let run-tests run optional code coverage tests. to enable, set env var TEST_COVERAGE to non-empty string. run-tests will print report after running. after coverage run, file tests/.coverage will contain coverage data. use tests/coverage.py to get more info, like annotated source code.

syntax: glob

*.elc
*.orig
*.rej
*~
*.so
*.pyc
*.swp
*.prof
tests/.coverage*
tests/*.err
build
dist
doc/*.[0-9]
doc/*.[0-9].gendoc.txt
doc/*.[0-9].{x,ht}ml
MANIFEST
patches
mercurial/__version__.py

syntax: regexp
^\.pc/