我为工作台文件编写了一个 diff 脚本,它可以与 TortoiseSVN 和 TortoiseGit 集成,这将完全按照 Jim Lewis 的建议:从存档中提取实际的 XML 并对其进行比较。
该脚本还将消除差异中的所有ptr -Attribute 噪声。合并是不可能的,而且会有点复杂(发现ptr属性的行为方式,将 XML 重新打包到存档中,存档中的其他元数据是什么?,...)
python 脚本在 CC-BY 3.0 下的 pastebin 中可用:
http://pastebin.com/AcD7dBNH
# extensions: mwb
# TortoiseSVN Diff script for MySQL Workbench scheme files
# 2012 by Oliver Iking, Z-Software GmbH, oliverikingREPLACETHISWITHANATz-software.net, http://www.z-software.net/
# This work is licensed under a Creative Commons Attribution 3.0 Unported License - http://creativecommons.org/licenses/by/3.0/
# Will produce two diffable documents, which don't resemble the FULL MWB content, but the scheme relevant data.
# Merging is not possible
# Open your TortoiseSVN (or TortoiseSomething) settings, go to the "Diff Viewer" tab and click on "Advanced". Add
# a row with the extension ".mwb" and a command line of
# "path\to\python.exe" "path\to\diff-mwb.py" %base %mine
# Apply changes and now you can diff mysql workbench scheme files
import sys
import zipfile
import os
import time
import tempfile
import re
# mysql workbench XML will have _ptr_ attributes which are modified on each save for almost each XML node. Remove the visual litter,
# make actual changes stand out.
def sanitizeMwbXml( xml ):
return re.sub('_ptr_="([0-9a-fA-F]{8})"', '', xml)
try:
if len(sys.argv) < 2:
print("Not enough parameters, cannot diff documents!")
sys.exit(1)
docOld = sys.argv[1]
docNew = sys.argv[2]
if not os.path.exists(docOld) or not os.path.exists(docNew):
print("Documents don't exist, cannot diff!")
sys.exit(1)
# Workbench files are actually zip archives
zipA = zipfile.ZipFile( docOld, 'r' )
zipB = zipfile.ZipFile( docNew, 'r' )
tempSubpath = os.tempnam(None,"mwbcompare")
docA = os.path.join( tempSubpath, "mine.document.mwb.xml" )
docB = os.path.join( tempSubpath, "theirs.document.mwb.xml" )
os.makedirs( tempSubpath )
if os.path.exists(docA) or os.path.exists(docB):
print("Cannot extract documents, files exist!")
sys.exit(1)
# Read, sanitize and write actual scheme XML contents to temporary files
docABytes = sanitizeMwbXml(zipA.read("document.mwb.xml" ))
docBBytes = sanitizeMwbXml(zipB.read("document.mwb.xml" ))
docAFile = open(docA, "w")
docBFile = open(docB, "w")
docAFile.write(docABytes)
docBFile.write(docBBytes)
docAFile.close()
docBFile.close()
os.system("TortoiseProc /command:diff /path:\"" + docA + "\" /path2:\"" + docB + "\"");
# TortoiseProc will spawn a subprocess so we can't delete the files. They're in the tempdir, so they
# will be cleaned up eventually
#os.unlink(docA)
#os.unlink(docB)
sys.exit(0)
except Exception as e:
print str(e)
# Sleep, or the command window will close
time.sleep(5)