ruleset.xml

<?xml version="1.0" encoding="UTF-8"?>

<!-- https://github.com/squizlabs/PHP_CodeSniffer/wiki/Annotated-Ruleset -->
<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="../../../vendor/squizlabs/php_codesniffer/phpcs.xsd"
         name="AcquiaDrupalStrict"
>

  <description>Acquia's strict Drupal coding standards.</description>

  <!-- Drupal sniffs -->
  <rule ref="Drupal">
    <exclude name="Drupal.Files.TxtFileLineLength.TooLong"/>
  </rule>
  <!-- Relax rules for automated tests -->
  <rule ref="Drupal.Arrays.Array.LongLineDeclaration">
    <exclude-pattern>tests/*</exclude-pattern>
  </rule>
  <rule ref="Drupal.Commenting.ClassComment.Missing">
    <exclude-pattern>tests/*</exclude-pattern>
  </rule>
  <rule ref="Drupal.Commenting.DocComment.MissingShort">
    <exclude-pattern>tests/*</exclude-pattern>
  </rule>
  <rule ref="Drupal.Commenting.FunctionComment.Missing">
    <exclude-pattern>tests/*</exclude-pattern>
  </rule>
  <rule ref="Drupal.Commenting.VariableComment.Missing">
    <exclude-pattern>tests/*</exclude-pattern>
  </rule>

  <!-- Drupal Practice sniffs -->
  <rule ref="DrupalPractice"/>

  <!-- Acquia PHP sniffs -->
  <rule ref="AcquiaPHP"/>

  <!-- Drupal should type hint hooks -->
  <!-- @see https://www.drupal.org/project/drupal/issues/3229216 -->
  <rule ref="SlevomatCodingStandard.TypeHints.ReturnTypeHint.MissingTraversableTypeHintSpecification">
    <exclude-pattern>*/modules/custom/*/*\.(module|install)$</exclude-pattern>
  </rule>
  <rule ref="SlevomatCodingStandard.TypeHints.ReturnTypeHint.MissingAnyTypeHint">
    <exclude-pattern>*/modules/custom/*/*\.(module|install)$</exclude-pattern>
  </rule>
  <rule ref="SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingAnyTypeHint">
    <exclude-pattern>*/modules/custom/*/*\.(module|install)$</exclude-pattern>
  </rule>
  <rule ref="SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingTraversableTypeHintSpecification">
    <exclude-pattern>*/modules/custom/*/*\.(module|install)$</exclude-pattern>
  </rule>

</ruleset>