localrepo: use file API via vfs while ensuring repository directory...
localrepo: use file API via vfs while ensuring repository directory
As a part of migration to vfs, this patch invokes some file API
indirectly via vfs, while ensuring repository directory in the
constructor of "localrepository" class.
New file API are added to "scmutil.abstractopener" class, because they
are also used via other derived classes than "scmutil.opener".
But "join()" is not yet defined other than "scmutil.opener" class,
because it should not be used via other opener classes yet.