#!/usr/bin/env python
#==============================================================================
# Copyright and license info is available in the LICENSE file included with
# the Server Deployment Package (SDP), and also available online:
# https://swarm.workshop.perforce.com/projects/perforce-software-sdp/view/main/LICENSE
#------------------------------------------------------------------------------

"""
Usage:
 	remove_empty_pending_changes.py

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

import os
import re
import sys
import sdputils

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

utils = sdputils.SDPUtils(SDP_INSTANCE)
config = utils.config
p4 = utils.p4
utils.login()

def main():
    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" )


###############################################################################
# main
if __name__ == "__main__":
    main()