Add initial version of Gradle build files

.gitignore

@@ -44,3 +44,12 @@ google-ads/*/dependency-reduced-pom.xml
 ## buildnumber-maven-plugin output
 buildNumber.properties
 google-ads/*/buildNumber.properties
+
+# Gradle build output
+.gradle/
+buildSrc/.gradle/
+buildSrc/build/
+google-ads-annotation-processing/build/
+google-ads-examples/build/
+google-ads-migration-examples/build/
+google-ads/build/

buildSrc/build.gradle

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * 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.
+ *
+ * This configuration specifies gradle plugins for all Google Ads Java library
+ * subprojects.
+ */
+
+plugins {
+    id 'groovy-gradle-plugin'
+}
+
+repositories {
+    gradlePluginPortal()
+}

buildSrc/src/main/groovy/com.google.api-ads.java-conventions.gradle

@@ -0,0 +1,123 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * 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.
+ *
+ * These are shared settings common to all Google Ads Java library subprojects.
+ */
+
+plugins {
+    id 'java-library'
+    id 'maven-publish'
+}
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}
+
+group = 'com.google.api-ads'
+version = '11.0.1-SNAPSHOT'
+java.sourceCompatibility = JavaVersion.VERSION_1_8
+java.targetCompatibility = JavaVersion.VERSION_1_8
+
+java {
+    withSourcesJar()
+}
+
+publishing {
+    publications {
+        maven(MavenPublication) {
+            from(components.java)
+        }
+    }
+}
+
+tasks.withType(JavaCompile) {
+    options.encoding = 'UTF-8'
+}
+
+dependencies {
+    implementation 'com.google.guava:guava:26.0-android'
+    implementation 'com.google.auto.service:auto-service:1.0-rc2'
+    implementation 'com.google.api:gax:1.60.1'
+    implementation 'com.google.api:gax-grpc:1.60.1'
+    implementation 'com.google.protobuf:protobuf-java:3.14.0'
+    annotationProcessor 'com.google.auto.service:auto-service:1.0-rc2'
+    testImplementation 'junit:junit:4.13.1'
+}
+
+public class ExampleRunnerTask extends JavaExec {
+
+    @Input
+    public String basePackage = 'com.google.ads.googleads.examples.'
+
+    @Optional
+    @Input
+    private String exampleArguments
+
+    public ExampleRunnerTask() {
+        group = 'Execution'
+        description = 'Run a Google Ads API example.'
+        errorOutput = System.err
+    }
+
+    @Option(option = 'example', description = 'Sets the example to launch and' +
+        ' any arguments. Required for execution. E.g. ' +
+        '"basicoperations.GetCampaigns --customerId 1234567890"')
+    public void setExampleArguments(String exampleArguments) {
+        this.exampleArguments = exampleArguments.trim()
+        int firstSpaceIndex = this.exampleArguments.indexOf(' ')
+
+        // No additional arguments were passed, just the example name.
+        if (firstSpaceIndex == -1) {
+            main = basePackage + this.exampleArguments
+        }
+        // Otherwise, separate the input and set the arguments to pass to the
+        // main class.
+        else {
+            main = basePackage + this.exampleArguments[0..firstSpaceIndex - 1]
+            argsString(exampleArguments[(firstSpaceIndex + 1)..-1])
+        }
+    }
+
+    @TaskAction
+    @Override
+    public void exec() {
+        if (!(exampleArguments?.trim())) {
+            throw new GradleException('\033[0;31mMissing example!\033[0m ' +
+                'Please rerun with one provided, e.g. ' +
+                '\033[0;35m--example="basicoperations.GetCampaigns"\033[0m')
+        }
+        logQuietMessage('Running example: ' + main + ', args: ' +
+            args.toString())
+        try {
+            super.exec()
+        }
+        catch (Exception e) {
+            logQuietMessage('\n\033[0;31mrunExample exception!\033[0m Did ' +
+                'you provide a valid example identifier? E.g. ' +
+                '\033[0;35m--example="basicoperations.GetCampaigns"\033[0m\n\n' +
+                e.message)
+        }
+    }
+
+    public String getExampleArguments() {
+        return exampleArguments
+    }
+
+    private void logQuietMessage(String message) {
+        logger.quiet(message)
+    }
+
+}

google-ads-annotation-processing/build.gradle

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * 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.
+ *
+ * This is the build configuration for the google-ads-annotation-processing
+ * subproject.
+ */
+
+plugins {
+    id 'com.google.api-ads.java-conventions'
+}
+
+dependencies {
+    implementation 'com.squareup:javapoet:1.11.1'
+    implementation 'javax.annotation:javax.annotation-api:1.3.2'
+    testImplementation 'org.mockito:mockito-all:1.9.5'
+}
+
+description = 'Google Ads API client library for Java annotation processor'
+

