messages: replace some instances of "folder" by "directory" I'm pretty sure this is our preferred term. Differential Revision: https://phab.mercurial-scm.org/D6222

match: fix re2 compability broken in 2e2699af5649 When using re2, we call test_match() instead of match() on the compiled regex object. While match() returns a matcher object or None, test_match() returns True or False. So since 2e2699af5649 running test on a machine with a re2 install fails in many places. Instead we make the code a bit more general and everything goes back to normal.

py3: add b'' prefixes to new doctests in match.py # skip-blame as just b'' prefixes Differential Revision: https://phab.mercurial-scm.org/D6221

py3: add one new passing test found by buildbot Differential Revision: https://phab.mercurial-scm.org/D6220

cext: cast s# arguments of Py_BuildValue() to Py_ssize_t The doc doesn't state that "s#" of Py_BuildValue() is controlled by PY_SSIZE_T_CLEAN (unlike the one for PyArg_ParseTuple()), but actually it's switched to Py_ssize_t. https://docs.python.org/2/c-api/arg.html#c.Py_BuildValue https://github.com/python/cpython/blob/2.7/Python/modsupport.c#L432 Follow up for b01bbb8ff1f2 and 896b19d12c08.

remotefilelog: correctly reject wdir filenodes This fixes `hg grep -r 'wdir()'` when remotefilelog is enabled and the working directory contains uncommitted modifications. Differential Revision: https://phab.mercurial-scm.org/D6217

remotefilelog: add tests of `hg grep -r 'wdir()'` This demonstrates how remotefilelog breaks grepping dirtied working directories. A future change will introduce a fix. Differential Revision: https://phab.mercurial-scm.org/D6216