Add nextcloud code standards

Signed-off-by: Daniel Kesselberg <[email protected]>

.github/workflows/lint.yml

@@ -0,0 +1,45 @@
+name: Lint
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - stable*
+
+jobs:
+  php:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php-versions: ['7.2', '7.3', '7.4']
+    name: php${{ matrix.php-versions }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up php ${{ matrix.php-versions }}
+        uses: shivammathur/setup-php@v1
+        with:
+          php-version: ${{ matrix.php-versions }}
+          coverage: none
+      - name: Lint
+        run: "find . -name \\*.php -not -path './vendor/*' -exec php -l \"{}\" \\;"
+
+  php-cs-fixer:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php-versions: ['7.4']
+    name: php-cs check
+    steps:
+      - name: Checkout
+        uses: actions/checkout@master
+      - name: Set up php
+        uses: shivammathur/setup-php@master
+        with:
+          php-version: ${{ matrix.php-versions }}
+          coverage: none
+      - name: Install dependencies
+        run: composer i
+      - name: Run coding standards check
+        run: composer run cs:check || ( echo 'Please run `composer run cs:fix` to format your code' && exit 1 )

.gitignore

@@ -1,2 +1,3 @@
-*~
-\#*
+# PHP Coding Style
+vendor/
+.php_cs.cache

.php_cs.dist

@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+require_once './vendor/autoload.php';
+
+use Nextcloud\CodingStandard\Config;
+
+$config = new Config();
+$config
+	->getFinder()
+	->ignoreVCSIgnored(true)
+	->notPath('build')
+	->notPath('l10n')
+	->notPath('src')
+	->notPath('vendor')
+	->in(__DIR__);
+return $config;

composer.json

@@ -0,0 +1,9 @@
+{
+	"require-dev": {
+		"nextcloud/coding-standard": "^0.3.0"
+	},
+	"scripts": {
+		"cs:check": "php-cs-fixer fix --dry-run --diff",
+		"cs:fix": "php-cs-fixer fix"
+	}
+}