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comparison mercurial/revlogutils/deltas.py @ 41819:688fc33e105d

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storage: introduce a `revlog.reuse-external-delta` config This option goes a bit further and provides a way to get the same behavior as the `re-delta-all` optimisation from `hg debugupgraderepo`. The effect of the option is a bit hard to test as we do not have multiple diff algorithm at hand. However, we at least make sure the code path run.
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Wed, 27 Feb 2019 12:40:18 +0100
parents 189e06b2d719
children 566daffc607d
comparison
equal deleted inserted replaced
41818:f6eff9e4de80 41819:688fc33e105d
914 currentbase = cachebase 914 currentbase = cachebase
915 while (currentbase != nullrev 915 while (currentbase != nullrev
916 and currentbase != base 916 and currentbase != base
917 and self.revlog.length(currentbase) == 0): 917 and self.revlog.length(currentbase) == 0):
918 currentbase = self.revlog.deltaparent(currentbase) 918 currentbase = self.revlog.deltaparent(currentbase)
919 if currentbase == base: 919 if self.revlog._lazydelta and currentbase == base:
920 delta = revinfo.cachedelta[1] 920 delta = revinfo.cachedelta[1]
921 if delta is None: 921 if delta is None:
922 delta = self._builddeltadiff(base, revinfo, fh) 922 delta = self._builddeltadiff(base, revinfo, fh)
923 revlog = self.revlog 923 revlog = self.revlog
924 header, data = revlog.compress(delta) 924 header, data = revlog.compress(delta)