Moved from travis to github actions

Added phpcs and phpstan
Fixed minor code styling issues related to psr12

Author: MaximilianKresse

.gitattributes

@@ -0,0 +1,10 @@
+*.pdf binary
+*.php text eol=lf
+/tests export-ignore
+/.gitattributes export-ignore
+/.gitignore export-ignore
+/.github export-ignore
+/composer.lock export-ignore
+/phpunit.xml export-ignore
+/phpcs.xml export-ignore
+/phpstan.neon export-ignore

.github/workflows/code-style.yml

@@ -0,0 +1,41 @@
+name: Code Style
+on: [pull_request]
+jobs:
+  phpcs:
+    name: phpcs
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code into the workspace
+        uses: actions/checkout@v2
+
+      - name: Install php
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: "7.2"
+
+      - name: Install dependencies
+        run: composer update --dev --no-interaction --prefer-dist --no-progress --no-suggest --ansi
+
+      - name: PHPCS check
+        uses: chekalsky/phpcs-action@v1
+        with:
+          phpcs_bin_path: './vendor/bin/phpcs'
+          enable_warnings: true
+
+  phpstan:
+    name: phpstan
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code into the workspace
+        uses: actions/checkout@v2
+
+      - name: Install php
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: "7.2"
+
+      - name: Install dependencies
+        run: composer update --dev --no-interaction --prefer-dist --no-progress --no-suggest --ansi
+
+      - name: Run phpstan
+        run: php ./vendor/phpstan/phpstan/phpstan.phar analyse --no-progress

.github/workflows/tests.yml

@@ -0,0 +1,24 @@
+name: Tests
+on: [pull_request]
+jobs:
+  tests:
+    name: Run PHP Unit tests
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        php: ['7.2', '7.3', '7.4']
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Install php
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: "${{ matrix.php }}"
+
+      - name: Install dependencies
+        run: composer update --dev --no-interaction --prefer-dist --no-progress --no-suggest --ansi
+
+      - name: Run phpunit
+        run: |
+          ./vendor/bin/phpunit

.idea/inspectionProfiles/Project_Default.xml

@@ -1,5 +1,6 @@
 #!/usr/bin/env php
 <?php
+
 declare(strict_types=1);
 
 use setasign\PhpStubGenerator\PhpStubGenerator;

.idea/php.xml

@@ -21,7 +21,9 @@
 
     "require-dev": {
         "phpunit/phpunit": "^8.0",
-        "php-defer/php-defer": "^4.0"
+        "php-defer/php-defer": "^4.0",
+        "squizlabs/php_codesniffer": "^3.5",
+        "phpstan/phpstan": "^0.12"
     },
 
     "autoload": {