[py-dev] pytest-cov options

[meme dough]

Hi,

The next version of coverage will be 3.4 and looks like it will
contain a (nice) backward incompatible change.  It has include and
omit which are fnmatch patterns.  Ned also mentioned that in addition
there may be able to specify the roots of source code (but I haven't
seen any code for this one yet).

For pytest-cov I am considering refining to the options below.

  coverage reporting with distributed testing support:
    --cov=pat           include coverage for filename pattern (multi-allowed)
    --cov-omit=pat      exclude coverage for filename pattern (multi-allowed)
    --cov-report=type   type of report to generate: term, term-missing,
                        annotate, html, xml (multi-allowed)
    --cov-combine-each  for dist=each mode produce a single combined report
    --cov-config-file=path
                        config file for coverage, default: .coveragerc


This seems to work nicely, though it means you always have to specify
like "my/source/root/*" for both --cov and --cov-omit. If the other
option added then I will probably add one more so that it is in line
with coverage.

I haven't committed yet and still playing but wanted to see if anyone
had any suggestions.

:)