ui.py: remove revlogopts and (unused) diffcache variables This should make the [revlog] section in a .hg/hgrc file be respected when there's still no changelog.

ui.py: don't let parent and child ui objects share header and prev_header

ui.py: use correct parentui while copying readhooks

changectx: search manifest delta for filenode

context: check self.__dict__ instead of using hasattr hasattr implicitly calls getattr, instantiating the field it is checking for.

Teach bdiff to support buffer objects manifest.add gives revlog.addrevision a buffer object, which may be cached and used for a second call in the same session (as mq does when pushing multiple patches). The other option would be to cast the buffer to str when caching it.

Test case for bdiff on buffer objects

hgweb: globally default to tip if no revision is specified

Support buffer interface in base85 codec

merge with crew

fix traceback of extdiff after a merge - files that comes from a different branch are marked as modified but aren't present in the original manifest - add a testcase for extdiff and for regular diff

Don't generate git diff header for empty diffs