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createChangeLog.py
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createChangeLog.py
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#!/usr/bin/python3
# -*- coding: utf-8 -*-
# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
import m3
import sys
import os.path
import argparse
import time
modelFileName = sys.argv[1]
class ChangeLogCreator:
def __init__(self, modelFileName, logFileName):
self.modelFileName = modelFileName
self.logFileName = logFileName
def createChangeLog(self):
self.logFile = open(self.logFileName, "w")
try:
previousModelModiticationTime = os.path.getmtime(self.modelFileName)
self.log("Log file started at %s" % time.ctime(previousModelModiticationTime))
previousModel = m3.loadModel(self.modelFileName, checkExpectedValue=False)
while True:
currentModelModificationTime = os.path.getmtime(self.modelFileName)
if currentModelModificationTime > previousModelModiticationTime:
self.log("")
self.log("File modified at %s" % time.ctime(currentModelModificationTime))
currentModel = m3.loadModel(self.modelFileName)
self.changedAnimationIds = 0
self.compareM3Structures(previousModel, currentModel, "model")
if self.changedAnimationIds > 0:
self.log("%d animation ids have changed!" % self.changedAnimationIds)
previousModelModiticationTime = currentModelModificationTime
previousModel = currentModel
time.sleep(0.1)
finally:
self.logFile.close()
def compareM3Structures(self, previous, current, structurePath):
previousType = previous.structureDescription
currentType = current.structureDescription
if currentType.structureName != previousType.structureName:
self.log("%s changed its structure type from %s to %s" % (structurePath, previousType.structureName, currentType.structureName))
return
if currentType.structureVersion != previousType.structureVersion:
self.log("%s changed its structure version from %s to %s" % (structurePath, previousType.structureVersion, currentType.structureVersion))
return
for field in previousType.fields:
fieldPath = structurePath + "." + field.name
previousFieldContent = getattr(previous, field.name)
currentFieldContent = getattr(current, field.name)
if isinstance(field, m3.EmbeddedStructureField):
self.compareM3Structures(previousFieldContent, currentFieldContent, fieldPath)
elif isinstance(field, m3.StructureReferenceField):
currentLength = len(currentFieldContent)
previousLength = len(previousFieldContent)
if len(currentFieldContent) != previousLength:
self.log("The length of %s changed from %d to %d" % (fieldPath, previousLength, currentLength))
else:
elementIndex = 0
for previousElement, currentElement in zip(previousFieldContent, currentFieldContent):
elementPath = "%s[%d]" % (fieldPath, elementIndex)
self.compareM3Structures(previousElement, currentElement, elementPath)
elementIndex += 1
else:
if currentFieldContent != previousFieldContent:
if field.name != "animId" and field.name != "uniqueUnknownNumber":
if isinstance(field, m3.IntField):
previousFieldContentStr = hex(previousFieldContent)
currentFieldContentStr = hex(currentFieldContent)
else:
previousFieldContentStr = str(previousFieldContent)
currentFieldContentStr = str(currentFieldContent)
self.log("%s changed from %s to %s" % (fieldPath, previousFieldContentStr, currentFieldContentStr))
else:
self.changedAnimationIds += 1
def log(self, message):
self.logFile.write(str(message) + "\n")
print(message)
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument('m3File', help="The m3 file for which a change log should be created")
parser.add_argument('--log-file', '-l', help='Directory in which m3 files will be placed')
args = parser.parse_args()
modelFileName = args.m3File
logFileName = args.log_file
if logFileName is None:
logFileName = modelFileName[:-3] + "-changelog.txt"
changeLogCreator = ChangeLogCreator(modelFileName, logFileName)
changeLogCreator.createChangeLog()