revlog: add "iscensored()" to revlog public API
The iscensored method will be used by the exchange layer to reject
nonconforming deltas involving censored revisions (and to produce
conforming deltas).
For background and broader design of the censorship feature, see:
http://mercurial.selenic.com/wiki/CensorPlan
filelog: allow censored files to contain padding data
To ensure delta compatibility, when a revision is censored, it is
padded to match the original data in size. The previous check does
not allow for padding because it was added before padding was found
to be a requirement.
For more background and design of the censorship feature, see:
mercurial.selenic.com/wiki/CensorPlan
revset: drop factory that promotes spanset to fullreposet
All callers use fullreposet where appropriate.
Backed out changeset
fbae659543cf
revset: specify fullreposet without using spanset factory
The factory function will be removed because the subsequent patches will
make fullreposet(repo) not fully compatible with spanset(repo).
revset: make match function initiate query from full set by default
This change is intended to avoid exposing the implementation detail to
callers. I'm going to extend fullreposet to support "null" revision, so
these mfunc calls will have to use fullreposet() instead of spanset().
localrepo: don't reintroduce pruned tag entries when tagging
If a commit and a followup tag commit are pruned, there are no references to it
in any non obsolete version of .hgtags. Without this change however, the next
time a tag is added to another branch, the obsolete references are appended in
.hgtags before the new entries for the current tag command.
The annotation to unfilter localrepo._tag() has been around since
b3af182a1944.
The log message for it mentions computing the tag cache though, so I'm not sure
if this was misplaced? It looks like branchmap was aware of filtering then, and
now tracks a cache per view.
histedit: switch state to store node instead of ctx
Currently, if the node no longer exists, the state object fails to load
and pukes with an exception. Changing the state object to only store the
node allows callers to handle these cases. For instance, in
bootstrapcontinue we can now detect that the node doesn't exist and exit
gracefully.
The alternative is to have the state object store something like None
when the node doesn't exist, but then outside callers won't be able to
access the old node for recovery (unless we store both the node and the
ctx, but why bother).
More importantly it allows us to detect this case when doing hg histedit
--abort. Currently this situation results in both --continue and
--abort being broken and the user has to rm .hg/histedit-state to unwedge
their repo.
(description by Durham Goode)
histedit: don't allow to strip nodes which are necessary to continue histedit
During histedit we don't want user to do any operation resulting in
stripping nodes needed to continue history editing. This patch
wraps the strip function to detect such situations.