Enhancement: Install root dependencies using GitHub Actions

.github/workflows/continuous-integration.yml

@@ -0,0 +1,42 @@
+# https://help.github.com/en/categories/automating-your-workflow-with-github-actions
+
+name: "Continuous Integration"
+
+on:
+  - "pull_request"
+  - "push"
+
+jobs:
+  continuous-integratio:
+    name: "Continuous Integration"
+
+    runs-on: "ubuntu-latest"
+
+    strategy:
+      matrix:
+        php-version:
+          - "7.2"
+          - "7.3"
+
+        dependencies:
+          - "highest"
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2.0.0"
+
+      - name: "Install PHP with extensions"
+        uses: "shivammathur/setup-php@1.8.2"
+        with:
+          coverage: "none"
+          php-version: "${{ matrix.php-version }}"
+
+      - name: "Cache dependencies installed with composer"
+        uses: "actions/cache@v1.0.3"
+        with:
+          path: "~/.composer/cache"
+          key: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}"
+          restore-keys: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-"
+
+      - name: "Install dependencies with composer in root directory"
+        run: "composer install --no-interaction --no-progress --no-suggest"

README.md

@@ -3,6 +3,7 @@
 [![Latest Unstable Version](https://poser.pugx.org/thecodingmachine/safe/v/unstable.svg)](https://packagist.org/packages/thecodingmachine/safe)
 [![License](https://poser.pugx.org/thecodingmachine/safe/license.svg)](https://packagist.org/packages/thecodingmachine/safe)
 [![Build Status](https://travis-ci.org/thecodingmachine/safe.svg?branch=master)](https://travis-ci.org/thecodingmachine/safe)
+[![Continuous Integration](https://github.com/thecodingmachine/safe/workflows/Continuous%20Integration/badge.svg)](https://github.com/thecodingmachine/safe/actions)
 [![Coverage Status](https://coveralls.io/repos/thecodingmachine/safe/badge.svg?branch=master&service=github)](https://coveralls.io/github/thecodingmachine/safe?branch=master)
 
 Safe PHP
@@ -59,7 +60,7 @@ $content = file_get_contents('foobar.json');
 $foobar = json_decode($content);
 ```
 
-All PHP functions that can return `false` on error are part of Safe. 
+All PHP functions that can return `false` on error are part of Safe.
 In addition, Safe also provide 2 'Safe' classes: `Safe\DateTime` and `Safe\DateTimeImmutable` whose methods will throw exceptions instead of returning false.
 
 ## PHPStan integration
@@ -159,8 +160,8 @@ try {
 
 Safe is loading 1000+ functions from ~85 files on each request. Yet, the performance impact of this loading is quite low.
 
-In case you worry, using Safe will "cost" you ~700µs on each request. The [performance section](performance/README.md) 
-contains more information regarding the way we tested the performance impact of Safe. 
+In case you worry, using Safe will "cost" you ~700µs on each request. The [performance section](performance/README.md)
+contains more information regarding the way we tested the performance impact of Safe.
 
 ## Learn more