Move cmdtable and reposetup handling out of extensions.py
A new function (extensions.extensions) allows the code that is
interested in those attributes to handle them directly.
This allows some cleanups of extensions.py. Notably, we can
remove the extensions.commandtable hack.
It also makes it easier to add standard extension attributes,
like a "hgwebsetup" function or a "helptable" dict that augments
the data in help.py, etc.
#!/usr/bin/env python
__doc__ = """This does HTTP get requests given a host:port and path and returns
a subset of the headers plus the body of the result."""
import httplib, sys
headers = [h.lower() for h in sys.argv[3:]]
conn = httplib.HTTPConnection(sys.argv[1])
conn.request("GET", sys.argv[2])
response = conn.getresponse()
print response.status, response.reason
for h in headers:
if response.getheader(h, None) is not None:
print "%s: %s" % (h, response.getheader(h))
print
sys.stdout.write(response.read())