Merge pull request #43 from ymyzk/black

Introduce black

pyproject.toml

@@ -5,3 +5,7 @@ requires = [
     "wheel >= 0.29.0",
 ]
 build-backend = 'setuptools.build_meta'
+
+[tool.black]
+# py39 is not supported yet
+target-version = ["py27", "py35", "py36", "py37", "py38"]

setup.cfg

@@ -54,6 +54,7 @@ tox =
 
 [options.extras_require]
 testing =
+    black; python_version>='3.6'
     flake8 >= 3, <4
     pytest >= 4.0.0, <6
     pytest-cov >= 2, <3
@@ -72,6 +73,7 @@ minversion = 3.7
 isolated_build = true
 skip_missing_interpreters = true
 envlist =
+    black
     flake8
     py{27,35,36,37,38,39}-tox{312,315,latest}
 
@@ -81,7 +83,7 @@ python =
     3.5: py35
     3.6: py36
     3.7: py37
-    3.8: py38, flake8
+    3.8: py38, black, flake8
     3.9: py39
 
 [testenv]
@@ -92,8 +94,13 @@ deps =
 extras = testing
 commands = pytest --cov=tox_gh_actions --cov-append --cov-branch {posargs:tests}
 
+[testenv:black]
+commands = black --check src/ tests/ setup.py
+extras = testing
+description = run black under {basepython}
+
 [testenv:flake8]
-commands = flake8 src/ tests/
+commands = flake8 src/ tests/ setup.py
 extras = testing
 description = run flake8 under {basepython}
 

src/tox_gh_actions/plugin.py

@@ -107,7 +107,7 @@ def get_python_version():
     if "PyPy" in sys.version:
         return "pypy" + str(sys.version_info[0])
     # Assuming running on CPython
-    return '.'.join([str(i) for i in sys.version_info[:2]])
+    return ".".join([str(i) for i in sys.version_info[:2]])
 
 
 def is_running_on_actions():
@@ -135,6 +135,7 @@ def is_env_specified(config):
 # which is licensed under MIT LICENSE
 # https://github.com/tox-dev/tox-travis/blob/0.12/LICENSE
 
+
 def parse_dict(value):
     # type: (str) -> Dict[str, str]
     """Parse a dict value from the tox config.
@@ -151,5 +152,5 @@ def parse_dict(value):
         }
     """
     lines = [line.strip() for line in value.strip().splitlines()]
-    pairs = [line.split(':', 1) for line in lines if line]
+    pairs = [line.split(":", 1) for line in lines if line]
     return dict((k.strip(), v.strip()) for k, v in pairs)