view tests/heredoctest.py @ 37300:2f859ad7ed8c

stringutil: add function to pretty print an object

This is inspired by the pprint() module/function (which we can't
use because the output is different on Python 2 and 3 - namely the
use of b'' literals).

We hook it up to `hg debugwireproto` for printing the response to
a wire protocol command.

This foreshadows future peer work, which will support decoding
CBOR responses into rich data structures.

Differential Revision: https://phab.mercurial-scm.org/D2987

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))