Merge pull request #2 from y-takahashi/feature_recursive_mkdir

Add recursive mkdir to create_logfile.

lib/chrono_logger.rb

@@ -1,5 +1,6 @@
 require "chrono_logger/version"
 require 'logger'
+require 'pathname'
 
 # A lock-free logger with timebased file rotation.
 class ChronoLogger < Logger
@@ -91,6 +92,7 @@ def open_logfile(filename)
 
     def create_logfile(filename)
       begin
+        Pathname(filename).dirname.mkpath
         logdev = open(filename, (File::WRONLY | File::APPEND | File::CREAT | File::EXCL))
         logdev.sync = true
       rescue Errno::EEXIST

test/test_chrono_logger.rb

@@ -46,6 +46,23 @@ def test_rotation_per_second
     end
   end
 
+  def test_rotation_per_day_and_create_dir
+    Dir.mktmpdir do |tmpdir|
+      begin
+        Delorean.time_travel_to '2015-08-01 23:59:50'
+        logger = ChronoLogger.new([tmpdir, '/%Y/%m/%d/test.log'].join)
+        logger.debug 'rotation'
+        Delorean.time_travel_to '2015-08-02 00:00:01'
+        logger.debug 'new dir'
+
+        assert { File.exist?([tmpdir, '/2015/08/01/test.log'].join) }
+        assert { File.exist?([tmpdir, '/2015/08/02/test.log'].join) }
+      ensure
+        Delorean.back_to_the_present
+      end
+    end
+  end
+
   class PeriodTest
     include ChronoLogger::Period
   end