scalastyle-config.xml

<!-- copied from typelevel/cats -->
<scalastyle>
    <name>Scalastyle standard configuration</name>
    <check level="error" class="org.scalastyle.file.FileTabChecker" enabled="true"></check>
    <check level="error" class="org.scalastyle.file.FileLengthChecker" enabled="true">
        <parameters>
            <parameter name="maxFileLength"><![CDATA[800]]></parameter>
        </parameters>
    </check>
    <check level="error" class="org.scalastyle.file.WhitespaceEndOfLineChecker" enabled="true"></check>
    <check level="error" class="org.scalastyle.scalariform.ClassNamesChecker" enabled="true">
        <parameters>
            <parameter name="regex"><![CDATA[[A-Z][A-Za-z]*]]></parameter>
        </parameters>
    </check>
    <check level="error" class="org.scalastyle.scalariform.ObjectNamesChecker" enabled="true">
        <parameters>
            <parameter name="regex"><![CDATA[[A-Za-z][A-Za-z]*]]></parameter>
        </parameters>
    </check>
    <check level="error" class="org.scalastyle.scalariform.PackageObjectNamesChecker" enabled="true">
        <parameters>
            <parameter name="regex"><![CDATA[^[a-z][a-z]*$]]></parameter>
        </parameters>
    </check>
    <check level="error" class="org.scalastyle.scalariform.EqualsHashCodeChecker" enabled="true"></check>
    <check level="error" class="org.scalastyle.scalariform.IllegalImportsChecker" enabled="true">
        <parameters>
            <parameter name="illegalImports"><![CDATA[sun._,java.awt._]]></parameter>
        </parameters>
    </check>
    <check level="error" class="org.scalastyle.scalariform.NoWhitespaceBeforeLeftBracketChecker" enabled="true"></check>
    <check level="error" class="org.scalastyle.scalariform.NoWhitespaceAfterLeftBracketChecker" enabled="true"></check>
    <check level="error" class="org.scalastyle.scalariform.ReturnChecker" enabled="true"></check>
    <check level="error" class="org.scalastyle.scalariform.NullChecker" enabled="true"></check>
    <check level="error" class="org.scalastyle.scalariform.NoCloneChecker" enabled="true"></check>
    <check level="error" class="org.scalastyle.scalariform.NoFinalizeChecker" enabled="true"></check>
    <check level="error" class="org.scalastyle.scalariform.CovariantEqualsChecker" enabled="true"></check>
    <check level="error" class="org.scalastyle.file.RegexChecker" enabled="true">
        <parameters>
            <parameter name="regex"><![CDATA[println]]></parameter>
        </parameters>
    </check>
    <check level="error" class="org.scalastyle.scalariform.CyclomaticComplexityChecker" enabled="true">
        <parameters>
            <parameter name="maximum"><![CDATA[10]]></parameter>
        </parameters>
    </check>
    <check level="error" class="org.scalastyle.scalariform.UppercaseLChecker" enabled="true"></check>
    <check level="error" class="org.scalastyle.scalariform.SimplifyBooleanExpressionChecker" enabled="true"></check>
    <check level="error" class="org.scalastyle.scalariform.MethodLengthChecker" enabled="true">
        <parameters>
            <parameter name="maxLength"><![CDATA[50]]></parameter>
        </parameters>
    </check>
    <check level="error" class="org.scalastyle.file.NewLineAtEofChecker" enabled="true"></check>
    <check level="error" class="org.scalastyle.file.NoNewLineAtEofChecker" enabled="false"></check>
    <check level="error" class="org.scalastyle.scalariform.PublicMethodsHaveTypeChecker" enabled="true">
        <parameters>
            <parameter name="ignoreOverride">false</parameter>
        </parameters>
    </check>
    <check level="error" class="org.scalastyle.file.RegexChecker" enabled="true" customId="kind.projector.lambda">
        <parameters>
            <parameter name="regex">Lambda\[</parameter>
        </parameters>
        <customMessage><![CDATA[Use Greek characters in a kind projection (λ[α => ...]).]]></customMessage>
    </check>
    <check enabled="true" class="org.scalastyle.scalariform.EnsureSingleSpaceAfterTokenChecker" level="error">
        <parameters>
            <parameter name="tokens">PACKAGE, WHILE, CASE, NEW, DO, EQUALS, SUBTYPE, SEALED, TYPE, FINAL, IMPORT,
                RETURN, VAL, VAR, ELSE, MATCH, TRY, SUPERTYPE, OP, CATCH, THROW, CLASS, DEF, FOR, LARROW, ABSTRACT, IF,
                OBJECT, COMMA, YIELD, PIPE, IMPLICIT, LAZY, TRAIT, FORSOME, FINALLY, OVERRIDE, ARROW, EXTENDS
            </parameter>
        </parameters>
    </check>
    <check enabled="true" class="org.scalastyle.scalariform.EnsureSingleSpaceBeforeTokenChecker" level="error">
        <parameters>
            <parameter name="tokens">OP, PIPE, FORSOME</parameter>
        </parameters>
    </check>
    <check enabled="true" class="org.scalastyle.scalariform.ForBraceChecker" level="error"/>
    <check enabled="true" class="org.scalastyle.scalariform.ProcedureDeclarationChecker" level="error"/>
    <check enabled="true" class="org.scalastyle.scalariform.RedundantIfChecker" level="error"/>
    <check enabled="true" class="org.scalastyle.scalariform.SpaceAfterCommentStartChecker" level="error"/>
    <check level="error" class="org.scalastyle.file.RegexChecker" enabled="true" customId="type.class.spacing">
        <parameters>
            <parameter name="regex"><![CDATA[(?<!@|simulacrum\.)typeclass]]></parameter>
        </parameters>
        <customMessage><![CDATA[Use 'type class' instead of typeclass (See #441)]]></customMessage>
    </check>
    <check level="error" class="org.scalastyle.file.RegexChecker" enabled="true" customId="if.paren.spacing">
        <parameters>
            <parameter name="regex"><![CDATA[if\(|if\s\s+\(]]></parameter>
        </parameters>
        <customMessage>
            <![CDATA[Put exactly a single space between 'if' and the following parenthesis.]]></customMessage>
    </check>
</scalastyle>