Use github actions instead of travis (#103)

Author: azmeuk

.github/workflows/tests.yaml

@@ -0,0 +1,51 @@
+---
+name: tests
+on:
+  push:
+    branches:
+      - master
+      - '*.x'
+  pull_request:
+    branches:
+      - master
+      - '*.x'
+jobs:
+  tests:
+    name: ${{ matrix.python }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python:
+          - '3.9'
+          - '3.8'
+          - '3.7'
+          - '3.6'
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python }}
+      - uses: actions/cache@v1
+        with:
+          path: ~/.cache/pip
+          key: pip|${{ hashFiles('setup.py') }}|${{ hashFiles('tox.ini') }}
+      - run: pip install tox
+      - run: tox -e py
+  style:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: '3.9'
+      - uses: actions/cache@v1
+        with:
+          path: ~/.cache/pip
+          key: pip|${{ hashFiles('setup.py') }}|${{ hashFiles('tox.ini') }}
+      - uses: actions/cache@v1
+        with:
+          path: ~/.cache/pre-commit
+          key: pre-commit|${{ hashFiles('.pre-commit-config.yaml') }}
+      - run: pip install tox
+      - run: tox -e flake8

.travis.yml

@@ -16,7 +16,6 @@ tox = ">=3.0.0"
 "flake8" = ">=0.6.1"
 tox-pyenv = ">=1.1.0"
 invoke = ">=0.23.0"
-tox-travis = "*"
 importlib_resources = "*"
 
 [requires]

Pipfile

@@ -18,7 +18,6 @@ passenv =
   CI
   PYTEST_ADDOPTS
   TERM
-  coverage: TRAVIS TRAVIS_*
 setenv =
   coverage: PYTEST_ADDOPTS=--cov --cov-report=term-missing {env:PYTEST_ADDOPTS:}
 commands = pytest {posargs:tests}