tests/test-doctest.py

debugbuilddag: use memctx for speed

This drops the options to run arbitrary shell commands within
commits and the option to create a file that gets appended to
in every revision. It now supports to not write file data at
all, which is very fast for generating a pure 00changelog.i
(useful for discovery tests, for instance).

Timings for 1000 linear nodes:
 * Old `hg debugbuilddag -o '+1000'` took 4.5 secs.
 * New `hg debugbuilddag -o '+1000'` takes 2 secs.
 * New `hg debugbuilddag '+1000'` takes 0.8 secs.

(The last one creates only 00changelog.i).

# this is hack to make sure no escape characters are inserted into the output
import os
if 'TERM' in os.environ:
    del os.environ['TERM']
import doctest

import mercurial.changelog
doctest.testmod(mercurial.changelog)

import mercurial.dagparser
doctest.testmod(mercurial.dagparser, optionflags=doctest.NORMALIZE_WHITESPACE)

import mercurial.match
doctest.testmod(mercurial.match)

import mercurial.store
doctest.testmod(mercurial.store)

import mercurial.url
doctest.testmod(mercurial.url)

import mercurial.util
doctest.testmod(mercurial.util)

import mercurial.encoding
doctest.testmod(mercurial.encoding)

import mercurial.hgweb.hgwebdir_mod
doctest.testmod(mercurial.hgweb.hgwebdir_mod)

import hgext.convert.cvsps
doctest.testmod(hgext.convert.cvsps)