ci: add GHA

- drops usage of Travis CI

.github/workflows/ci.yml

@@ -0,0 +1,36 @@
+---
+name: ci
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+  workflow_dispatch:
+  schedule:
+  - cron: '47 4 * * 4'  # weekly on thursday morning
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version:
+        - '2.7'
+        - '3.4'
+        - '3.5'
+        - '3.7'
+        - '3.9'
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade setuptools tox
+    - name: Test
+      working-directory: library
+      run: |
+        tox -e py

.travis.yml

@@ -1,23 +0,0 @@
----
-os: linux
-language: python
-cache: pip
-
-git:
-  submodules: true
-
-jobs:
-  include:
-  - python: "2.7"
-    env: TOXENV=py27
-  - python: "3.7"
-    env: TOXENV=py37
-  - python: "3.9"
-    env: TOXENV=py39
-
-install:
-- pip install --ignore-installed --upgrade setuptools pip tox
-
-script:
-- cd library
-- tox -vv

README.md

@@ -1,6 +1,6 @@
 # BME680
 
-[![Build Status](https://travis-ci.com/cmur2/python-bme680.svg?branch=master)](https://travis-ci.com/cmur2/python-bme680)
+![ci](https://github.com/cmur2/python-bme680/workflows/ci/badge.svg?branch=master)
 
 https://shop.pimoroni.com/products/bme680
 

library/tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{27,35,37,38,39},qa
+envlist = py{27,34,35,37,38,39},qa
 skip_missing_interpreters = True
 
 [testenv]