tox: Introduce 'build' environment

Signed-off-by: Vasilis Tsiligiannis <acinonyx@openwrt.gr>

.gitlab-ci.yml

@@ -45,9 +45,11 @@ docs:
 build:
   stage: build
   image: python:2
+  before_script:
+    - pip install tox~=3.8.0
   script:
     - rm -rf dist
-    - python setup.py sdist bdist_wheel
+    - tox -e py2-build
   artifacts:
     expire_in: 1 week
     when: always
@@ -56,9 +58,11 @@ build:
 build3:
   stage: build
   image: python:3
+  before_script:
+    - pip install tox~=3.8.0
   script:
     - rm -rf dist
-    - python setup.py sdist bdist_wheel
+    - tox -e py3-build
   artifacts:
     expire_in: 1 week
     when: always

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = {py2,py3}-{flake8,isort,yapf},pytest,py2,py3
+envlist = {py2,py3}-{flake8,isort,yapf,build},pytest,py2,py3
 
 [testenv:flake8]
 deps =
@@ -31,6 +31,11 @@ deps =
 skip_install = True
 commands = yapf -d -r .
 
+[testenv:build]
+skip_install = True
+commands =
+    python setup.py sdist bdist_wheel
+
 [testenv:deps]
 install_command = python -m pip install --no-deps {opts} {packages}
 recreate = True