psalm.xml

<?xml version="1.0"?>
<psalm
    autoloader="../../../vendor/autoload.php"
    totallyTyped="false"
    findUnusedVariablesAndParams="true"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="https://getpsalm.org/schema/config"
    xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
>
    <projectFiles>
        <directory name="src"/>
        <ignoreFiles>
            <directory name="../../../platform"/> <!-- would otherwise inspect Shopware -->
        </ignoreFiles>
    </projectFiles>

    <issueHandlers>

        <!-- level 3 issues - slightly lazy code writing, but provably low false-negatives -->

        <DeprecatedMethod errorLevel="info"/>
        <DeprecatedTrait errorLevel="info"/>

        <InternalMethod errorLevel="info"/>

        <PropertyNotSetInConstructor errorLevel="info"/>
        <MissingConstructor errorLevel="info"/>
        <MissingParamType errorLevel="info"/>

        <RedundantCondition errorLevel="info"/>

        <RedundantConditionGivenDocblockType errorLevel="info"/>

        <UnresolvableInclude errorLevel="info"/>

        <InvalidStringClass errorLevel="info"/>

        <!-- level 4 issues - points to possible deficiencies in logic, higher false-positives -->

        <TypeCoercion errorLevel="info"/>
        <PossiblyFalseArgument errorLevel="info"/>
        <PossiblyFalseOperand errorLevel="info"/>
        <PossiblyNullArgument errorLevel="info"/>
        <PossiblyNullArrayAccess errorLevel="info"/>
        <PossiblyNullReference errorLevel="info"/>
        <PossiblyUndefinedVariable errorLevel="info"/>

        <!-- level 5 issues - should be avoided at mosts costs... -->

        <TypeDoesNotContainType errorLevel="info"/>
        <ImplementedReturnTypeMismatch errorLevel="info"/>

        <!-- level 6 issues - really bad things -->

        <InvalidReturnType errorLevel="info"/>
        <MoreSpecificImplementedParamType errorLevel="info"/>

    </issueHandlers>
</psalm>