#!/bin/env python
# MODIFY BELOW vvvvvvvvvvvvvvvvvvvvvvvvvvvvvv

NOTIFY = (
   # Repo,                          path,           to_emails,            from_email
   (r'^/home/svnaccount/svn$',   r'^digital/',   ['billyray@example.com'],   'bobray@example.com' ),

)

SMTP_PASSFILE = '/home/bobray/.sentp'
SMTP_ADR = 'mail.example.com'
SMTP_ACCOUNT = 'bobray@example.com'

TEMP_DIR = '/tmp'

DEBUG = True

# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ END MODIFY

# LEAVE THE REST ALONE
# UNLESS YOU KNOW WHAT YOUR DOING

import smtplib
import os
import re

def sendmail(fromaddr,toaddrs,subject,inmsg):

   msg = ("From: %s\r\nTo: %s\r\nSubject: %s\r\n" % (fromaddr, ", ".join(toaddrs), subject))
   msg += inmsg

   f = open(SMTP_PASSFILE)

   server = smtplib.SMTP(SMTP_ADR)
   server.login(SMTP_ACCOUNT,f.readline())
   f.close()

   if DEBUG:
      server.set_debuglevel(1)
   server.sendmail(fromaddr, toaddrs, msg)
   server.quit()

def getdirs(rev,repo):
   tmpfile = "%s/svndir%s" % (TEMP_DIR, rev)
   os.system("touch %s" % tmpfile)
   cmd = "svnlook dirs-changed -r%s '%s' > '%s'" % (rev,repo,tmpfile)
   os.system(cmd)
   if DEBUG:
      print "getdirs() => %s" %cmd
   dirs = []
   f = open(tmpfile)
   for dir in f.read().split("\n"):
      if dir != '':
         dirs.append(dir)
   f.close()
   os.system("rm '%s'"%tmpfile)
   if DEBUG:
      print "DIRS: %s" % dirs
   return dirs
   
def getinfo(what, rev, repo):
   out = ""
   tmpfile = "%s/svn%s" % (TEMP_DIR, rev)
   os.system("touch '%s'" % tmpfile)
   os.system("svn %s -r%s 'file://%s' > '%s'" % (what, rev, repo, tmpfile))
   f = open(tmpfile)
   out += f.read()
   f.close()
   os.system("rm '%s'"%tmpfile)
   if DEBUG:
      print "getinfo(%s,%s,%s) = %s" % (what,rev,repo,out)
   return out

import sys
repo = sys.argv[1]
rev = sys.argv[2]

dirs = getdirs(rev,repo)

for entry in  NOTIFY:
   if DEBUG:
      print entry
   log = "Commit #%s\n" % rev
   dif = "\n\nDETAILS\n"
   for dir in dirs:
      if DEBUG:
         print "looking at %s with %s\n" %  (dir,entry[1])
      if  re.findall(entry[1], dir) != []:
         if DEBUG:
            print "found %s\n" % dir
         log += getinfo("log -v",rev,"%s/%s"% (repo,dir))
         dif += getinfo("diff",str(int(rev)-1),"%s/%s"% (repo,dir))

   if dif != "Changes:\n":      
      sendmail(entry[3], entry[2], "Subversion Commit #%s  %s" % (rev,repo),log+dif)