tests/heredoctest.py

tests: mark tests that fail when using chg as #require no-chg

As far as I can tell, most of these failures are due to using $HGPORT, which it
seems chg might be using itself? I don't know enough to debug these failures to
fix them properly.

Differential Revision: https://phab.mercurial-scm.org/D3562

from __future__ import absolute_import, print_function

import sys

globalvars = {}
lines = sys.stdin.readlines()
while lines:
    l = lines.pop(0)
    if l.startswith('SALT'):
        print(l[:-1])
    elif l.startswith('>>> '):
        snippet = l[4:]
        while lines and lines[0].startswith('... '):
            l = lines.pop(0)
            snippet += l[4:]
        c = compile(snippet, '<heredoc>', 'single')
        try:
            exec(c, globalvars)
        except Exception as inst:
            print(repr(inst))