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Add Checkstyle to POM with Google settings advice (#4047)

* Add Checkstyle to POM with Google settings advice

* Add note re. changes for swagger-codegen

* Use Checkstyle 6.19 - v7 removed JDK 7 runtime support

* Add a link to the original config
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1 parent c2780ab commit 0c1b1aa7494be70a599ea1a6285ea4b61f16851a @nickcmaynard nickcmaynard committed with wing328 Nov 1, 2016
Showing with 236 additions and 2 deletions.
  1. +207 −0 google_checkstyle.xml
  2. +29 −2 pom.xml
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@@ -0,0 +1,207 @@
+<?xml version="1.0"?>
+<!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.3//EN" "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
+
+<!--
+ Adjusted from original Google Checkstyle config - https://github.com/checkstyle/checkstyle/blob/master/src/main/resources/google_checks.xml
+ For details, see further comments in this file.
+-->
+
+<!--
+ Checkstyle configuration that checks the Google coding conventions from Google Java Style
+ that can be found at https://google.github.io/styleguide/javaguide.html.
+
+ Checkstyle is very configurable. Be sure to read the documentation at
+ http://checkstyle.sf.net (or in your downloaded distribution).
+
+ To completely disable a check, just comment it out or delete it from the file.
+
+ Authors: Max Vetrenko, Ruslan Diachenko, Roman Ivanov.
+ -->
+
+<module name="Checker">
+ <property name="charset" value="UTF-8"/>
+
+ <property name="severity" value="warning"/>
+
+ <property name="fileExtensions" value="java, properties, xml"/>
+ <!-- Checks for whitespace -->
+ <!-- See http://checkstyle.sf.net/config_whitespace.html -->
+ <module name="FileTabCharacter">
+ <property name="eachLine" value="true"/>
+ </module>
+
+ <module name="TreeWalker">
+ <module name="OuterTypeFilename"/>
+ <module name="IllegalTokenText">
+ <property name="tokens" value="STRING_LITERAL, CHAR_LITERAL"/>
+ <property name="format" value="\\u00(08|09|0(a|A)|0(c|C)|0(d|D)|22|27|5(C|c))|\\(0(10|11|12|14|15|42|47)|134)"/>
+ <property name="message" value="Avoid using corresponding octal or Unicode escape."/>
+ </module>
+ <module name="AvoidEscapedUnicodeCharacters">
+ <property name="allowEscapesForControlCharacters" value="true"/>
+ <property name="allowByTailComment" value="true"/>
+ <property name="allowNonPrintableEscapes" value="true"/>
+ </module>
+ <module name="LineLength">
+ <property name="max" value="100"/>
+ <property name="ignorePattern" value="^package.*|^import.*|a href|href|http://|https://|ftp://"/>
+ </module>
+ <module name="AvoidStarImport"/>
+ <module name="OneTopLevelClass"/>
+ <module name="NoLineWrap"/>
+ <module name="EmptyBlock">
+ <property name="option" value="TEXT"/>
+ <property name="tokens" value="LITERAL_TRY, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, LITERAL_SWITCH"/>
+ </module>
+ <module name="NeedBraces"/>
+ <module name="LeftCurly">
+ <property name="maxLineLength" value="100"/>
+ </module>
+ <module name="RightCurly"/>
+ <module name="RightCurly">
+ <property name="option" value="alone"/>
+ <property name="tokens" value="CLASS_DEF, METHOD_DEF, CTOR_DEF, LITERAL_FOR, LITERAL_WHILE, LITERAL_DO, STATIC_INIT, INSTANCE_INIT"/>
+ </module>
+ <module name="WhitespaceAround">
+ <property name="allowEmptyConstructors" value="true"/>
+ <property name="allowEmptyMethods" value="true"/>
+ <property name="allowEmptyTypes" value="true"/>
+ <property name="allowEmptyLoops" value="true"/>
+ <message key="ws.notFollowed" value="WhitespaceAround: ''{0}'' is not followed by whitespace. Empty blocks may only be represented as '{}' when not part of a multi-block statement (4.1.3)"/>
