# HG changeset patch
# User Gregory Szorc <gregory.szorc@gmail.com>
# Date 1533868074 25200
# Node ID 3682b49e0213a078778e75efb805dac48d33bb79
# Parent  8b9b93bf70b1c123e2124764f8d3c5c4a532bafe
repository: remove candelta() from ifileindex

candelta() was previously called by changegroup code. With delta
generation moved to the storage API, there are no more external
consumers of this method and it can be removed from the storage
interface.

Differential Revision: https://phab.mercurial-scm.org/D4236

diff -r 8b9b93bf70b1 -r 3682b49e0213 mercurial/filelog.py
--- a/mercurial/filelog.py	Thu Aug 09 19:30:36 2018 -0700
+++ b/mercurial/filelog.py	Thu Aug 09 19:27:54 2018 -0700
@@ -76,9 +76,6 @@
     def deltaparent(self, rev):
         return self._revlog.deltaparent(rev)
 
-    def candelta(self, baserev, rev):
-        return self._revlog.candelta(baserev, rev)
-
     def iscensored(self, rev):
         return self._revlog.iscensored(rev)
 
diff -r 8b9b93bf70b1 -r 3682b49e0213 mercurial/repository.py
--- a/mercurial/repository.py	Thu Aug 09 19:30:36 2018 -0700
+++ b/mercurial/repository.py	Thu Aug 09 19:27:54 2018 -0700
@@ -552,9 +552,6 @@
     def deltaparent(rev):
         """"Return the revision that is a suitable parent to delta against."""
 
-    def candelta(baserev, rev):
-        """"Whether a delta can be generated between two revisions."""
-
 class ifiledata(interfaceutil.Interface):
     """Storage interface for data storage of a specific file.
 
diff -r 8b9b93bf70b1 -r 3682b49e0213 tests/simplestorerepo.py
--- a/tests/simplestorerepo.py	Thu Aug 09 19:30:36 2018 -0700
+++ b/tests/simplestorerepo.py	Thu Aug 09 19:27:54 2018 -0700
@@ -241,7 +241,7 @@
         p1node = self.parents(self.node(rev))[0]
         return self.rev(p1node)
 
-    def candelta(self, baserev, rev):
+    def _candelta(self, baserev, rev):
         validaterev(baserev)
         validaterev(rev)
 
@@ -527,7 +527,7 @@
                 # for choosing a delta parent.
                 baserev = self.deltaparent(rev)
 
-                if baserev != nullrev and not self.candelta(baserev, rev):
+                if baserev != nullrev and not self._candelta(baserev, rev):
                     baserev = nullrev
 
             revision = None