phpcs.xml

<?xml version="1.0"?>
<ruleset name="PHP_CodeSniffer">
  <description>Enforce TABS instead of SPACES for indentation.</description>

  <file>bin/clu</file>
  <file>src</file>

  <!-- At the moment, we do not define a default coding standard; we only enforce TABS instead of SPACES -->

  <!-- TABS instead of SPACES. See: https://github.com/squizlabs/PHP_CodeSniffer/issues/467 -->
  <arg name="tab-width" value="4" />
  <rule ref="Generic.WhiteSpace.DisallowSpaceIndent"/>

  <rule ref="Generic.WhiteSpace.ScopeIndent">
    <properties>
      <property name="tabIndent" value="true"/>
    </properties>
  </rule>

</ruleset>