topic: update the changelog with the 's#' alias change

topic: update other occurrence of 't0' is 's0' in the code

topic: mention t0 in topic documentation

stack: display 's#' instead of 't#' and 'b#' If we want people to use it, we should display it.

stack: clarify s# error message in case of branch A branch might have a lots of changeset, with all of them public.

alias: allow reference through 's#' We keep the 't#' option, but we hope to be able to deprecate it at some point. We move to 's#' because it refers to `stack` a more generic concept. than topic. In addition, this allows to phase out 'b#' that collide with normal hex-node.

topic-revset: get the list of revset through the official localrepo API This is simpler and faster. In addition we tighter the logic to be used in case of empty topic. We do not need to fall back to revision search.

topic-revset: strictly read string Making a clear distinction between string and symbol passed to topic is important when it comes to empty topic. Filtering an empty topic name is harmless. Searching a non existent revision is not.

test: search for empty topic as a string The reduce the ambiguity in the test to help with the next change.

topic: handle ambiguous arguments to topic() revset These arguments can be interpreted as either string or a revset. The decision is made based on existence of topic with such a name. This matches the behavior of branch() revset. The code needs to know all topics that ever existed in the repo, because some commands report "disappearance" of topics after certain operations, using this revset (e.g. via stack.stack or repo.revs).

topic: handle revsets passed to topic() revset This handles cases when the argument can't be interpreted as a string at all.

topic: handle string argument to topic() revset earlier

topic: prepare to handle non-string arguments to topic() revset

topic: return result early if there are no arguments to topic() revset

obshashrange: enable by default We have been testing this in various placed and specific stress test have been performed. It is time to enable this by default

obshashrange: issue a warning if the cache takes a long time to load The -current- implementation of the obshashrange cache can get slow. This will be fixed eventually, in the mean time we inform people on large repository of what have been going on. Since we are about to enable obshashrange by default, we need to make sure nobody will have an (unexplained) bad surprise.

pick: fix last references of grab in code Grab was still referenced on comments and variable names.

pick: replace `hg grab` invocation in test with `hg pick`

pick: replace "grabstate" with "pickstate"

pick: use "pick" as operation name in obsolescence markers

pick: use "pick" instead of "grab" for various internal API This should not much user visible impact but this is cleaner.

pick: update command output to mention pick instead of grab

pick: rename the grab command to pick Grab is ambiguous with "graft", "pick" match the associated verb in histedit. The "grab" name is preserved as an alias for now.

grab: prefix function with 'cmd' as for the other command in the extension

readme: document the purpose of the evolve extension Another place for the explanation to live.

prune: replace --biject with --pair People have been complaining about `--biject` being to obscure for a while. A recent discussion with Pulkit Goyal and Dan Villiom Podlaski Christiansen produce some new concrete proposal that we liked. We eventually settle on using `--pair`. The `--biject` flag will be kept as an alias for a while.

topic: check that repo.currenttopic is set before using it as an argument repo.currenttopic can be an empty string, which means there's no current topic set. This fact can be used to short-circuit some checks. Also, this avoids passing an empty string as an argument to topic() revset.

test: update output after merge message change CORE-TEST-OUTPUT-UPDATE: f785073f792c CORE-TEST-OUTPUT-UPDATE: a3fd84f4fb38

readme: document the tag we use on output change

branching: merge with stable