Mercurial > hg-stable
changeset 47148:1b33e38d4b6d
revlog: highlight current incompatibility in `rewrite_sidedata`
See comment for details. We will need to fix the test coverage when this
incompatibility is lifted.
Differential Revision: https://phab.mercurial-scm.org/D10544
| author | Pierre-Yves David <pierre-yves.david@octobus.net> |
|---|---|
| date | Mon, 03 May 2021 12:18:58 +0200 |
| parents | 5e5fad5166e6 |
| children | 1352cc14cce2 |
| files | mercurial/revlog.py |
| diffstat | 1 files changed, 12 insertions(+), 0 deletions(-) [+] |
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--- a/mercurial/revlog.py Mon May 03 12:18:48 2021 +0200 +++ b/mercurial/revlog.py Mon May 03 12:18:58 2021 +0200 @@ -3082,6 +3082,18 @@ # Nothing to generate or remove return + # changelog implement some "delayed" writing mechanism that assume that + # all index data is writen in append mode and is therefor incompatible + # with the seeked write done in this method. The use of such "delayed" + # writing will soon be removed for revlog version that support side + # data, so for now, we only keep this simple assert to highlight the + # situation. + delayed = getattr(self, '_delayed', False) + diverted = getattr(self, '_divert', False) + if delayed and not diverted: + msg = "cannot rewrite_sidedata of a delayed revlog" + raise error.ProgrammingError(msg) + new_entries = [] # append the new sidedata with self._datafp(b'a+') as fp: