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bzrlib/msgeditor.py
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"""Commit message editor support."""
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import os
 
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import errno
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from subprocess import call
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import bzrlib.config as config
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    """Try to execute an editor to edit the commit message."""
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    for e in _get_editor():
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        edargs = e.split(' ')
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        x = call(edargs + [filename])
 
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        try:
 
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            x = call(edargs + [filename])
 
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        except OSError, e:
 
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           # ENOENT means no such editor
 
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           if e.errno == errno.ENOENT:
 
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               continue
 
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           raise
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        if x == 0:
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            return True
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        elif x == 127: