Mercurial > hg
view tests/revnamesext.py @ 50242:379a78001d8e stable
dirstate: set identity whenever we read the dirstate's v2 docket
The docket can be loaded outside of a full read (for exemple when
pre-fetching parents), so the current code would read/set the identity
after loading the data, opening a race condition:
A0: first process docket is read
B0: other process appends new data to the dirstate (and changes the docket)
A1: first process sets the identity (based on pre-B content, but with post-B identity)
A1: first process loads the dirstatemap from the data file
A1: first process does not detect the race and overwrites the update from B.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 01 Mar 2023 02:38:20 +0100 |
parents | 6000f5b25c9b |
children |
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# Dummy extension to define a namespace containing revision names from mercurial import namespaces def reposetup(ui, repo): names = {b'r%d' % rev: repo[rev].node() for rev in repo} namemap = lambda r, name: names.get(name) nodemap = lambda r, node: [b'r%d' % repo[node].rev()] ns = namespaces.namespace( b'revnames', templatename=b'revname', logname=b'revname', listnames=lambda r: names.keys(), namemap=namemap, nodemap=nodemap, ) repo.names.addnamespace(ns)