Revision 1d466a4f lib/utils.py
| b/lib/utils.py | ||
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RemoveEtcHostsEntry(constants.ETC_HOSTS, hi.ShortName()) |
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def TimestampForFilename(): |
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"""Returns the current time formatted for filenames. |
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The format doesn't contain colons as some shells and applications them as |
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separators. |
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""" |
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return time.strftime("%Y-%m-%d_%H_%M_%S")
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def CreateBackup(file_name): |
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"""Creates a backup of a file. |
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| ... | ... | |
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raise errors.ProgrammerError("Can't make a backup of a non-file '%s'" %
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file_name) |
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prefix = '%s.backup-%d.' % (os.path.basename(file_name), int(time.time())) |
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prefix = ("%s.backup-%s." %
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(os.path.basename(file_name), TimestampForFilename())) |
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dir_name = os.path.dirname(file_name) |
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fsrc = open(file_name, 'rb') |
| ... | ... | |
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(fd, backup_name) = tempfile.mkstemp(prefix=prefix, dir=dir_name) |
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fdst = os.fdopen(fd, 'wb') |
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try: |
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logging.debug("Backing up %s at %s", file_name, backup_name)
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shutil.copyfileobj(fsrc, fdst) |
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finally: |
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fdst.close() |
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