Added nohttp checkstyle; fixes gh-134

pom.xml

@@ -83,9 +83,13 @@
 		<checkstyle.suppressions.file>
 			https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/${spring-cloud-build-checkstyle.branch}/spring-cloud-build-tools/src/checkstyle/checkstyle-suppressions.xml
 		</checkstyle.suppressions.file>
+		<checkstyle.nohttp.file>
+			https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/${spring-cloud-build-checkstyle.branch}/spring-cloud-build-tools/src/checkstyle/nohttp-checkstyle.xml
+		</checkstyle.nohttp.file>
 		<checkstyle.additional.suppressions.file>
 			${maven.multiModuleProjectDirectory}/src/checkstyle/checkstyle-suppressions.xml
 		</checkstyle.additional.suppressions.file>
+		<nohttp-checkstyle.version>0.0.1.BUILD-SNAPSHOT</nohttp-checkstyle.version>
 	</properties>
 	<dependencyManagement>
 		<dependencies>
@@ -406,6 +410,11 @@
 							<artifactId>spring-cloud-build-tools</artifactId>
 							<version>${spring-cloud-build.version}</version>
 						</dependency>
+						<dependency>
+							<groupId>io.spring.nohttp</groupId>
+							<artifactId>nohttp-checkstyle</artifactId>
+							<version>${nohttp-checkstyle.version}</version>
+						</dependency>
 					</dependencies>
 					<executions>
 						<execution>
@@ -436,6 +445,21 @@
 								<goal>check</goal>
 							</goals>
 						</execution>
+						<execution>
+							<id>no-http-checkstyle-validation</id>
+							<phase>validate</phase>
+							<inherited>true</inherited>
+							<configuration>
+								<skip>${disable.checks}</skip>
+								<configLocation>${checkstyle.nohttp.file}</configLocation>
+								<includes>**/*</includes>
+								<excludes>**/.git/**/*,**/target/**/*,**/*.log</excludes>
+								<sourceDirectories>./</sourceDirectories>
+							</configuration>
+							<goals>
+								<goal>check</goal>
+							</goals>
+						</execution>
 					</executions>
 				</plugin>
 				<plugin>

spring-cloud-build-tools/src/checkstyle/nohttp-checkstyle.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0"?>
+<!--
+  ~ Copyright 2002-2019 the original author or authors.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      https://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
+		"https://www.puppycrawl.com/dtds/configuration_1_3.dtd">
+<module name="Checker">
+
+	<!-- Configure checker to use UTF-8 encoding -->
+	<property name="charset" value="UTF-8"/>
+	<!-- Configure checker to run on files with these extensions -->
+	<property name="fileExtensions" value=""/>
+	<!-- For detailed checkstyle configuration, see https://github.com/spring-io/nohttp/tree/master/nohttp-checkstyle -->
+	<module name="io.spring.nohttp.checkstyle.check.NoHttpCheck">
+	</module>
+</module>