runtests: export HGIPV6 to hint test scripts whether to use IPv6
Previously, run-tests.py only exports HGPORT, and scripts in tests do not
know if IPv6 should be used. And that breaks scripts like dumbhttp.py which
always uses IPv4.
This patch makes run-tests.py export HGIPV6, which can help test scripts
like dumbhttp.py and tinyproxy.py to decide whether to use IPv6 or not.
#!/usr/bin/env python
#
# An example hgweb CGI script, edit as necessary
# See also https://mercurial-scm.org/wiki/PublishingRepositories
# Path to repo or hgweb config to serve (see 'hg help hgweb')
config = "/path/to/repo/or/config"
# Uncomment and adjust if Mercurial is not installed system-wide
# (consult "installed modules" path from 'hg debuginstall'):
#import sys; sys.path.insert(0, "/path/to/python/lib")
# Uncomment to send python tracebacks to the browser if an error occurs:
#import cgitb; cgitb.enable()
from mercurial import demandimport; demandimport.enable()
from mercurial.hgweb import hgweb, wsgicgi
application = hgweb(config)
wsgicgi.launch(application)