diff options
Diffstat (limited to 'activesupport/lib/active_support/evented_file_update_checker.rb')
| -rw-r--r-- | activesupport/lib/active_support/evented_file_update_checker.rb | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/evented_file_update_checker.rb b/activesupport/lib/active_support/evented_file_update_checker.rb index f54f88eb0a..8e0dc71dca 100644 --- a/activesupport/lib/active_support/evented_file_update_checker.rb +++ b/activesupport/lib/active_support/evented_file_update_checker.rb @@ -17,7 +17,7 @@ module ActiveSupport # # Example: # - # checker = EventedFileUpdateChecker.new(["/tmp/foo"], -> { puts "changed" }) + # checker = ActiveSupport::EventedFileUpdateChecker.new(["/tmp/foo"]) { puts "changed" } # checker.updated? # # => false # checker.execute_if_updated @@ -32,6 +32,10 @@ module ActiveSupport # class EventedFileUpdateChecker #:nodoc: all def initialize(files, dirs = {}, &block) + unless block + raise ArgumentError, "A block is required to initialize an EventedFileUpdateChecker" + end + @ph = PathHelper.new @files = files.map { |f| @ph.xpath(f) }.to_set |