Add support for writing credentials in Gradle's build file

initializr-generator-spring/src/test/resources/project/gradle/repositories-build.gradle.gen

@@ -10,8 +10,12 @@ sourceCompatibility = '1.8'
 
 repositories {
 	mavenCentral()
-	maven { url 'https://example.com/foo' }
-	maven { url 'https://example.com/bar' }
+	maven {
+		url 'https://example.com/foo'
+	}
+	maven {
+		url 'https://example.com/bar'
+	}
 }
 
 dependencies {

initializr-generator-spring/src/test/resources/project/gradle/repositories-build.gradle.kts.gen

@@ -10,8 +10,12 @@ java.sourceCompatibility = JavaVersion.VERSION_1_8
 
 repositories {
 	mavenCentral()
-	maven { url = uri("https://example.com/foo") }
-	maven { url = uri("https://example.com/bar") }
+	maven {
+		url = uri("https://example.com/foo")
+	}
+	maven {
+		url = uri("https://example.com/bar")
+	}
 }
 
 dependencies {

initializr-generator-spring/src/test/resources/project/gradle/repositories-milestone-build.gradle.gen

@@ -10,7 +10,9 @@ sourceCompatibility = '1.8'
 
 repositories {
 	mavenCentral()
-	maven { url 'https://repo.spring.io/milestone' }
+	maven {
+		url 'https://repo.spring.io/milestone'
+	}
 }
 
 dependencies {

initializr-generator-spring/src/test/resources/project/gradle/repositories-milestone-build.gradle.kts.gen

@@ -10,7 +10,9 @@ java.sourceCompatibility = JavaVersion.VERSION_1_8
 
 repositories {
 	mavenCentral()
-	maven { url = uri("https://repo.spring.io/milestone") }
+	maven {
+		url = uri("https://repo.spring.io/milestone")
+	}
 }
 
 dependencies {

initializr-generator/src/main/java/io/spring/initializr/generator/buildsystem/MavenRepository.java

@@ -20,6 +20,7 @@
  * A Maven repository.
  *
  * @author Andy Wilkinson
+ * @author Jafer Khan Shamshad
  */
 public class MavenRepository {
 
@@ -37,11 +38,14 @@ public class MavenRepository {
 
 	private final boolean snapshotsEnabled;
 
+	private final MavenRepositoryCredentials credentials;
+
 	protected MavenRepository(Builder builder) {
 		this.id = builder.id;
 		this.name = builder.name;
 		this.url = builder.url;
 		this.snapshotsEnabled = builder.snapshotsEnabled;
+		this.credentials = builder.credentials;
 	}
 
 	/**
@@ -87,6 +91,14 @@ public boolean isSnapshotsEnabled() {
 		return this.snapshotsEnabled;
 	}
 
+	/**
+	 * Return the credentials required for accessing the repository.
+	 * @return the repository credentials
+	 */
+	public MavenRepositoryCredentials getCredentials() {
+		return this.credentials;
+	}
+
 	public static class Builder {
 
 		private String id;
@@ -97,6 +109,8 @@ public static class Builder {
 
 		private boolean snapshotsEnabled;
 
+		private MavenRepositoryCredentials credentials;
+
 		public Builder(String id, String url) {
 			this.id = id;
 			this.name = id;
@@ -143,6 +157,16 @@ public Builder snapshotsEnabled(boolean snapshotsEnabled) {
 			return this;
 		}
 
+		/**
+		 * Set the credentials required for accessing the repository.
+		 * @param credentials the credentials
+		 * @return this for method chaining
+		 */
+		public Builder credentials(MavenRepositoryCredentials credentials) {
+			this.credentials = credentials;
+			return this;
+		}
+
 		/**
 		 * Build a {@link MavenRepository} with the current state of this builder.
 		 * @return a {@link MavenRepository}

initializr-generator/src/main/java/io/spring/initializr/generator/buildsystem/MavenRepositoryCredentials.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2012-2020 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.
+ */
+
+package io.spring.initializr.generator.buildsystem;
+
+/**
+ * Represents credentials for a {@link MavenRepository maven repository}.
+ *
+ * @author Jafer Khan Shamshad
+ */
+public class MavenRepositoryCredentials {
+
+	private final String username;
+
+	private final String password;
+
+	public MavenRepositoryCredentials(String username, String password) {
+		this.username = username;
+		this.password = password;
+	}
+
+	/**
+	 * Return the username required to access the repository.
+	 * @return the username
+	 */
+	public String getUsername() {
+		return this.username;
+	}
+
+	/**
+	 * Return the password required to access the repository.
+	 * @return the password
+	 */
+	public String getPassword() {
+		return this.password;
+	}
+
+}

initializr-generator/src/main/java/io/spring/initializr/generator/buildsystem/gradle/GradleBuildWriter.java

