D10151: revlog: add attribute on revlogs that specifies its kind

[Alphare (Raphaël Gomès)]

Alphare created this revision.
Herald added a reviewer: hg-reviewers.
Herald added a subscriber: mercurial-patches.

REVISION SUMMARY
  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.

REPOSITORY
  rHG Mercurial

BRANCH
  default

REVISION DETAIL
  https://phab.mercurial-scm.org/D10151

AFFECTED FILES
  mercurial/changelog.py
  mercurial/filelog.py
  mercurial/manifest.py

CHANGE DETAILS

diff --git a/mercurial/manifest.py b/mercurial/manifest.py
--- a/mercurial/manifest.py
+++ b/mercurial/manifest.py
@@ -1610,6 +1610,7 @@
         self.index = self._revlog.index
         self.version = self._revlog.version
         self._generaldelta = self._revlog._generaldelta
+        self._revlog.revlog_kind = b'manifest'
 
     def _setupmanifestcachehooks(self, repo):
         """Persist the manifestfulltextcache on lock release"""
diff --git a/mercurial/filelog.py b/mercurial/filelog.py
--- a/mercurial/filelog.py
+++ b/mercurial/filelog.py
@@ -32,6 +32,7 @@
         # Full name of the user visible file, relative to the repository root.
         # Used by LFS.
         self._revlog.filename = path
+        self._revlog.revlog_kind = b'filelog'
 
     def __len__(self):
         return len(self._revlog)
diff --git a/mercurial/changelog.py b/mercurial/changelog.py
--- a/mercurial/changelog.py
+++ b/mercurial/changelog.py
@@ -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):



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