[ci] switch travis dummy cs check, to Github Actions and ECS with mar…

…kdown check

.github/workflows/coding_standard.yaml

@@ -0,0 +1,20 @@
+name: Coding Standard
+
+on:
+    pull_request: null
+
+jobs:
+    coding_standard:
+        runs-on: ubuntu-latest
+
+        steps:
+            -   uses: actions/checkout@v2
+            # see https://github.com/shivammathur/setup-php
+            -   uses: shivammathur/setup-php@v1
+                with:
+                    php-version: 7.4
+                    coverage: none
+
+            -   run: composer install --no-progress
+
+            -   run: vendor/bin/ecs check README.md --ansi

.gitignore

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+composer.lock
+/vendor

README.md

@@ -1,4 +1,4 @@
-# Clean Code PHP
+# Clean Code PHP
 
 ## Table of Contents
 

composer.json

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+{
+    "require": {
+        "php": "^7.2",
+        "symplify/easy-coding-standard": "^8.3"
+    },
+    "scripts": {
+        "check-cs": "vendor/bin/ecs check README.md",
+        "fix-cs": "vendor/bin/ecs check README.md --fix"
+    }
+}

ecs.php

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+<?php
+
+declare(strict_types=1);
+
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+use Symplify\EasyCodingStandard\Configuration\Option;
+use Symplify\EasyCodingStandard\ValueObject\Set\SetList;
+
+return static function (ContainerConfigurator $containerConfigurator): void
+{
+    $parameters = $containerConfigurator->parameters();
+    $parameters->set(Option::PATHS, [__DIR__ . '/src', __DIR__ . '/config', __DIR__ . '/ecs.php']);
+
+    $parameters->set(Option::SETS, [
+        SetList::COMMON,
+        SetList::CLEAN_CODE,
+        SetList::DEAD_CODE,
+        SetList::PSR_12,
+        SetList::PHP_70,
+        SetList::PHP_71,
+        SetList::SYMPLIFY,
+    ]);
+};