << fname - else - while fname.size <= 255 - fname_path << fname[0, 255] - fname = fname[255, -1] - end - end + + # Make sure file name doesn't exceed file system limits. + begin + fname_paths << fname[0, FILENAME_MAX_SIZE] + fname = fname[FILENAME_MAX_SIZE..-1] + end until fname.blank? + File.join(cache_path, DIR_FORMATTER % dir_1, DIR_FORMATTER % dir_2, *fname_paths) end @@ -150,7 +150,7 @@ module ActiveSupport # Delete empty directories in the cache. def delete_empty_directories(dir) return if dir == cache_path - if Dir.entries(dir).reject{|f| f.in?(['.', '..'])}.empty? + if Dir.entries(dir).reject{|f| f.in?(EXCLUDED_DIRS)}.empty? File.delete(dir) rescue nil delete_empty_directories(File.dirname(dir)) end @@ -162,8 +162,9 @@ module ActiveSupport end def search_dir(dir, &callback) + return if !File.exist?(dir) Dir.foreach(dir) do |d| - next if d == "." || d == ".." + next if d.in?(EXCLUDED_DIRS) name = File.join(dir, d) if File.directory?(name) search_dir(name, &callback) diff --git a/activesupport/lib/active_support/cache/mem_cache_store.rb b/activesupport/lib/active_support/cache/mem_cache_store.rb index e07294178b..530839b24d 100644 --- a/activesupport/lib/active_support/cache/mem_cache_store.rb +++ b/activesupport/lib/active_support/cache/mem_cache_store.rb @@ -11,7 +11,7 @@ require 'active_support/core_ext/string/encoding' module ActiveSupport module Cache # A cache store implementation which stores data in Memcached: - # http://www.danga.com/memcached/ + # http://memcached.org/ # # This is currently the most popular cache store for production websites. # @@ -21,7 +21,7 @@ module ActiveSupport # server goes down, then MemCacheStore will ignore it until it comes back up. # # MemCacheStore implements the Strategy::LocalCache strategy which implements - # an in memory cache inside of a block. + # an in-memory cache inside of a block. class MemCacheStore < Store module Response # :nodoc: STORED = "STORED\r\n" diff --git a/activesupport/lib/active_support/cache/strategy/local_cache.rb b/activesupport/lib/active_support/cache/strategy/local_cache.rb index 0649a058aa..db5f228a70 100644 --- a/activesupport/lib/active_support/cache/strategy/local_cache.rb +++ b/activesupport/lib/active_support/cache/strategy/local_cache.rb @@ -4,9 +4,9 @@ require 'active_support/core_ext/string/inflections' module ActiveSupport module Cache module Strategy - # Caches that implement LocalCache will be backed by an in memory cache for the + # Caches that implement LocalCache will be backed by an in-memory cache for the # duration of a block. Repeated calls to the cache for the same key will hit the - # in memory cache for faster access. + # in-memory cache for faster access. module LocalCache # Simple memory backed cache. This cache is not thread safe and is intended only # for serving as a temporary memory cache for a single thread. |