psalm.xml

<?xml version="1.0"?>
<psalm
    resolveFromConfigFile="true"
    findUnusedVariablesAndParams="true"
    findUnusedBaselineEntry="false"
    findUnusedCode="false"
    usePhpDocMethodsWithoutMagicCall="true"
    allowStringToStandInForClass="false"
    memoizeMethodCallResults="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="./vendor"/>
            <file name="ecs.php"/>
            <file name="src/DependencyInjection/Configuration.php"/>
        </ignoreFiles>
    </projectFiles>

    <issueHandlers>
        <MoreSpecificImplementedParamType errorLevel="suppress"/>
        <RiskyTruthyFalsyComparison errorLevel="suppress"/>
        <UnnecessaryVarAnnotation errorLevel="suppress"/> <!-- PHPStorm doesn't understand to generics annotations yet -->

        <UnusedFunctionCall>
            <errorLevel type="suppress">
                <referencedFunction name="array_map"/>
            </errorLevel>
        </UnusedFunctionCall>

        <PossiblyUndefinedMethod>
            <errorLevel type="suppress">
                <referencedMethod name="Symfony\Component\Config\Definition\Builder\NodeParentInterface::end"/>
                <referencedMethod name="Symfony\Component\Config\Definition\Builder\NodeDefinition::children"/>
                <referencedMethod name="Symfony\Component\Config\Definition\Builder\NodeDefinition::canbeenabled"/>
            </errorLevel>
        </PossiblyUndefinedMethod>

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

        <DeprecatedMethod errorLevel="info"/>
        <DeprecatedProperty errorLevel="info"/>
        <DeprecatedClass errorLevel="info"/>
        <DeprecatedConstant errorLevel="info"/>
        <DeprecatedFunction errorLevel="info"/>
        <DeprecatedInterface errorLevel="info"/>
        <DeprecatedTrait errorLevel="info"/>

        <InternalMethod errorLevel="info"/>
        <InternalProperty errorLevel="info"/>
        <InternalClass errorLevel="info"/>

        <InvalidDocblock errorLevel="info"/>

        <RedundantCast errorLevel="suppress"/>
        <RedundantCastGivenDocblockType errorLevel="suppress"/>
        <PropertyNotSetInConstructor errorLevel="suppress"/>
        <MissingConstructor errorLevel="info"/>

        <DocblockTypeContradiction errorLevel="info"/>
        <RedundantConditionGivenDocblockType errorLevel="info"/>

        <UnresolvableInclude errorLevel="info"/>

        <InvalidStringClass errorLevel="info"/>
    </issueHandlers>
</psalm>