speed up release testing, if cpus > 2

Author: mr-c

Makefile

@@ -26,7 +26,8 @@ MODULE=cwltool
 # `SHELL=bash` doesn't work for some, so don't use BASH-isms like
 # `[[` conditional expressions.
 PYSOURCES=$(wildcard ${MODULE}/**.py tests/*.py) setup.py
-DEVPKGS=pycodestyle diff_cover autopep8 pylint coverage pydocstyle flake8 pytest isort 
+DEVPKGS=pycodestyle diff_cover autopep8 pylint coverage pydocstyle flake8 \
+	pytest pytest-xdist isort
 DEBDEVPKGS=pep8 python-autopep8 pylint python-coverage pydocstyle sloccount \
 	   python-flake8 python-mock shellcheck
 VERSION=1.0.$(shell date +%Y%m%d%H%M%S --utc --date=`git log --first-parent \
@@ -142,7 +143,7 @@ diff-cover.html:  coverage.xml
 
 ## test        : run the ${MODULE} test suite
 test: $(pysources)
-	python setup.py test
+	python setup.py test --addopt "-n$(shell expr $(nproc) / 2)"
 
 ## testcov     : run the ${MODULE} test suite and collect coverage
 testcov: $(pysources)

release-test.sh

@@ -7,7 +7,17 @@ package=cwltool
 module=cwltool
 slug=${TRAVIS_PULL_REQUEST_SLUG:=common-workflow-language/cwltool}
 repo=https://github.com/${slug}.git
-run_tests="bin/py.test --ignore ${module}/schemas/ --pyarg cwltool"
+parallel=""
+if [[ "${OSTYPE}" == linux* ]]
+then
+	parallel=-n$(( $(nproc) / 2 ))
+fi
+if [[ "${OSTYPE}" == darwin* ]]
+then
+	parallel=-n$(( $(sysctl -n hw.physicalcpu) / 2 ))
+fi
+
+run_tests="bin/py.test --ignore ${module}/schemas/ --pyarg cwltool ${parallel}"
 pipver=7.0.2 # minimum required version of pip
 setuptoolsver=24.2.0 # required to generate correct metadata for
                      # python_requires