diff: add --inverse option
Most of the time, one can reverse a diff by swapping the revisions passed with
-r but it happens that if you use the global -R, and diff against the tip of
the current repo, you can't swap the revisions. One use-case for that is
reviewing changes from a bundle before unbundling. One could also pipe the
output of `hg diff` to a command line filter that reverses the diff, but that
would remove the benefit from color diffs. Therefore, having an option in
`hg diff` to reverse a diff is a good thing.
The option flag selection was tricky. GNU patch uses -R/--reverse but -R is
already used as a global option and --reverse would make --rev ambiguous.
# Copyright 2006, 2007 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.
'''share a common history between several working directories'''
from mercurial.i18n import _
from mercurial import hg, commands
def share(ui, source, dest=None, noupdate=False):
"""create a new shared repository (experimental)
Initialize a new repository and working directory that shares its
history with another repository.
NOTE: actions that change history such as rollback or moving the
source may confuse sharers.
"""
return hg.share(ui, source, dest, not noupdate)
cmdtable = {
"share":
(share,
[('U', 'noupdate', None, _('do not create a working copy'))],
_('[-U] SOURCE [DEST]')),
}
commands.norepo += " share"