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repository: establish API for emitting revision deltas With our revision delta and revision delta request interfaces defined, it is now time to define a method on storage interfaces for using them. So far, the only storage interface that is well-defined and used is file storage. So that is the only interface we need to add a method on. We define an ``emitrevisiondeltas()`` method that takes an iterable of ``irevisiondeltarequest``s and turns them into ``irevisiondelta`` instances. changegroup._handlerevisiondeltarequest() and the looping logic from changegroup.deltagroup() has effectively been moved to revlog.emitrevisiondeltas(). Our filelog wrapper class proxies its emitrevisiondeltas() to the internal revlog instance. The simple store test extension used to verify sanity of storage abstractions has also implemented emitrevisiondeltas() for file storage and the test harness when run with this extension doesn't seem to exhibit any regressions. Rather than create a shared type to represent revision deltas, each storage backend has its own type and the class name identifies where the revision delta was derived from. Differential Revision: https://phab.mercurial-scm.org/D4226
author Gregory Szorc <gregory.szorc@gmail.com>
date Thu, 09 Aug 2018 16:02:14 -0700
parents 93777d16a25d
children 0a5b20c107a6
comparison
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39230:b518d495a560 39231:b41d023a412a
93 return self._revlog.revision(node, _df=_df, raw=raw) 93 return self._revlog.revision(node, _df=_df, raw=raw)
94 94
95 def revdiff(self, rev1, rev2): 95 def revdiff(self, rev1, rev2):
96 return self._revlog.revdiff(rev1, rev2) 96 return self._revlog.revdiff(rev1, rev2)
97 97
98 def emitrevisiondeltas(self, requests):
99 return self._revlog.emitrevisiondeltas(requests)
100
98 def addrevision(self, revisiondata, transaction, linkrev, p1, p2, 101 def addrevision(self, revisiondata, transaction, linkrev, p1, p2,
99 node=None, flags=revlog.REVIDX_DEFAULT_FLAGS, 102 node=None, flags=revlog.REVIDX_DEFAULT_FLAGS,
100 cachedelta=None): 103 cachedelta=None):
101 return self._revlog.addrevision(revisiondata, transaction, linkrev, 104 return self._revlog.addrevision(revisiondata, transaction, linkrev,
102 p1, p2, node=node, flags=flags, 105 p1, p2, node=node, flags=flags,