Added prettier statistics printing, stats averaging

git-svn-id: http://svn.savannah.nongnu.org/svn/rdiff-backup@106 2b77aa54-bcbc-44c9-a7ec-4f6cf2b41109

trunk/rdiff-backup/rdiff_backup/statistics.py

@@ -17,7 +17,7 @@ class StatsObj:
 					   'ChangedFiles',
 					   'ChangedSourceSize', 'ChangedMirrorSize',
 					   'IncrementFileSize')
-	stat_time_attrs = ('StartTime', 'EndTime')
+	stat_time_attrs = ('StartTime', 'EndTime', 'ElapsedTime')
 	stat_attrs = stat_time_attrs + stat_file_attrs
 
 	# Set all stats to None, indicating info not available
@@ -36,10 +36,23 @@ class StatsObj:
 
 	def get_stats_string(self):
 		"""Return string printing out statistics"""
-		slist = ["%s %s" % (attr, self.get_stat(attr))
-				 for attr in self.stat_attrs
+		timelist = []
+		if self.StartTime is not None:
+			timelist.append("StartTime %s (%s)" %
+						(self.StartTime, Time.timetopretty(self.StartTime)))
+		if self.EndTime is not None:
+			timelist.append("EndTime %s (%s)" %
+							(self.EndTime, Time.timetopretty(self.EndTime)))
+		if self.StartTime is not None and self.EndTime is not None:
+			if self.ElapsedTime is None:
+				self.ElapsedTime = self.EndTime - self.StartTime
+			timelist.append("ElapsedTime %s (%s)" %
+				   (self.ElapsedTime, Time.inttopretty(self.ElapsedTime)))
+
+		filelist = ["%s %s" % (attr, self.get_stat(attr))
+					for attr in self.stat_file_attrs
 					if self.get_stat(attr) is not None]
-		return "\n".join(slist)
+		return "\n".join(timelist + filelist)
 
 	def init_stats_from_string(self, s):
 		"""Initialize attributes from string, return self for convenience"""
@@ -78,6 +91,26 @@ class StatsObj:
 			if self.get_stat(attr) != s.get_stat(attr): return None
 		return 1
 
+	def set_to_average(self, statobj_list):
+		"""Set self's attributes to average of those in statobj_list"""
+		for attr in self.stat_attrs: self.set_stat(attr, 0)
+		for statobj in statobj_list:
+			for attr in self.stat_attrs:
+				if statobj.get_stat(attr) is None: self.set_stat(attr, None)
+				elif self.get_stat(attr) is not None:
+					self.set_stat(attr, statobj.get_stat(attr) +
+								  self.get_stat(attr))
+
+		# Don't compute average starting/stopping time		
+		self.StartTime = None
+		self.EndTime = None
+
+		for attr in self.stat_attrs:
+			if self.get_stat(attr) is not None:
+				self.set_stat(attr,
+							  self.get_stat(attr)/float(len(statobj_list)))
+		return self
+
 
 class StatsITR(IterTreeReducer, StatsObj):
 	"""Keep track of per directory statistics

trunk/rdiff-backup/src/statistics.py

@@ -17,7 +17,7 @@ class StatsObj:
 					   'ChangedFiles',
 					   'ChangedSourceSize', 'ChangedMirrorSize',
 					   'IncrementFileSize')
-	stat_time_attrs = ('StartTime', 'EndTime')
+	stat_time_attrs = ('StartTime', 'EndTime', 'ElapsedTime')
 	stat_attrs = stat_time_attrs + stat_file_attrs
 
 	# Set all stats to None, indicating info not available
@@ -36,10 +36,23 @@ class StatsObj:
 
 	def get_stats_string(self):
 		"""Return string printing out statistics"""
-		slist = ["%s %s" % (attr, self.get_stat(attr))
-				 for attr in self.stat_attrs
+		timelist = []
+		if self.StartTime is not None:
+			timelist.append("StartTime %s (%s)" %
+						(self.StartTime, Time.timetopretty(self.StartTime)))
+		if self.EndTime is not None:
+			timelist.append("EndTime %s (%s)" %
+							(self.EndTime, Time.timetopretty(self.EndTime)))
+		if self.StartTime is not None and self.EndTime is not None:
+			if self.ElapsedTime is None:
+				self.ElapsedTime = self.EndTime - self.StartTime
+			timelist.append("ElapsedTime %s (%s)" %
+				   (self.ElapsedTime, Time.inttopretty(self.ElapsedTime)))
+
+		filelist = ["%s %s" % (attr, self.get_stat(attr))
+					for attr in self.stat_file_attrs
 					if self.get_stat(attr) is not None]
-		return "\n".join(slist)
+		return "\n".join(timelist + filelist)
 
 	def init_stats_from_string(self, s):
 		"""Initialize attributes from string, return self for convenience"""
@@ -78,6 +91,26 @@ class StatsObj:
 			if self.get_stat(attr) != s.get_stat(attr): return None
 		return 1
 
+	def set_to_average(self, statobj_list):
+		"""Set self's attributes to average of those in statobj_list"""
+		for attr in self.stat_attrs: self.set_stat(attr, 0)
+		for statobj in statobj_list:
+			for attr in self.stat_attrs:
+				if statobj.get_stat(attr) is None: self.set_stat(attr, None)
+				elif self.get_stat(attr) is not None:
+					self.set_stat(attr, statobj.get_stat(attr) +
+								  self.get_stat(attr))
+
+		# Don't compute average starting/stopping time		
+		self.StartTime = None
+		self.EndTime = None
+
+		for attr in self.stat_attrs:
+			if self.get_stat(attr) is not None:
+				self.set_stat(attr,
+							  self.get_stat(attr)/float(len(statobj_list)))
+		return self
+
 
 class StatsITR(IterTreeReducer, StatsObj):
 	"""Keep track of per directory statistics

trunk/rdiff-backup/src/ttime.py

@@ -82,6 +82,22 @@ class Time:
 		"""Return pretty version of time given w3 time string"""
 		return cls.timetopretty(cls.stringtotime(timestring))
 
+	def inttopretty(cls, seconds):
+		"""Convert num of seconds to readable string like "2 hours"."""
+		partlist = []
+		hours, seconds = divmod(seconds, 3600)
+		if hours > 1: partlist.append("%d hours" % hours)
+		elif hours == 1: partlist.append("1 hour")
+
+		minutes, seconds = divmod(seconds, 60)
+		if minutes > 1: partlist.append("%d minutes" % minutes)
+		elif minutes == 1: partlist.append("1 minute")
+
+		if seconds == 1: partlist.append("1 second")
+		elif not partlist or seconds > 1:
+			partlist.append("%s seconds" % seconds)
+		return " ".join(partlist)
+
 	def intstringtoseconds(cls, interval_string):
 		"""Convert a string expressing an interval (e.g. "4D2s") to seconds"""
 		def error():