#!/usr/bin/env python
#------------------------------------------------------------------------------
# Copyright (c) Perforce Software, Inc., 2007-2015. All rights reserved
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"""
Usage:
 	remove_empty_pending_changes.py

This script will remove all of the empty pending changelists on the server.
"""

import os
import re
import string
import sys
import time
import platform
import ConfigParser

if len(sys.argv) > 1:
  SDP_INSTANCE = str(sys.argv[1])
else:
  SDP_INSTANCE = '1'

config = ConfigParser.RawConfigParser()
config.read('maintenance.cfg')

##########################################################################
#####                                                                #####
#####  CONFIGURATION VARIABLES: Modify in maintenance.cfg as needed. #####
#####                                                                #####

server = (config.get(SDP_INSTANCE, 'server'))
p4user = (config.get(SDP_INSTANCE, 'p4user'))
passwd = (config.get(SDP_INSTANCE, 'passwd'))

if platform.system() == "Windows": 
  p4="p4.exe -p %s -u %s" % (server, p4user)
else:
  p4="/p4/1/bin/p4_1  -p %s -u %s" % (server, p4user)

os.system('echo %s| %s login' % (passwd, p4))

os.system( "%s changes -s pending > pending.txt" % p4 )

input = open( "pending.txt", "r" )
	
for line in input.readlines():
    line = line.rstrip()
    line = re.sub( r"^Change", r"%s change -f -d" % p4, line )
    line = re.sub( r" on .*", "", line )
    os.system (line)

input.close()
os.remove( "pending.txt" )