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1 #!/usr/bin/env python |
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2 # ==================================================================== |
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3 # Copyright (c) 2007 CollabNet. All rights reserved. |
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4 # |
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5 # This software is licensed as described in the file COPYING, which |
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6 # you should have received as part of this distribution. The terms |
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7 # are also available at http://subversion.tigris.org/license-1.html. |
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8 # If newer versions of this license are posted there, you may use a |
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9 # newer version instead, at your option. |
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10 # |
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11 # This software consists of voluntary contributions made by many |
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12 # individuals. For exact contribution history, see the revision |
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13 # history and logs, available at http://subversion.tigris.org/. |
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14 # ==================================================================== |
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15 HGMERGE_BINARY='hgmerge' |
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16 |
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17 '''This script allows using Mercurial's hgmerge script with Subversion. |
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18 ''' |
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19 |
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20 import os |
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21 import sys |
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22 import shutil |
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23 import tempfile |
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24 |
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25 def do_hgmerge(base, repo, local, merged): |
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26 '''Runs an interactive three-way merge using Mercurial's hgmerge script. |
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27 |
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28 This function is designed to convert Subversion's four-file interactive merges |
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29 into Mercurial's three-file interactive merges so that hgmerge can be used for |
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30 interactive merging in subversion. |
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31 ''' |
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32 # We have to use a temporary directory because FileMerge on OS X fails to save |
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33 # the file if it has to write to a file in the CWD. As of now, there's no |
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34 # obvious reason for why that is, but this fixes it. |
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35 temp_dir = tempfile.mkdtemp(prefix='svn_hgmerge') |
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36 local_name = local.split('/')[-1] |
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37 temp_file = temp_dir+'/'+local_name |
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38 shutil.copyfile(local, temp_file) |
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39 args = [HGMERGE_BINARY, temp_file, base, repo] |
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40 status = os.spawnvp(os.P_WAIT, HGMERGE_BINARY, args) |
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41 print status |
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42 if status == 0: |
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43 os.unlink(merged) |
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44 shutil.copyfile(temp_file, merged) |
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45 os.unlink(temp_file) |
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46 os.rmdir(temp_dir) |
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47 return status |
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48 |
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49 if __name__ == '__main__': |
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50 status = do_hgmerge(sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4]) |
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51 sys.exit(status) |
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52 |