@@ -46,6 +46,7 @@
  * @author Andy Wilkinson
  * @author Stephane Nicoll
  * @author Jean-Baptiste Nizet
+ * @author Jafer Khan Shamshad
  * @see GroovyDslGradleBuildWriter
  * @see KotlinDslGradleBuildWriter
  */
@@ -96,11 +97,15 @@ protected List<StandardGradlePlugin> extractStandardPlugin(GradleBuild build) {
 	protected abstract void writeConfigurations(IndentingWriter writer, GradleConfigurationContainer configurations);
 
 	protected final void writeRepositories(IndentingWriter writer, GradleBuild build) {
-		writeNestedCollection(writer, "repositories", build.repositories().items().collect(Collectors.toList()),
-				this::repositoryAsString);
+		List<MavenRepository> repositories = build.repositories().items().collect(Collectors.toList());
+		if (!repositories.isEmpty()) {
+			writer.println("repositories {");
+			writer.indented(() -> repositories.forEach((repository) -> writeRepository(writer, repository)));
+			writer.println("}");
+		}
 	}
 
-	protected abstract String repositoryAsString(MavenRepository repository);
+	protected abstract void writeRepository(IndentingWriter writer, MavenRepository repository);
 
 	private void writeProperties(IndentingWriter writer, PropertyContainer properties) {
 		if (properties.isEmpty()) {

initializr-generator/src/main/java/io/spring/initializr/generator/buildsystem/gradle/GradleSettingsWriter.java

@@ -17,13 +17,15 @@
 package io.spring.initializr.generator.buildsystem.gradle;
 
 import io.spring.initializr.generator.buildsystem.MavenRepository;
+import io.spring.initializr.generator.buildsystem.MavenRepositoryCredentials;
 import io.spring.initializr.generator.io.IndentingWriter;
 
 /**
  * {@link GradleBuild} settings writer abstraction.
  *
  * @author Andy Wilkinson
  * @author Jean-Baptiste Nizet
+ * @author Jafer Khan Shamshad
  * @see GroovyDslGradleSettingsWriter
  * @see KotlinDslGradleSettingsWriter
  */
@@ -55,7 +57,7 @@ private void writePluginManagement(IndentingWriter writer, GradleBuild build) {
 	private void writeRepositories(IndentingWriter writer, GradleBuild build) {
 		writer.println("repositories {");
 		writer.indented(() -> {
-			build.pluginRepositories().items().map(this::repositoryAsString).forEach(writer::println);
+			build.pluginRepositories().items().forEach((repository) -> writeRepository(writer, repository));
 			writer.println("gradlePluginPortal()");
 		});
 		writer.println("}");
@@ -79,15 +81,31 @@ private void writeResolutionStrategyIfNecessary(IndentingWriter writer, GradleBu
 		writer.println("}");
 	}
 
-	private String repositoryAsString(MavenRepository repository) {
+	private void writeRepository(IndentingWriter writer, MavenRepository repository) {
 		if (MavenRepository.MAVEN_CENTRAL.equals(repository)) {
-			return "mavenCentral()";
+			writer.println("mavenCentral()");
+			return;
 		}
-		return "maven { " + urlAssignment(repository.getUrl()) + " }";
+
+		writer.println("maven {");
+		writer.indented(() -> {
+			writer.println(propertyAssignment("url", repository.getUrl()));
+
+			MavenRepositoryCredentials credentials = repository.getCredentials();
+			if (credentials != null) {
+				writer.println("credentials {");
+				writer.indented(() -> {
+					writer.println(propertyAssignment("username", credentials.getUsername()));
+					writer.println(propertyAssignment("password", credentials.getPassword()));
+				});
+				writer.println("}");
+			}
+		});
+		writer.println("}");
 	}
 
 	protected abstract String wrapWithQuotes(String value);
 
-	protected abstract String urlAssignment(String url);
+	protected abstract String propertyAssignment(String name, String value);
 
 }

initializr-generator/src/main/java/io/spring/initializr/generator/buildsystem/gradle/GroovyDslGradleBuildWriter.java

@@ -25,6 +25,7 @@
 import io.spring.initializr.generator.buildsystem.Dependency;
 import io.spring.initializr.generator.buildsystem.Dependency.Exclusion;
 import io.spring.initializr.generator.buildsystem.MavenRepository;
+import io.spring.initializr.generator.buildsystem.MavenRepositoryCredentials;
 import io.spring.initializr.generator.io.IndentingWriter;
 import io.spring.initializr.generator.version.VersionProperty;
 import io.spring.initializr.generator.version.VersionReference;
@@ -33,6 +34,7 @@
  * A {@link GradleBuild} writer for {@code build.gradle}.
  *
  * @author Jean-Baptiste Nizet
+ * @author Jafer Khan Shamshad
  */
 public class GroovyDslGradleBuildWriter extends GradleBuildWriter {
 
