view mercurial/stack.py @ 46720:66fb04552122

ui: pass a `ui` object to `paths.getpath`

I want to introduce more path's suboption and make it possible to use default
value for them.  Processing theses sub-options might result in warnings. We
need a `ui` object to issue such warnings.

To make things simpler, we add an helper method on the `ui` object.

Differential Revision: https://phab.mercurial-scm.org/D10162

# stack.py - Mercurial functions for stack definition
#
#  Copyright Matt Mackall <[e-mail]> and other
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

from __future__ import absolute_import


def getstack(repo, rev=None):
    """return a sorted smartrev of the stack containing either rev if it is
    not None or the current working directory parent.

    The stack will always contain all drafts changesets which are ancestors to
    the revision and are not merges.
    """
    if rev is None:
        rev = b'.'

    revspec = b'only(%s) and not public() and not ::merge()'
    revisions = repo.revs(revspec, rev)
    revisions.sort()
    return revisions