scalastyle-config.xml

<scalastyle>
    <name>Protoless 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.scalariform.EmptyClassChecker" enabled="true" />
    <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 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="warning" class="org.scalastyle.scalariform.LowercasePatternMatchChecker" enabled="true"/>
    <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>
    <check level="error" class="org.scalastyle.file.RegexChecker" enabled="true">
        <parameters>
            <parameter name="regex"><![CDATA[implicit (val|def) [a-z][A-Za-z0-9]*\s*=.*]]></parameter>
        </parameters>
        <customMessage><![CDATA[Implicit val and methods must be typed]]></customMessage>
    </check>
    <check enabled="true" class="org.scalastyle.scalariform.ImportOrderChecker" level="error">
        <parameters>
            <parameter name="groups">scalajava,libs,others</parameter>
            <parameter name="group.scalajava">^(scala|java)\..+</parameter>
            <parameter name="group.libs">^(org|com|shapeless|cats)\..+</parameter>
            <parameter name="group.protoless">^(io\.protoless)\.?.*</parameter>
        </parameters>
    </check>
</scalastyle>