Automatically align version of samples' dependency with main version

This commit enhances the tasks that build the samples to
automatically update the version of their spring-restdocs dependency
to match the version of the main project.

buildSrc/src/main/groovy/org/springframework/restdocs/build/SampleBuildConfigurer.groovy

@@ -20,6 +20,7 @@ import org.gradle.api.GradleException
 import org.gradle.api.Project
 import org.gradle.api.Task
 import org.gradle.api.tasks.Exec
+import org.gradle.api.tasks.Copy
 import org.gradle.api.tasks.GradleBuild
 
 public class SampleBuildConfigurer {
@@ -65,6 +66,13 @@ public class SampleBuildConfigurer {
 				"${System.env.MAVEN_HOME}/bin/mvn${suffix}" : "mvn${suffix}",
 						'clean', 'package']
 		mavenBuild.dependsOn dependencies
+
+		mavenBuild.doFirst {
+			replaceVersion(new File(this.workingDir, 'pom.xml'),
+					'<spring-restdocs.version>.*</spring-restdocs.version>',
+					"<spring-restdocs.version>${project.version}</spring-restdocs.version>")
+		}
+
 		return mavenBuild
 	}
 
@@ -75,9 +83,25 @@ public class SampleBuildConfigurer {
 		gradleBuild.dir = this.workingDir
 		gradleBuild.tasks = ['clean', 'build']
 		gradleBuild.dependsOn dependencies
+
+		gradleBuild.doFirst {
+			replaceVersion(new File(this.workingDir, 'build.gradle'),
+					"springRestdocsVersion = '.*'",
+					"springRestdocsVersion = '${project.version}'")
+		}
+
 		return gradleBuild
 	}
 
+	private void replaceVersion(File target, String pattern, String replacement) {
+		def lines = target.readLines()
+		target.withWriter { writer ->
+			lines.each { line ->
+				writer.println(line.replaceAll(pattern, replacement))
+			}
+		}
+	}
+
 	private Task createVerifyIncludes(Project project, File buildDir) {
 		Task verifyIncludes = project.tasks.create("${name}VerifyIncludes")
 		verifyIncludes.description = "Verifies the includes in the ${name} sample"

samples/rest-notes-spring-data-rest/pom.xml

@@ -18,6 +18,7 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<java.version>1.7</java.version>
+		<spring-restdocs.version>1.0.0.BUILD-SNAPSHOT</spring-restdocs.version>
 	</properties>
 
 	<dependencies>
@@ -49,7 +50,7 @@
 		<dependency>
 			<groupId>org.springframework.restdocs</groupId>
 			<artifactId>spring-restdocs-mockmvc</artifactId>
-			<version>1.0.0.BUILD-SNAPSHOT</version>
+			<version>${spring-restdocs.version}</version>
 			<scope>test</scope>
 		</dependency>
 	</dependencies>
@@ -124,4 +125,4 @@
 		</repository>
 	</repositories>
 
-</project>
+</project>

samples/rest-notes-spring-hateoas/build.gradle

@@ -26,6 +26,11 @@ group = 'com.example'
 sourceCompatibility = 1.7
 targetCompatibility = 1.7
 
+ext {
+	snippetsDir = file('build/generated-snippets')
+	springRestdocsVersion = '1.0.0.BUILD-SNAPSHOT'
+}
+
 dependencies {
 	compile 'org.springframework.boot:spring-boot-starter-data-jpa'
 	compile 'org.springframework.boot:spring-boot-starter-hateoas'
@@ -35,11 +40,7 @@ dependencies {
 
 	testCompile 'com.jayway.jsonpath:json-path'
 	testCompile 'org.springframework.boot:spring-boot-starter-test'
-	testCompile 'org.springframework.restdocs:spring-restdocs-mockmvc:1.0.0.BUILD-SNAPSHOT'
+	testCompile "org.springframework.restdocs:spring-restdocs-mockmvc:$springRestdocsVersion"
-}
-
-ext {
-	snippetsDir = file('build/generated-snippets')
 }
 
 test {
@@ -61,4 +62,4 @@ jar {
 }
 
 eclipseJdt.onlyIf { false }
-cleanEclipseJdt.onlyIf { false }
+cleanEclipseJdt.onlyIf { false }