manifest: add dirs() to manifestdict
Manifests should have a method of accessing its own dirs, not just the
context that references the manifest. This makes it easier for other
optimized versions of manifests to compute their own dirs in the most efficient
way.
formatter: convert None to json null
It will be used by "annotate" command to represent the workingctx revision.
localrepo: extend "changeid in repo" to return True for workingctx revision
This is necessary to implement "wc" symbol for workingctx, that will be used
as follows:
$ hg annotate -r wc FILE
In principle, "rev in repo" should be True if "repo[rev]" can return a context
object. But when it was implemented by
ea3acaae25bb, lookup() had a long logic
to map all sorts of changeids to nodes, and "None in repo" did crash because
lookup() could not accept None. So I assume that the case of changeid=None was
not considered.
Now "None in repo" doesn't crash, it should be True for workingctx revision.
Behavior of "changeid in repo":
revision "null" existing rev None (workingctx)
---------- ------ ------------ -----------------
original* True True TypeError
current True True False
this patch True True True
(*original:
ea3acaae25bb)