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.
from mercurial.thirdparty import attr
from mercurial import (
cmdutil,
commands,
extensions,
logcmdutil,
revsetlang,
smartset,
)
from mercurial.utils import stringutil
def logrevset(repo, wopts):
revs = logcmdutil._initialrevs(repo, wopts)
if not revs:
return None
match, pats, slowpath = logcmdutil._makematcher(repo, revs, wopts)
wopts = attr.evolve(wopts, pats=pats)
return logcmdutil._makerevset(repo, wopts, slowpath)
def uisetup(ui):
def printrevset(orig, repo, wopts):
revs, filematcher = orig(repo, wopts)
if wopts.opts.get(b'print_revset'):
expr = logrevset(repo, wopts)
if expr:
tree = revsetlang.parse(expr)
tree = revsetlang.analyze(tree)
else:
tree = []
ui = repo.ui
ui.write(b'%s\n' % stringutil.pprint(wopts.opts.get(b'rev', [])))
ui.write(revsetlang.prettyformat(tree) + b'\n')
ui.write(stringutil.prettyrepr(revs) + b'\n')
revs = smartset.baseset() # display no revisions
return revs, filematcher
extensions.wrapfunction(logcmdutil, 'getrevs', printrevset)
aliases, entry = cmdutil.findcmd(b'log', commands.table)
entry[1].append(
(
b'',
b'print-revset',
False,
b'print generated revset and exit (DEPRECATED)',
)
)