Add a 'benchmark' pipeline to capture the performance of 'distribution' on 'ipython'

Author: jaraco

.gitlab-ci.yml

@@ -22,6 +22,10 @@ coverage:
     paths:
       - coverage.xml
 
+benchmark:
+  script:
+    - tox -e perf
+
 diffcov:
   script:
     - tox -e py27-diffcov,py35-diffcov,py36-diffcov,py37-diffcov,py38-diffcov

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = {py27,py35,py36,py37,py38}{,-cov,-diffcov},qa,docs
+envlist = {py27,py35,py36,py37,py38}{,-cov,-diffcov},qa,docs,perf
 skip_missing_interpreters = True
 
 
@@ -60,6 +60,14 @@ extras =
     docs
 
 
+[testenv:perf]
+use_develop = False
+deps =
+    ipython
+commands =
+    python -m timeit -s 'import importlib_metadata' -- 'importlib_metadata.distribution("ipython")'
+
+
 [testenv:release]
 basepython = python3
 deps =