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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.plugins;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardCopyOption;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import joptsimple.OptionSet;
import joptsimple.OptionSpec;
import org.apache.lucene.util.IOUtils;
import org.elasticsearch.cli.Command;
import org.elasticsearch.cli.ExitCodes;
import org.elasticsearch.cli.SettingCommand;
import org.elasticsearch.cli.UserError;
import org.elasticsearch.common.Strings;
import org.elasticsearch.cli.Terminal;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.env.Environment;
import org.elasticsearch.node.internal.InternalSettingsPreparer;
import static org.elasticsearch.cli.Terminal.Verbosity.VERBOSE;
/**
* A command for the plugin cli to remove a plugin from elasticsearch.
*/
class RemovePluginCommand extends SettingCommand {
private final OptionSpec<String> arguments;
RemovePluginCommand() {
super("Removes a plugin from elasticsearch");
this.arguments = parser.nonOptions("plugin name");
}
@Override
protected void execute(Terminal terminal, OptionSet options, Map<String, String> settings) throws Exception {
// TODO: in jopt-simple 5.0 we can enforce a min/max number of positional args
List<String> args = arguments.values(options);
if (args.size() != 1) {
throw new UserError(ExitCodes.USAGE, "Must supply a single plugin id argument");
}
execute(terminal, args.get(0), settings);
}
// pkg private for testing
void execute(Terminal terminal, String pluginName, Map<String, String> settings) throws Exception {
final Environment env = InternalSettingsPreparer.prepareEnvironment(Settings.EMPTY, terminal, settings);
terminal.println("-> Removing " + Strings.coalesceToEmpty(pluginName) + "...");
Path pluginDir = env.pluginsFile().resolve(pluginName);
if (Files.exists(pluginDir) == false) {
throw new UserError(ExitCodes.USAGE, "Plugin " + pluginName + " not found. Run 'plugin list' to get list of installed plugins.");
}
List<Path> pluginPaths = new ArrayList<>();
Path pluginBinDir = env.binFile().resolve(pluginName);
if (Files.exists(pluginBinDir)) {
if (Files.isDirectory(pluginBinDir) == false) {
throw new UserError(ExitCodes.IO_ERROR, "Bin dir for " + pluginName + " is not a directory");
}
pluginPaths.add(pluginBinDir);
terminal.println(VERBOSE, "Removing: " + pluginBinDir);
}
terminal.println(VERBOSE, "Removing: " + pluginDir);
Path tmpPluginDir = env.pluginsFile().resolve(".removing-" + pluginName);
Files.move(pluginDir, tmpPluginDir, StandardCopyOption.ATOMIC_MOVE);
pluginPaths.add(tmpPluginDir);
IOUtils.rm(pluginPaths.toArray(new Path[pluginPaths.size()]));
}
}
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