tests/get-with-headers.py

update: add comments and test cases for updating across branches

Add comment to merge.py:update() showing various cases of 'hg update': to a
descendant, crossing named branches, and crossing branches within a named
branch; with no option, -c or -C; with or without uncommitted changes; and
with or without a specific revision. Add tests for all of these cases.

#!/usr/bin/env python

"""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, re

try:
    import msvcrt, os
    msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
    msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
except ImportError:
    pass

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
data = response.read()
data = re.sub('\d+ years', 'many years', data)
sys.stdout.write(data)

if 200 <= response.status <= 299:
    sys.exit(0)
sys.exit(1)