view mercurial/strutil.py @ 16532:9eba72cdde34 stable

wireprotocol: use visibleheads as reference while unbundling (issue 3303)

The `repo` object here is *always* local. Using `repo.heads()` ensure we will
reject push if any secret changeset exists.

During discovery, `visibleheads` were sent to the peer. So we can only expect it
to send us `visibleheads` back. If any secret changeset exists::

    visibleheads != repo.heads()

This fix server side part of issue 3303 when pushing over the wire.

# strutil.py - string utilities for Mercurial
#
# Copyright 2006 Vadim Gelfer <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

def findall(haystack, needle, start=0, end=None):
    if end is None:
        end = len(haystack)
    if end < 0:
        end += len(haystack)
    if start < 0:
        start += len(haystack)
    while start < end:
        c = haystack.find(needle, start, end)
        if c == -1:
            break
        yield c
        start = c + 1

def rfindall(haystack, needle, start=0, end=None):
    if end is None:
        end = len(haystack)
    if end < 0:
        end += len(haystack)
    if start < 0:
        start += len(haystack)
    while end >= 0:
        c = haystack.rfind(needle, start, end)
        if c == -1:
            break
        yield c
        end = c - 1