diff mercurial/changelog.py @ 46714:f63299ee7e4d

revlog: add attribute on revlogs that specifies its kind

The sidedata logic needs to check whether the revlog it's working on is a
changelog, a manifest or a filelog.
Furthermore, future versions of the revlog format will most likely see a split
between the three types (i.e. they will store different information), so having
this will be useful for other future endeavors as well.

Differential Revision: https://phab.mercurial-scm.org/D10151

--- a/mercurial/changelog.py	Fri Feb 19 10:53:27 2021 +0100
+++ b/mercurial/changelog.py	Wed Mar 10 19:33:18 2021 +0100
@@ -428,6 +428,7 @@
         self._filteredrevs = frozenset()
         self._filteredrevs_hashcache = {}
         self._copiesstorage = opener.options.get(b'copies-storage')
+        self.revlog_kind = b'changelog'
 
     @property
     def filteredrevs(self):