D2215: httppeer: remove redundant code to fetch capabilities

[indygreg (Gregory Szorc)]

indygreg created this revision.
Herald added a subscriber: mercurial-devel.
Herald added a reviewer: hg-reviewers.

REVISION SUMMARY
  _fetchcaps() is called by httppeer.instance(), which is the only
  instantiator of httppeer. Since _fetchcaps() always sets self._caps
  and since https://phab.mercurial-scm.org/rHG197d10e157ce848129ff5e7a53cf81d4ca63a932 removed the fallback for cases where the
  remote doesn't support capabilities, we can remove some dead
  code from httppeer.capabilities().

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D2215

AFFECTED FILES
  mercurial/httppeer.py

CHANGE DETAILS

diff --git a/mercurial/httppeer.py b/mercurial/httppeer.py
--- a/mercurial/httppeer.py
+++ b/mercurial/httppeer.py
@@ -221,13 +221,9 @@
     # Begin of _basewirepeer interface.
 
     def capabilities(self):
-        if self._caps is None:
-            try:
-                self._fetchcaps()
-            except error.RepoError:
-                self._caps = set()
-            self.ui.debug('capabilities: %s\n' %
-                          (' '.join(self._caps or ['none'])))
+        # self._fetchcaps() should have been called as part of peer
+        # handshake. So self._caps should always be set.
+        assert self._caps is not None
         return self._caps
 
     # End of _basewirepeer interface.



To: indygreg, #hg-reviewers
Cc: mercurial-devel