@@ -92,11 +94,27 @@ protected void writeJavaSourceCompatibility(IndentingWriter writer, GradleBuildS
 	}
 
 	@Override
-	protected String repositoryAsString(MavenRepository repository) {
+	protected void writeRepository(IndentingWriter writer, MavenRepository repository) {
 		if (MavenRepository.MAVEN_CENTRAL.equals(repository)) {
-			return "mavenCentral()";
+			writer.println("mavenCentral()");
+			return;
 		}
-		return "maven { url '" + repository.getUrl() + "' }";
+
+		writer.println("maven {");
+		writer.indented(() -> {
+			writer.println("url '" + repository.getUrl() + "'");
+
+			MavenRepositoryCredentials credentials = repository.getCredentials();
+			if (credentials != null) {
+				writer.println("credentials {");
+				writer.indented(() -> {
+					writer.println("username '" + credentials.getUsername() + "'");
+					writer.println("password '" + credentials.getPassword() + "'");
+				});
+				writer.println("}");
+			}
+		});
+		writer.println("}");
 	}
 
 	@Override

initializr-generator/src/main/java/io/spring/initializr/generator/buildsystem/gradle/GroovyDslGradleSettingsWriter.java

@@ -20,6 +20,7 @@
  * A {@link GradleBuild} writer for {@code settings.gradle}.
  *
  * @author Jean-Baptiste Nizet
+ * @author Jafer Khan Shamshad
  */
 public class GroovyDslGradleSettingsWriter extends GradleSettingsWriter {
 
@@ -29,8 +30,8 @@ protected String wrapWithQuotes(String value) {
 	}
 
 	@Override
-	protected String urlAssignment(String url) {
-		return "url " + wrapWithQuotes(url);
+	protected String propertyAssignment(String name, String value) {
+		return name + " " + wrapWithQuotes(value);
 	}
 
 }

initializr-generator/src/main/java/io/spring/initializr/generator/buildsystem/gradle/KotlinDslGradleBuildWriter.java

@@ -27,6 +27,7 @@
 import io.spring.initializr.generator.buildsystem.Dependency;
 import io.spring.initializr.generator.buildsystem.Dependency.Exclusion;
 import io.spring.initializr.generator.buildsystem.MavenRepository;
+import io.spring.initializr.generator.buildsystem.MavenRepositoryCredentials;
 import io.spring.initializr.generator.io.IndentingWriter;
 import io.spring.initializr.generator.version.VersionProperty;
 import io.spring.initializr.generator.version.VersionReference;
@@ -35,6 +36,7 @@
  * A {@link GradleBuild} writer for {@code build.gradle.kts}.
  *
  * @author Jean-Baptiste Nizet
+ * @author Jafer Khan Shamshad
  */
 public class KotlinDslGradleBuildWriter extends GradleBuildWriter {
 
@@ -109,11 +111,27 @@ private String configurationReference(String configurationName, Collection<Strin
 	}
 
 	@Override
-	protected String repositoryAsString(MavenRepository repository) {
+	protected void writeRepository(IndentingWriter writer, MavenRepository repository) {
 		if (MavenRepository.MAVEN_CENTRAL.equals(repository)) {
-			return "mavenCentral()";
+			writer.println("mavenCentral()");
+			return;
 		}
-		return "maven { url = uri(\"" + repository.getUrl() + "\") }";
+
+		writer.println("maven {");
+		writer.indented(() -> {
+			writer.println("url = uri(\"" + repository.getUrl() + "\")");
+
+			MavenRepositoryCredentials credentials = repository.getCredentials();
+			if (credentials != null) {
+				writer.println("credentials {");
+				writer.indented(() -> {
+					writer.println("username = \"" + credentials.getUsername() + "\"");
+					writer.println("password = \"" + credentials.getPassword() + "\"");
+				});
+				writer.println("}");
+			}
+		});
+		writer.println("}");
 	}
 
 	@Override

initializr-generator/src/main/java/io/spring/initializr/generator/buildsystem/gradle/KotlinDslGradleSettingsWriter.java

@@ -20,6 +20,7 @@
  * A {@link GradleBuild} writer for {@code settings.gradle.kts}.
  *
  * @author Jean-Baptiste Nizet
+ * @author Jafer Khan Shamshad
  */
 public class KotlinDslGradleSettingsWriter extends GradleSettingsWriter {
 
@@ -29,8 +30,12 @@ protected String wrapWithQuotes(String value) {
 	}
 
 	@Override
-	protected String urlAssignment(String url) {
-		return "url = uri(\"" + url + "\")";
+	protected String propertyAssignment(String name, String value) {
+		if (name.equalsIgnoreCase("url")) {
+			return name + " = uri(" + wrapWithQuotes(value) + ")";
+		}
+
+		return name + " = " + wrapWithQuotes(value);
 	}
 
 }