#!/usr/bin/env python
################################################################################
#
# Copyright (c) 2011, Perforce Software, Inc.  All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1.  Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer.
#
# 2.  Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL PERFORCE SOFTWARE, INC. BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# = Description
#
#   Collect the full integration history of a file
#
# = Usage
#   
#   integ-history.py [-C0|-C1] a_filename_in_depot_syntax > history.log
#
# = Important note:
#
#   Automatic case sensitivity detection for 2010.1 server or greater,
#   for previous server releases, you must specify the -C flag:
#   0 for case sensitive server
#   1 for case insensitive server
#
################################################################################

import getopt
import re
from subprocess import Popen, PIPE
import sys

FOUND = set()

def cmdUsage():
    print >> sys.stderr, "Usage: integ-history.py [-C0|-C1] filename_in_depot_syntax"
    exit(0)

def caseHandling():
    caseType = "sensitive"
    p = Popen('p4 info', shell=True, stdout=PIPE).stdout
    for line in p.read().splitlines():
        match = re.search('(Server version: .*)', line)
        if match:
           print match.group(1)
        else:
           match = re.search('Case Handling: (.*)', line)
           if match:
              print "Case Handling detected:",match.group(1)
              caseType = match.group(1)
    return caseType

def filelog(file,caseType):
    if caseType == "insensitive":
       file = file.lower()
    if not file in FOUND:
       FOUND.add(file)
       cmd = [ 'p4', 'filelog', '-1', '-t', file ]
       p = Popen(cmd, stdout=PIPE).stdout
       s = p.read()
       for line in s.splitlines():
           print line
       for line in s.splitlines():
           match = re.search('... ... .* (\/\/.*?)#', line)
           if match:
              filelog(match.group(1),caseType) 

if __name__ == '__main__':
  caseType = caseHandling()
  
  options, remainder = getopt.getopt(sys.argv[1:], 'C:')
  for opt, arg in options:
      if (opt == '-C'):
         if (arg == '1'):
            caseType = "sensitive"
         else:
            caseType = "insensitive"
  if not remainder:
     cmdUsage()
  file = remainder[0]
  match = re.search('\/\/.*', file)
  if not file or not match:
     cmdUsage()
  print "Case Handling selected:",caseType
  filelog(file, caseType)