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comparison mercurial/revlogutils/nodemap.py @ 44338:2ea6a67ff502

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nodemap: write new data from the expected current data length If the amount of data in the file exceed the expect amount, we will overwrite the extra data. This is a simple way to be safer. Differential Revision: https://phab.mercurial-scm.org/D7891
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Wed, 15 Jan 2020 15:50:43 +0100
parents 1d2b37def017
children c7eebdb15139
comparison
equal deleted inserted replaced
44337:1d2b37def017 44338:2ea6a67ff502
90 data = None 90 data = None
91 else: 91 else:
92 datafile = _rawdata_filepath(revlog, target_docket) 92 datafile = _rawdata_filepath(revlog, target_docket)
93 # EXP-TODO: if this is a cache, this should use a cache vfs, not a 93 # EXP-TODO: if this is a cache, this should use a cache vfs, not a
94 # store vfs 94 # store vfs
95 with revlog.opener(datafile, b'a') as fd: 95 with revlog.opener(datafile, b'r+') as fd:
96 fd.seek(target_docket.data_length)
96 fd.write(data) 97 fd.write(data)
97 target_docket.data_length += len(data) 98 target_docket.data_length += len(data)
98 target_docket.data_unused += data_changed_count 99 target_docket.data_unused += data_changed_count
99 100
100 if data is None: 101 if data is None: