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    <p>I've written a diff script for workbench files which can be integrated with TortoiseSVN and TortoiseGit, which will exactly do what Jim Lewis suggests: Extract the actual XML from the archive and diff it. </p> <p>The script will also eliminate all the <em>ptr</em>-Attribute noise in the diff. Merging is not possible and would be a bit more complicated (discover how the <em>ptr</em>-attributes would behave, re-pack the XML into the archive, what's with the other metadata in the archive?, ...)</p> <p>The python script is available at pastebin under CC-BY 3.0:</p> <p><a href="http://pastebin.com/AcD7dBNH" rel="nofollow">http://pastebin.com/AcD7dBNH</a></p> <pre class="lang-py prettyprint-override"><code># 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) &lt; 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) </code></pre>
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    1. POSubversion diff for zipped xml file
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    1. COPython 3 needs `print("")` instead of `print ""`. Furthermore `os.tempnam` got removed, I use `tempfile.mkdtemp` instead. Finally I had to wrapp `zipA.read(...)` with `bytes.decode(zipA.read("docu..."))`.
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      1. USMicha Wiedenmann
 

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