google-ads-examples/build.gradle

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * 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.
+ *
+ * This is the build file for the google-ads-examples subproject. It depends on
+ * the google-ads subproject.
+ *
+ * This project contains examples for using the Google Ads API. You can launch
+ * examples by navigating to the google-ads-examples folder and running the
+ * provided runExample gradle task. Note that we recommend running with the
+ * quiet flag (-q) to reduce screen clutter:
+ *     -- Mac/Linux --
+ *     ./gradlew -q runExample --example='basicoperations.GetCampaigns --customerId 1234567890'
+ *
+ *     -- Windows --
+ *     gradlew -q runExample --example='basicoperations.GetCampaigns --customerId 1234567890'
+ */
+
+plugins {
+    id 'com.google.api-ads.java-conventions'
+}
+
+dependencies {
+    implementation project(':google-ads')
+    implementation 'org.apache.commons:commons-lang3:3.11'
+    implementation 'com.beust:jcommander:1.72'
+    implementation 'joda-time:joda-time:2.8.2'
+    runtimeOnly 'org.apache.logging.log4j:log4j-slf4j-impl:2.11.1'
+    testImplementation 'org.mockito:mockito-core:2.27.0'
+}
+
+description = 'Google Ads API client library for Java examples'
+
+task runExample(type: ExampleRunnerTask) {
+    classpath = sourceSets.main.runtimeClasspath
+}

google-ads-migration-examples/build.gradle

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * 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.
+ *
+ * This is the build configuration for the google-ads-migration-examples
+ * subproject. It depends on the google-ads subproject.
+ */
+
+plugins {
+    id 'com.google.api-ads.java-conventions'
+}
+
+dependencies {
+    implementation project(':google-ads')
+    implementation 'com.google.api-ads:ads-lib:4.4.0'
+    implementation 'com.google.api-ads:adwords-axis:4.4.0'
+    implementation 'com.beust:jcommander:1.72'
+    implementation 'joda-time:joda-time:2.8.2'
+    runtimeOnly 'org.apache.logging.log4j:log4j-slf4j-impl:2.11.1'
+    testImplementation 'org.mockito:mockito-core:2.27.0'
+}
+
+description = 'Google Ads API client library for Java migration examples'
+
+task runMigrationExample(type: ExampleRunnerTask) {
+    classpath = sourceSets.main.runtimeClasspath
+    basePackage = 'com.google.ads.googleads.migration.'
+}

google-ads/build.gradle

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * 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.
+ *
+ * This is the build configuration for the google-ads-java subproject. It depends
+ * on the google-ads-annotation-processing subproject.
+ */
+
+plugins {
+    id 'com.google.api-ads.java-conventions'
+    id 'com.google.protobuf' version "0.8.15"
+}
+
+sourceSets {
+    test {
+        proto {
+            srcDir 'src/test/resources/protos/'
+        }
+    }
+}
+
+protobuf {
+    protoc {
+        artifact = 'com.google.protobuf:protoc:3.15.0-rc-1'
+    }
+}
+
+dependencies {
+    implementation 'io.netty:netty-tcnative-boringssl-static:2.0.26.Final'
+    implementation 'org.slf4j:slf4j-api:1.7.25'
+    implementation project(':google-ads-annotation-processing')
+    annotationProcessor project(':google-ads-annotation-processing')
+    annotationProcessor "com.google.auto.value:auto-value:1.7.3"
+    testImplementation 'org.hamcrest:java-hamcrest:2.0.0.0'
+    testImplementation 'org.mockito:mockito-all:1.9.5'
+    testImplementation 'com.google.api:gax-grpc:1.60.1:testlib'
+    testImplementation 'io.grpc:grpc-context:1.30.0'
+    testImplementation 'com.google.truth:truth:0.27'
+    testImplementation 'com.google.auto.value:auto-value-annotations:1.7.3'
+}
+
+description = 'Google Ads API client library for Java'
+

gradle.properties

@@ -0,0 +1,22 @@
+#
+# Copyright 2020 Google LLC
+#
+# 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.
+#
+# These are global settings for the gradle build process.
+
+org.gradle.jvmargs=-Xmx5g -XX:MaxMetaspaceSize=2048m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+org.gradle.caching=true
+org.gradle.console=rich
+org.gradle.parallel=true
+

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists