tests/test-non-interactive-wsgi

Don't try to determine interactivity if ui() called with interactive=False.

WSGI applications are not supposed to refer to sys.stdin. In ed6df6b1c29a,
hgweb and hgwebdir were fixed to pass interactive=False to their ui()'s, but
sys.stdin.isatty() was still called by the ui objects. This change makes sure
only the ui.fixconfig() method will call ui.isatty() (by making the
ui._readline() method, which is currently only called from ui.prompt(),
private). ui.fixconfig() is changed to let config files override the initial
interactivity setting, but not check isatty() if interactive=False was
specified in the creation of the ui.

#!/bin/sh

mkdir repo
cd repo
hg init
echo foo > bar
hg add bar
hg commit -m "test" -d "0 0"
hg tip

cat > request.py <<EOF
from mercurial import dispatch
from mercurial.hgweb.hgweb_mod import hgweb
from mercurial.hgweb.request import _wsgirequest
from mercurial.ui import ui
from mercurial import hg
from StringIO import StringIO
import sys

class FileLike(object):
    def __init__(self, real):
        self.real = real
    def fileno(self):
        print >> sys.__stdout__, 'FILENO'
        return self.real.fileno()
    def read(self):
        print >> sys.__stdout__, 'READ'
        return self.real.read()
    def readline(self):
        print >> sys.__stdout__, 'READLINE'
        return self.real.readline()
    def isatty(self):
        print >> sys.__stdout__, 'ISATTY'
        return False

sys.stdin = FileLike(sys.stdin)
errors = StringIO()
input = StringIO()
output = StringIO()

def startrsp(headers, data):
	print '---- HEADERS'
	print headers
	print '---- DATA'
	print data
	return output.write

env = {
	'wsgi.version': (1, 0),
	'wsgi.url_scheme': 'http',
	'wsgi.errors': errors,
	'wsgi.input': input,
	'wsgi.multithread': False,
	'wsgi.multiprocess': False,
	'wsgi.run_once': False,
	'REQUEST_METHOD': 'GET',
	'SCRIPT_NAME': '',
	'PATH_INFO': '',
	'QUERY_STRING': '',
	'SERVER_NAME': '127.0.0.1',
	'SERVER_PORT': '20059',
	'SERVER_PROTOCOL': 'HTTP/1.0'
}

_wsgirequest(hgweb('.'), env, startrsp)
print '---- ERRORS'
print errors.getvalue()
EOF

python request.py