nandakumar131 commented on code in PR #8030: URL: https://github.com/apache/ozone/pull/8030#discussion_r1992786032
########## hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/utils/AutoCompletion.java: ########## @@ -0,0 +1,131 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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 org.apache.hadoop.ozone.utils; + +import java.util.Objects; +import org.apache.hadoop.hdds.cli.GenericCli; +import org.apache.ratis.util.ReflectionUtils; +import org.reflections.Reflections; +import picocli.AutoComplete; +import picocli.CommandLine; +import picocli.CommandLine.Option; + +/** + * Tool to generate bash/zsh auto-complete scripts for Ozone CLI. + */ +public final class AutoCompletion { + + private static final String OZONE_COMMAND = "ozone "; + private static final int PREFIX_LENGTH = OZONE_COMMAND.length(); + private static final String[] PACKAGES_TO_SCAN = { + "org.apache.hadoop.hdds", + "org.apache.hadoop.ozone", + "org.apache.ozone", + }; + + private AutoCompletion() { } + + public static void main(String[] args) { + final CommandLine ozone = new CommandLine(new Ozone()); + for (String pkg : PACKAGES_TO_SCAN) { + new Reflections(pkg).getSubTypesOf(GenericCli.class).stream() + .map(AutoCompletion::getCommand) + .filter(Objects::nonNull) + .filter(AutoCompletion::isPublicCommand) + .forEach(command -> ozone.addSubcommand(getCommandName(command), command)); + } + System.out.println(AutoComplete.bash("ozone", ozone)); Review Comment: The reason for writing the script to stdout is to allows users to install Ozone completion with a single command. The same command can also be added to the `.bashrc`/`.zshrc` file. ``` source <(ozone completion) ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
