create a log file from SVN and use the following python code to edit it and make some plots

logstats.py

#!/usr/bin/env python                                                           

import datetime
import re

from ROOT import TH1D, TFile                                                   

fname = 'mylog'

tlf = open(fname,'r')
stdate = int(datetime.datetime(2010,1,1).strftime('%s'))
endate = int(datetime.datetime(2013,4,1).strftime('%s'))
orf = TFile(fname + '.root','recreate')                                           
hist = TH1D('hist','hist',30, stdate, endate)                         

authordic = {}

def getDate(rd):
  try:
    date_epoch = datetime.datetime.strptime(revDate, '%Y-%m-%d %H:%M:%S -0800').strftime('%s')
    return date_epoch
  except:
    date_epoch = datetime.datetime.strptime(revDate, '%Y-%m-%d %H:%M:%S -0700').strftime('%s')
    return date_epoch

for aline in tlf:
  if re.match('r[0-9]+',aline):
    sline = aline.split('|')
    #print sline
    revDate = sline[2].split('(')[0].strip(' ')
    revNum = sline[0].split('r')[1].strip(' ')
    author = sline[1].strip(' ')
    if author not in authordic:
      authordic[author] = 1
    elif author in authordic:
      authordic[author] = authordic[author] + 1

    date_epoch = float(getDate(revDate))          
    hist.Fill(date_epoch)                                                      
    print revNum, ":", date_epoch

print authordic
hist.Draw()
raw_input()
hist.Write()
orf.Close()