localrepo: move requirements reasonability testing to own function
Just because we know how to handle each listed requirement doesn't
mean that set of requirements is reasonable.
This commit introduces an extension-wrappable function to validate
that a set of requirements makes sense.
We could combine this with ensurerequirementsrecognized(). But I think
having a line between basic membership testing and compatibility
checking is more powerful as it will help differentiate between
missing support and buggy behavior.
Differential Revision: https://phab.mercurial-scm.org/D4571
#!/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)