Added an option to build the project in parallel

with this change we've added some scripts to run the build in parallel. It makes the build ~ 2 times faster

fixes #190

README.adoc

@@ -1639,3 +1639,36 @@ cd spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin
 ./gradlew clean build
 ```
 
+=== Helpful scripts
+
+We're providing a couple of helpful scripts to build the project.
+
+To build the project in parallel (by default uses 4 cores but you can change it)
+
+```
+./scripts/parallelBuild.sh
+```
+
+and with 8 cores
+
+```
+CORES=8 ./scripts/parallelBuild.sh
+```
+
+To build the project without any integration tests (by default uses 1 core)
+
+```
+./scripts/noIntegration.sh
+```
+
+and with 8 cores
+
+```
+CORES=8 ./scripts/noIntegration.sh
+```
+
+To generate the documentation (both the root one and the maven plugin one)
+
+```
+./scripts/generateDocs.sh
+```

docs/src/main/asciidoc/building.adoc

@@ -51,4 +51,37 @@ cd spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin
 ./gradlew clean build
 ```
 
+=== Helpful scripts
+
+We're providing a couple of helpful scripts to build the project.
+
+To build the project in parallel (by default uses 4 cores but you can change it)
+
+```
+./scripts/parallelBuild.sh
+```
+
+and with 8 cores
+
+```
+CORES=8 ./scripts/parallelBuild.sh
+```
+
+To build the project without any integration tests (by default uses 1 core)
+
+```
+./scripts/noIntegration.sh
+```
+
+and with 8 cores
+
+```
+CORES=8 ./scripts/noIntegration.sh
+```
+
+To generate the documentation (both the root one and the maven plugin one)
+
+```
+./scripts/generateDocs.sh
+```
 

scripts/noIntegration.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+source common.sh || source scripts/common.sh || echo "No common.sh script found..."
+
+set -e
+
+[[ -z "${CORES}" ]] && CORES=1
+echo -e "\n\nRUNNING FAST BUILD (NO INTEGRATION TESTS) WITH [${CORES}] CORES\n\n"
+
+./mvnw clean install -Pdocs,fast -T ${CORES}

scripts/parallelBuild.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+source common.sh || source scripts/common.sh || echo "No common.sh script found..."
+
+set -e
+
+[[ -z "${CORES}" ]] && CORES=8
+echo -e "\n\nRUNNING PARALLEL BUILD WITH [${CORES}] CORES\n\n"
+
+./mvnw clean install -Pintegration,docs -T ${CORES} -Dinvoker.parallelThreads=${CORES}

spring-cloud-contract-tools/spring-cloud-contract-maven-plugin/pom.xml

@@ -247,6 +247,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-project-info-reports-plugin</artifactId>
+				<version>2.9</version>
 				<reportSets>
 					<reportSet>
 						<reports>