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.
# simple script to be used in hooks
# copy it to the current directory when the test starts:
#
# cp "$TESTDIR"/printenv.py .
#
# put something like this in the repo .hg/hgrc:
#
# [hooks]
# changegroup = python ../printenv.py <hookname> [exit] [output]
#
# - <hookname> is a mandatory argument (e.g. "changegroup")
# - [exit] is the exit code of the hook (default: 0)
# - [output] is the name of the output file (default: use sys.stdout)
# the file will be opened in append mode.
#
import os
import sys
exitcode = 0
out = sys.stdout
name = sys.argv[1]
if len(sys.argv) > 2:
exitcode = int(sys.argv[2])
if len(sys.argv) > 3:
out = open(sys.argv[3], "ab")
# variables with empty values may not exist on all platforms, filter
# them now for portability sake.
env = [k for k, v in os.environ.iteritems()
if k.startswith("HG_") and v]
env.sort()
# edit the variable part of the variable
url = os.environ.get("HG_URL", "")
if url.startswith("file:"):
os.environ["HG_URL"] = "file:"
elif url.startswith("remote:http"):
os.environ["HG_URL"] = "remote:http"
out.write("%s hook: " % name)
for v in env:
out.write("%s=%s " % (v, os.environ[v]))
out.write("\n")
out.close()
sys.exit(exitcode)