Add empty task/goal for building to docker daemon

jib-gradle-plugin/src/main/java/com/google/cloud/tools/jib/gradle/BuildDockerTask.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2018 Google LLC. All Rights Reserved.
+ *
+ * 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
+ *
+ *      http://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 com.google.cloud.tools.jib.gradle;
+
+import javax.annotation.Nullable;
+import org.gradle.api.DefaultTask;
+import org.gradle.api.tasks.TaskAction;
+
+/** Builds a container image and exports to the default Docker daemon. */
+public class BuildDockerTask extends DefaultTask {
+
+  @Nullable private JibExtension jibExtension;
+
+  @TaskAction
+  public void buildDocker() {
+    getLogger().warn("Doing gradle jibBuildDocker!");
+  }
+
+  void setJibExtension(JibExtension jibExtension) {
+    this.jibExtension = jibExtension;
+  }
+}

jib-gradle-plugin/src/main/java/com/google/cloud/tools/jib/gradle/JibPlugin.java

@@ -36,5 +36,11 @@ public void apply(Project project) {
             "jibDockerContext",
             DockerContextTask.class,
             dockerContextTask -> dockerContextTask.setJibExtension(jibExtension));
+    project
+        .getTasks()
+        .create(
+            "jibBuildDocker",
+            BuildDockerTask.class,
+            buildDockerTask -> buildDockerTask.setJibExtension(jibExtension));
   }
 }

jib-maven-plugin/src/main/java/com/google/cloud/tools/jib/maven/BuildDockerMojo.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2018 Google LLC. All rights reserved.
+ *
+ * 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
+ *
+ *      http://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 com.google.cloud.tools.jib.maven;
+
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugin.MojoFailureException;
+import org.apache.maven.plugins.annotations.Mojo;
+import org.apache.maven.plugins.annotations.ResolutionScope;
+
+/** Builds a container image and exports to the default Docker daemon. */
+@Mojo(name = "buildDocker", requiresDependencyResolution = ResolutionScope.RUNTIME_PLUS_SYSTEM)
+public class BuildDockerMojo extends JibPluginConfiguration {
+
+  @Override
+  public void execute() throws MojoExecutionException, MojoFailureException {
+    getLog().warn("Doing maven jib:buildDocker!");
+  }
+}