+ <message key="ws.notPreceded" value="WhitespaceAround: ''{0}'' is not preceded with whitespace."/>
+ </module>
+ <module name="OneStatementPerLine"/>
+ <module name="MultipleVariableDeclarations"/>
+ <module name="ArrayTypeStyle"/>
+ <module name="MissingSwitchDefault"/>
+ <module name="FallThrough"/>
+ <module name="UpperEll"/>
+ <module name="ModifierOrder"/>
+ <module name="EmptyLineSeparator">
+ <property name="allowNoEmptyLineBetweenFields" value="true"/>
+ </module>
+ <module name="SeparatorWrap">
+ <property name="tokens" value="DOT"/>
+ <property name="option" value="nl"/>
+ </module>
+ <module name="SeparatorWrap">
+ <property name="tokens" value="COMMA"/>
+ <property name="option" value="EOL"/>
+ </module>
+ <module name="PackageName">
+ <property name="format" value="^[a-z]+(\.[a-z][a-z0-9]*)*$"/>
+ <message key="name.invalidPattern" value="Package name ''{0}'' must match pattern ''{1}''."/>
+ </module>
+ <module name="TypeName">
+ <message key="name.invalidPattern" value="Type name ''{0}'' must match pattern ''{1}''."/>
+ </module>
+ <module name="MemberName">
+ <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9]*$"/>
+ <message key="name.invalidPattern" value="Member name ''{0}'' must match pattern ''{1}''."/>
+ </module>
+ <module name="ParameterName">
+ <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9]*$"/>
+ <message key="name.invalidPattern" value="Parameter name ''{0}'' must match pattern ''{1}''."/>
+ </module>
+ <module name="CatchParameterName">
+ <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9]*$"/>
+ <message key="name.invalidPattern" value="Catch parameter name ''{0}'' must match pattern ''{1}''."/>
+ </module>
+ <module name="LocalVariableName">
+ <property name="tokens" value="VARIABLE_DEF"/>
+ <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9]*$"/>
+ <property name="allowOneCharVarInForLoop" value="true"/>
+ <message key="name.invalidPattern" value="Local variable name ''{0}'' must match pattern ''{1}''."/>
+ </module>
+ <module name="ClassTypeParameterName">
+ <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
+ <message key="name.invalidPattern" value="Class type name ''{0}'' must match pattern ''{1}''."/>
+ </module>
+ <module name="MethodTypeParameterName">
+ <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
+ <message key="name.invalidPattern" value="Method type name ''{0}'' must match pattern ''{1}''."/>
+ </module>
+ <module name="InterfaceTypeParameterName">
+ <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
+ <message key="name.invalidPattern" value="Interface type name ''{0}'' must match pattern ''{1}''."/>
+ </module>
+ <module name="NoFinalizer"/>
+ <module name="GenericWhitespace">
+ <message key="ws.followed" value="GenericWhitespace ''{0}'' is followed by whitespace."/>
+ <message key="ws.preceded" value="GenericWhitespace ''{0}'' is preceded with whitespace."/>
+ <message key="ws.illegalFollow" value="GenericWhitespace ''{0}'' should followed by whitespace."/>
+ <message key="ws.notPreceded" value="GenericWhitespace ''{0}'' is not preceded with whitespace."/>
+ </module>
+ <module name="Indentation">
+ <!-- Modified defaults for swagger-codegen (multipled Google by 2)-->
+ <property name="basicOffset" value="4"/>
+ <property name="braceAdjustment" value="0"/>
+ <property name="caseIndent" value="4"/>
+ <property name="throwsIndent" value="8"/>
+ <property name="lineWrappingIndentation" value="8"/>
+ <property name="arrayInitIndent" value="4"/>
+ <!-- Actual Google Java Style defaults -->
+ <!--
+ <property name="basicOffset" value="2"/>
+ <property name="braceAdjustment" value="0"/>
+ <property name="caseIndent" value="2"/>
+ <property name="throwsIndent" value="4"/>
