Mercurial > public > mercurial-scm > hg-stable
diff mercurial/revlogutils/nodemap.py @ 44352:6c07480d6659
nodemap: add a function to read the data from disk
This changeset is small and mostly an excuse to introduce an API function
reading the data from disk.
Differential Revision: https://phab.mercurial-scm.org/D7836
| author | Pierre-Yves David <pierre-yves.david@octobus.net> |
|---|---|
| date | Wed, 15 Jan 2020 15:47:31 +0100 |
| parents | 5962fd0d1045 |
| children | daad3aace942 |
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--- a/mercurial/revlogutils/nodemap.py Wed Jan 15 15:47:21 2020 +0100 +++ b/mercurial/revlogutils/nodemap.py Wed Jan 15 15:47:31 2020 +0100 @@ -22,6 +22,13 @@ raise error.RevlogError(b'unknown node: %s' % x) +def persisted_data(revlog): + """read the nodemap for a revlog from disk""" + if revlog.nodemap_file is None: + return None + return revlog.opener.tryread(revlog.nodemap_file) + + def setup_persistent_nodemap(tr, revlog): """Install whatever is needed transaction side to persist a nodemap on disk