Move tox configuration into setup.cfg to reduce project repo cluttering

Author: althonos

setup.cfg

@@ -1,5 +1,4 @@
-[bdist_wheel]
-universal = 1
+# --- Project configuration -------------------------------------------------
 
 [metadata]
 version = attr: fs._version.__version__
@@ -60,6 +59,11 @@ exclude = tests
 [options.package_data]
 fs = py.typed
 
+[bdist_wheel]
+universal = 1
+
+# --- Individual linter configuration ---------------------------------------
+
 [pydocstyle]
 inherit = false
 ignore = D102,D105,D200,D203,D213,D406,D407
@@ -83,6 +87,24 @@ warn_return_any = false
 [mypy-fs.test]
 disallow_untyped_defs = false
 
+[flake8]
+extend-ignore = E203,E402,W503
+max-line-length = 88
+per-file-ignores =
+    fs/__init__.py:F401
+    fs/*/__init__.py:F401
+    tests/*:E501
+    fs/opener/*:F811
+    fs/_fscompat.py:F401
+
+[isort]
+default_section = THIRD_PARTY
+known_first_party = fs
+known_standard_library = typing
+line_length = 88
+
+# --- Test and coverage configuration ------------------------------------------
+
 [coverage:run]
 branch = true
 omit = fs/test.py
@@ -102,18 +124,63 @@ exclude_lines =
 markers =
     slow: marks tests as slow (deselect with '-m "not slow"')
 
-[flake8]
-extend-ignore = E203,E402,W503
-max-line-length = 88
-per-file-ignores =
-    fs/__init__.py:F401
-    fs/*/__init__.py:F401
-    tests/*:E501
-    fs/opener/*:F811
-    fs/_fscompat.py:F401
+# --- Tox automation configuration ---------------------------------------------
 
-[isort]
-default_section = THIRD_PARTY
-known_first_party = fs
-known_standard_library = typing
-line_length = 88
+[tox:tox]
+envlist = py{27,34}{,-scandir}, py{35,36,37,38,39}, pypy{27,36,37}, typecheck, codestyle, docstyle, codeformat
+sitepackages = false
+skip_missing_interpreters = true
+requires =
+  setuptools >=38.3.0
+
+[testenv]
+commands = pytest --cov={toxinidir}/fs {posargs} {toxinidir}/tests
+deps =
+  -rtests/requirements.txt
+  pytest-cov~=2.11
+  coverage~=5.0
+  py{36,37,38,39}: pytest~=6.2
+  py{27,34}: pytest~=4.6
+  py{36,37,38,39}: pytest-randomly~=3.5
+  py{27,34}: pytest-randomly~=1.2
+  scandir: .[scandir]
+  !scandir: .
+
+[testenv:typecheck]
+commands = mypy --config-file {toxinidir}/setup.cfg {toxinidir}/fs
+deps =
+  .
+  mypy==0.800
+
+[testenv:codestyle]
+commands = flake8 --config={toxinidir}/setup.cfg {toxinidir}/fs {toxinidir}/tests
+deps =
+  flake8==3.7.9
+  #flake8-builtins==1.5.3
+  flake8-bugbear==19.8.0
+  flake8-comprehensions==3.1.4
+  flake8-mutable==1.2.0
+  flake8-tuple==0.4.0
+
+[testenv:codeformat]
+commands = black --check {toxinidir}/fs
+deps =
+  black==20.8b1
+
+[testenv:docstyle]
+commands = pydocstyle --config={toxinidir}/setup.cfg {toxinidir}/fs
+deps =
+  pydocstyle==5.1.1
+
+[gh-actions]
+python =
+    2.7: py27, py27-scandir
+    3.4: py34, py34-scandir
+    3.5: py35
+    3.6: py36
+    3.7: py37
+    3.8: py38
+    3.9: py39
+    pypy-2.7: pypy27
+    pypy-3.6: pypy36
+    pypy-3.7: pypy37