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.
# File lib/active_support/cache/file_store.rb, line 19 def initialize(cache_path, options = nil) super(options) @cache_path = cache_path.to_s extend Strategy::LocalCache end
# File lib/active_support/cache/file_store.rb, line 30 def cleanup(options = nil) options = merged_options(options) search_dir(cache_path) do |fname| key = file_path_key(fname) entry = read_entry(key, options) delete_entry(key, options) if entry && entry.expired? end end
# File lib/active_support/cache/file_store.rb, line 25 def clear(options = nil) 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
# File lib/active_support/cache/file_store.rb, line 53 def decrement(name, amount = 1, options = nil) file_name = key_file_path(namespaced_key(name, options)) lock_file(file_name) do options = merged_options(options) if num = read(name, options) num = num.to_i - amount write(name, num, options) num else nil end end end
# File lib/active_support/cache/file_store.rb, line 67 def delete_matched(matcher, options = nil) options = merged_options(options) instrument(:delete_matched, matcher.inspect) do matcher = key_matcher(matcher, options) search_dir(cache_path) do |path| key = file_path_key(path) delete_entry(key, options) if key.match(matcher) end end end
# File lib/active_support/cache/file_store.rb, line 39 def increment(name, amount = 1, options = nil) file_name = key_file_path(namespaced_key(name, options)) lock_file(file_name) do options = merged_options(options) if num = read(name, options) num = num.to_i + amount write(name, num, options) num else nil end end end
# File lib/active_support/cache/file_store.rb, line 96 def delete_entry(key, options) file_name = key_file_path(key) if File.exist?(file_name) begin File.delete(file_name) delete_empty_directories(File.dirname(file_name)) true rescue => e # Just in case the error was caused by another process deleting the file first. raise e if File.exist?(file_name) false end end end
# File lib/active_support/cache/file_store.rb, line 80 def read_entry(key, options) file_name = key_file_path(key) if File.exist?(file_name) File.open(file_name) { |f| Marshal.load(f) } end rescue nil end
# File lib/active_support/cache/file_store.rb, line 89 def write_entry(key, entry, options) file_name = key_file_path(key) ensure_cache_path(File.dirname(file_name)) File.atomic_write(file_name, cache_path) {|f| Marshal.dump(entry, f)} true end