view contrib/convert-repo @ 22178:70383c6961b4 stable

discovery: prevent crash on unknown remote heads with old repo (issue4337)

When a remote is not capable of the `branchmap` wireproto command, we denote
incoming heads with None. This leads to a crash in the code in charge of
displaying the list of unknown remote heads.

We now properly detect this case and display a shorter message in this case.

The reason for this  `set([None])` value is now documented.

#!/usr/bin/env python
#
# Wrapper script around the convert.py hgext extension
# for foreign SCM conversion to mercurial format.
#

import sys
from mercurial import ui, fancyopts
from hgext import convert

# Options extracted from the cmdtable
func, options, help = convert.cmdtable['convert']

# An ui instance
u = ui.ui()

opts = {}
args = []
try:
    args = list(fancyopts.fancyopts(sys.argv[1:], options, opts))
    args += [None]*(3 - len(args))
    src, dest, revmapfile = args
except (fancyopts.getopt.GetoptError, ValueError), inst:
    u.warn('Usage:\n%s\n' % help)
    sys.exit(-1)

convert.convert(u, src, dest, revmapfile, **opts)