bookmark: introduce a 'bookmarks' part
This part can carry and apply bookmarks information. We start with adding the
core behavior of the part. In its current form, the part is only suitable for
push since it plain update the bookmark without consideration for the local
state. Support of the behavior needed for pulling will be added in later
changesets.
push: include a 'check:bookmarks' part when possible
Before updating the actual bookmark update, we can start with updating the way
we check for push race. Checking bookmarks state earlier is useful even if we
still use pushkey. Aborting before the changegroup is added can save a lot of
time.
bookmark: add a 'check:bookmarks' bundle2 part
This part checks that bookmarks are still at the node they are expected to be.
This allows a pushing client to detect push race where the repository was
updated between the time it discovered the server state and the time it managed
to finish its push.
Such checking already exists when pushing bookmark through pushkey. This new
part can be inserted at the beginning of the bundle, triggering abort earlier.
In addition, we would like to move away from pushey to push bookmark. A step
useful to solve
issue5165.
bookmark: add methods to binary encode and decode bookmark values
Coming new bundle2 parts related to bookmark will use a binary encoding. It
encodes a series of '(bookmark, node)' pairs. Bookmark name has a high enough
size limit to not be affected by
issue5165. (64K length, we are well covered)
tests: remove {a..h} bashism from remotenames
I'm not bothering with a check-code test because this is a weird
construct that I didn't even know existed before it was breaking the
BSD build, and it also appears to fail if /bin/sh is dash like it is
on our Linux builder.
Differential Revision: https://phab.mercurial-scm.org/D1605
hgweb: move common vertex code to Graph.prototype
Just to give some context to the return values: vertex() needs to return two
HTML elements as strings, <li> to be used as a background and a <li> to be
shown in foreground. The latter was made obsolete recently when changesets
started to be rendered server-side, but background elements are still useful
for now.
hgweb: create Graph methods using a prototype
This way it's possible to call the original methods even if they were
overridden.