Replace TravisCI by Github Actions

.github/workflows/tests.yml

@@ -0,0 +1,39 @@
+name: Tests
+
+on: push
+
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php: ['5.6', '7.0', '7.1', '7.2', '7.3', '7.4']
+    name: PHP ${{ matrix.php }}
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: Install PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ matrix.php }}
+        extensions: intl
+
+    - name: Cache Composer packages
+      id: composer-cache
+      uses: actions/cache@v2
+      with:
+        path: vendor
+        key: ${{ matrix.php }}-composer
+
+    - name: Composer install
+      if: steps.composer-cache.outputs.cache-hit != 'true'
+      run: composer install -n
+
+    - name: Display versions
+      run: |
+        php -v
+        php -i
+        vendor/bin/phpunit -v
+
+    - run: vendor/bin/phpunit

.travis.yml

@@ -1,12 +0,0 @@
-language: php
-php:
-  - 5.6
-  - 7.0
-  - 7.1
-  - 7.2
-  - 7.3
-  - 7.4
-install:
-  - composer install -n
-script:
-  - vendor/bin/phpunit

README.md

@@ -3,7 +3,7 @@
 Lightweight and fast implementation of recurrence rules for PHP (`RRULE` from RFC 5545), to easily calculate recurring/repeating dates and events (such as in a calendar).
 This library started as a port of [python-dateutil](https://labix.org/python-dateutil).
 
-[![Build Status](https://travis-ci.org/rlanvin/php-rrule.svg?branch=master)](https://travis-ci.org/rlanvin/php-rrule)
+[![Build status](https://github.com/rlanvin/php-rrule/workflows/Tests/badge.svg)](https://github.com/rlanvin/php-rrule/actions)
 [![Latest Stable Version](https://poser.pugx.org/rlanvin/php-rrule/v/stable)](https://packagist.org/packages/rlanvin/php-rrule)
 [![Total Downloads](https://poser.pugx.org/rlanvin/php-rrule/downloads)](https://packagist.org/packages/rlanvin/php-rrule)
 

composer.json

@@ -22,7 +22,7 @@
         }
     },
     "require-dev": {
-        "phpunit/phpunit": "^4.8|^5.5|^6.5",
+        "phpunit/phpunit": "^5.7|^6.5",
         "phpmd/phpmd" : "@stable"
     }
 }