setup: add a test for running setup.py `python3 -m pip install hg-evolve==9.2.0` currently fails, despite 9.2.0 being the first beta py3 release, because of unicode issues with the version number. `setup.py install` is a proxy test for pip install since it also suffers from similar, however the test currently fails due to running setup.py from a different directory to the one it is in. Also add a test for `hg version -v` with evolve enabled since a naive first solution for the pip issue was to just change `__version__` to a `u''` string, but that busts version display in `version -v`, which isn't currently picked up by tests.

import sys

formatted_args = []

UNSAFE_CHARACTERS = [" ", "!", "\"", "#", "$", "&", "'", "(", ")", "*", ",", ";", "<", ">", "?", "[", "\\", "]", "^", "`", "{", "|", "}", ":", "~", "/"]


def find_unsafe(arg):
    for unsafe in UNSAFE_CHARACTERS:
        if unsafe in arg:
            return True

    return False


for arg in sys.argv[1:]:
    if find_unsafe(arg):
        formatted_args.append('"%s"' % arg)
    else:
        formatted_args.append(arg)

print("$ " + " ".join(formatted_args))