templates: add filter to reverse list
The filter supports only lists because for lists, it’s straightforward to
implement. Reversing text doesn’t seem very useful and is hard to implement.
Reversing the bytes would break multi-bytes encodings. Reversing the code
points would break characters consisting of multiple code points. Reversing
graphemes is non-trivial without using a library not included in the standard
library.
# coding: utf8
# ext-sidedata-4.py - small extension to test (differently still) the sidedata
# logic
#
# Simulates a server for a complex sidedata exchange.
#
# Copyright 2021 Raphaël Gomès <rgomes@octobus.net>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from mercurial.revlogutils import sidedata
def reposetup(ui, repo):
repo.register_wanted_sidedata(sidedata.SD_TEST2)
repo.register_wanted_sidedata(sidedata.SD_TEST3)