Mercurial > hg-stable
changeset 44372:2ea6a67ff502
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 |
| files | mercurial/revlogutils/nodemap.py |
| diffstat | 1 files changed, 2 insertions(+), 1 deletions(-) [+] |
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--- a/mercurial/revlogutils/nodemap.py Wed Jan 15 15:50:33 2020 +0100 +++ b/mercurial/revlogutils/nodemap.py Wed Jan 15 15:50:43 2020 +0100 @@ -92,7 +92,8 @@ datafile = _rawdata_filepath(revlog, target_docket) # EXP-TODO: if this is a cache, this should use a cache vfs, not a # store vfs - with revlog.opener(datafile, b'a') as fd: + with revlog.opener(datafile, b'r+') as fd: + fd.seek(target_docket.data_length) fd.write(data) target_docket.data_length += len(data) target_docket.data_unused += data_changed_count