/*
 * 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.maven;

import com.google.cloud.tools.appengine.api.AppEngineException;
import com.google.cloud.tools.appengine.cloudsdk.CloudSdk;
import com.google.cloud.tools.appengine.cloudsdk.CloudSdkAuth;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.plugins.annotations.Mojo;

@Mojo(name = "cloudSdkLogin")
public class CloudSdkLoginMojo extends CloudSdkMojo {

  @Override
  public void execute() throws MojoExecutionException, MojoFailureException {
    try {
      CloudSdk sdk = getAppEngineFactory().defaultCloudSdkBuilder().build();
      new CloudSdkAuth(sdk).login();
    } catch (AppEngineException ex) {
      throw new RuntimeException(ex);
    }

    if (getServiceAccountKeyFile() != null) {
      getLog()
          .warn(
              "serviceAccountKeyFile is configured and will be used instead of Cloud SDK auth "
                  + "state.");
    }
  }
}

@@ -994,16 +994,78 @@
 .Mojo;%0A%0A
+/** Login and set the Cloud SDK common configuration user. */%0A
 @Mojo(na

Add cloudSdkLogin description to appengine:help (#276)