revlog: explicitly set revlogv0 in vfs options
Relying on having an attribute or not for something so fundamental seems too
fragile to me. (And indeed I had issue with that later in this series). So we
explicitly record the fact the repository use revlog-v0.
Differential Revision: https://phab.mercurial-scm.org/D6934
--- a/mercurial/localrepo.py Fri Sep 27 00:11:03 2019 +0200
+++ b/mercurial/localrepo.py Fri Sep 27 06:24:42 2019 +0200
@@ -748,6 +748,8 @@
# meaningful on such old repos.
if b'revlogv1' in requirements or REVLOGV2_REQUIREMENT in requirements:
options.update(resolverevlogstorevfsoptions(ui, requirements, features))
+ else: # explicitly mark repo as using revlogv0
+ options['revlogv0'] = True
return options
--- a/mercurial/revlog.py Fri Sep 27 00:11:03 2019 +0200
+++ b/mercurial/revlog.py Fri Sep 27 06:24:42 2019 +0200
@@ -363,10 +363,7 @@
newversionflags = REVLOGV1 | FLAG_INLINE_DATA
if 'generaldelta' in opts:
newversionflags |= FLAG_GENERALDELTA
- elif getattr(self.opener, 'options', None) is not None:
- # If options provided but no 'revlog*' found, the repository
- # would have no 'requires' file in it, which means we have to
- # stick to the old format.
+ elif 'revlogv0' in getattr(self.opener, 'options', {}):
newversionflags = REVLOGV0
else:
newversionflags = REVLOG_DEFAULT_VERSION