Upstream mercurial has yet again (sigh ...) made incompatible internal API changes that have broken the openjdk trees extension.

With hg 5.0 I see:

 $ (REPO="$HOME/ws/code-tools/trees"; for name in 'tpull' '^tpull'; do echo $name ---; /usr/bin/hg -R "$REPO" --config extensions.trees="$REPO/trees.py" $name -u; done)
tpull ---
hg: unknown command 'tpull'
(did you mean one of ^tpull, pull?)
^tpull ---
[/usr/local/google/home/martinrb/ws/code-tools/trees]:
pulling from https://hg.openjdk.java.net/code-tools/trees
searching for changes
no changes found


Looks like this commit:


changeset: 40295:fa88170c10bb
user: Rodrigo Damazio <rdamazio@google.com>
date: 2018-10-12 18:49 +0200
help: adding a proper declaration for shortlist/basic commands (API)

We previously used the '^' prefix to indicate that a command
should be shown on the short list (shown for just "hg"), but
that's a horrible hack, so I'm removing it.

Differential Revision: https://phab.mercurial-scm.org/D5069


Fix should be easy - remove the '^' from trees.py
 $ grep '@command.*\^' ~/ws/code-tools/trees/trees.py
@command("^tclone", norepo=True)
@command('^tlog|thistory')
@command('^tpull')
@command('^tpush')
@command('^tstatus')
@command('^tupdate')