+ <property name="lineWrappingIndentation" value="4"/>
+ <property name="arrayInitIndent" value="2"/>
+ -->
+ </module>
+ <module name="AbbreviationAsWordInName">
+ <property name="ignoreFinal" value="false"/>
+ <property name="allowedAbbreviationLength" value="1"/>
+ </module>
+ <module name="OverloadMethodsDeclarationOrder"/>
+ <module name="VariableDeclarationUsageDistance"/>
+ <module name="CustomImportOrder">
+ <property name="specialImportsRegExp" value="com.google"/>
+ <property name="sortImportsInGroupAlphabetically" value="true"/>
+ <property name="customImportOrderRules" value="STATIC###SPECIAL_IMPORTS###THIRD_PARTY_PACKAGE###STANDARD_JAVA_PACKAGE"/>
+ </module>
+ <module name="MethodParamPad"/>
+ <module name="OperatorWrap">
+ <property name="option" value="NL"/>
+ <property name="tokens" value="BAND, BOR, BSR, BXOR, DIV, EQUAL, GE, GT, LAND, LE, LITERAL_INSTANCEOF, LOR, LT, MINUS, MOD, NOT_EQUAL, PLUS, QUESTION, SL, SR, STAR "/>
+ </module>
+ <module name="AnnotationLocation">
+ <property name="tokens" value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF"/>
+ </module>
+ <module name="AnnotationLocation">
+ <property name="tokens" value="VARIABLE_DEF"/>
+ <property name="allowSamelineMultipleAnnotations" value="true"/>
+ </module>
+ <module name="NonEmptyAtclauseDescription"/>
+ <module name="JavadocTagContinuationIndentation"/>
+ <module name="SummaryJavadoc">
+ <property name="forbiddenSummaryFragments" value="^@return the *|^This method returns |^A [{]@code [a-zA-Z0-9]+[}]( is a )"/>
+ </module>
+ <module name="JavadocParagraph"/>
+ <module name="AtclauseOrder">
+ <property name="tagOrder" value="@param, @return, @throws, @deprecated"/>
+ <property name="target" value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF, VARIABLE_DEF"/>
+ </module>
+ <module name="JavadocMethod">
+ <property name="scope" value="public"/>
+ <property name="allowMissingParamTags" value="true"/>
+ <property name="allowMissingThrowsTags" value="true"/>
+ <property name="allowMissingReturnTag" value="true"/>
+ <property name="minLineCount" value="2"/>
+ <property name="allowedAnnotations" value="Override, Test"/>
+ <property name="allowThrowsTagsForSubclasses" value="true"/>
+ </module>
+ <module name="MethodName">
+ <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9_]*$"/>
+ <message key="name.invalidPattern" value="Method name ''{0}'' must match pattern ''{1}''."/>
+ </module>
+ <module name="SingleLineJavadoc">
+ <property name="ignoreInlineTags" value="false"/>
+ </module>
+ <module name="EmptyCatchBlock">
+ <property name="exceptionVariableName" value="expected"/>
+ </module>
+ <module name="CommentsIndentation"/>
+ </module>
+</module>
View
31 pom.xml
@@ -1,5 +1,4 @@
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
- xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<parent>
<groupId>org.sonatype.oss</groupId>
<artifactId>oss-parent</artifactId>
@@ -70,6 +69,34 @@
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-checkstyle-plugin</artifactId>
+ <version>2.17</version>
+ <executions>
+ <execution>
+ <id>validate</id>
+ <phase>validate</phase>
+ <configuration>
+ <configLocation>google_checkstyle.xml</configLocation>
+ <encoding>UTF-8</encoding>
+ <consoleOutput>true</consoleOutput>
+ <failsOnError>true</failsOnError>
+ <linkXRef>false</linkXRef>
+ </configuration>
+ <goals>
+ <goal>check</goal>
+ </goals>
+ </execution>
+ </executions>
+ <dependencies>
+ <dependency>
+ <groupId>com.puppycrawl.tools</groupId>
+ <artifactId>checkstyle</artifactId>
+ <version>6.19</version>
+ </dependency>
+ </dependencies>
+ </plugin>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${surefire-version}</version>
<configuration>

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