my-apex-rules.xml

<?xml version="1.0" encoding="UTF-8"?>
<ruleset xmlns="http://pmd.sourceforge.net/ruleset/2.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="Default ruleset used by the CodeClimate Engine for Salesforce.com Apex" xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 http://pmd.sourceforge.net/ruleset_2_0_0.xsd">
<exclude-pattern>.*/.sfdx/.*</exclude-pattern>
   <!-- start adding rules here from https://github.com/ChuckJonas/vscode-apex-pmd/blob/master/rulesets/apex_ruleset.xml -->
</ruleset>