Migrate to Github Actions

.github/workflows/build.yml

@@ -0,0 +1,31 @@
+name: build
+on: [push, pull_request]
+env:
+  BUILD_TYPE: Release
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os:
+          - ubuntu-20.04
+          - ubuntu-18.04
+          - ubuntu-16.04
+          - macos-latest
+          - windows-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: true
+
+      - name: Configure
+        shell: bash
+        run: |
+          cmake -E make_directory $GITHUB_WORKSPACE/build
+          cmake -B $GITHUB_WORKSPACE/build -S $GITHUB_WORKSPACE \
+             -DCMAKE_BUILD_TYPE=$BUILD_TYPE
+
+      - name: Build
+        shell: bash
+        run: |
+          cmake --build $GITHUB_WORKSPACE/build -j4 --target install

.gitignore

@@ -1,4 +1,4 @@
-build*
+build*/
 install
 *~
 /doc/latex

.travis.yml

@@ -1,14 +0,0 @@
-jobs:
-  include:
-    - dist: xenial
-    - dist: bionic
-    - os: osx
-
-language: c
-
-script:
-  - mkdir build
-  - pushd build
-  - cmake .. -DCMAKE_BUILD_TYPE=Release
-  - make install
-  - popd

README.md

@@ -1,6 +1,5 @@
 # Simple Open EtherCAT Master Library
-[![Build Status](https://travis-ci.org/OpenEtherCATsociety/SOEM.svg?branch=master)](https://travis-ci.org/OpenEtherCATsociety/SOEM)
-[![Build status](https://ci.appveyor.com/api/projects/status/bqgirjsxog9k1odf?svg=true)](https://ci.appveyor.com/project/hefloryd/soem-5kq8b)
+[![Build Status](https://github.com/OpenEtherCATsociety/SOEM/workflows/build/badge.svg?branch=master)](https://github.com/OpenEtherCATsociety/SOEM/actions?workflow=build)
 
 BUILDING
 ========

appveyor.yml

@@ -1,10 +0,0 @@
-version: "{build}"
-
-install:
-  - cmd: '"C:\Program Files\Microsoft SDKs\Windows\v7.1\Bin\SetEnv.cmd" /x86'
-
-build_script:
-  - cmd: mkdir build
-  - cmd: cd build
-  - cmd: cmake .. -G "NMake Makefiles" -DCMAKE_BUILD_TYPE=Release
-  - cmd: nmake install