#!/usr/local/bin/python
# describechanges.py
# Wrtten by Josh Grigonis
# Date: 2/2000

import os, re, string, sys, makemetricsfiles
made = 0
if len (sys.argv) < 4:
	print "This command requires the depot path, the previous build label"
	print "and the current build label as parameters."
	print "For Example:"
	print "\tdescribechanges //depot/... JACKALOPE.16 JACKALOPE.17"
	sys.exit(1)

change_pattern = re.compile ('^> Change [0-9]* .*', re.IGNORECASE)
changelist = []

if not os.path.isfile (sys.argv[3] + '.diff'):
	makemetricsfiles.create (sys.argv[1], sys.argv[2], sys.argv[3])
	made = 1
try:
	file = open (sys.argv[3] + '.diff', 'r')
except:
	print "Error opening file " + sys.argv[3] + ".diff"
	sys.exit(1)
for line in file.readlines():
	x = change_pattern.match(line)
	if x != None:
		thestring = x.group()
		thelist = string.split(thestring)
		changelist.append(thelist[2])
		
for x in changelist:
	for line in os.popen ("p4 describe "+x).readlines():
		print line,
	print "\n"
	print "==============================================================================\n"
file.close()
if made == 1:
	os.remove (sys.argv[2] + '.txt')
	os.remove (sys.argv[3] + '.txt')
	os.remove (sys.argv[3] + ".diff")