121 lines
4.8 KiB
Java
121 lines
4.8 KiB
Java
/*
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* Copyright (C) 2018 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.copybara;
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import static com.google.copybara.exception.ValidationException.checkCondition;
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import com.beust.jcommander.Parameters;
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import com.google.common.base.Preconditions;
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import com.google.common.collect.ImmutableList;
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import com.google.common.collect.Iterables;
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import com.google.copybara.config.Config;
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import com.google.copybara.config.ConfigValidator;
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import com.google.copybara.config.Migration;
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import com.google.copybara.config.ValidationResult;
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import com.google.copybara.exception.RepoException;
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import com.google.copybara.exception.ValidationException;
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import com.google.copybara.util.ExitCode;
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import com.google.copybara.util.console.Console;
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import java.io.IOException;
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import java.nio.file.Path;
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import java.util.function.Consumer;
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/**
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* Executes the migration for the given config.
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*/
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@Parameters(separators = "=", commandDescription = "Executes the migration for the given config.")
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public class MigrateCmd implements CopybaraCmd {
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private final ConfigValidator configValidator;
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private final Consumer<Migration> migrationRanConsumer;
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private final ConfigLoaderProvider configLoaderProvider;
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MigrateCmd(ConfigValidator configValidator, Consumer<Migration> migrationRanConsumer,
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ConfigLoaderProvider configLoaderProvider) {
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this.configValidator = Preconditions.checkNotNull(configValidator);
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this.migrationRanConsumer = Preconditions.checkNotNull(migrationRanConsumer);
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this.configLoaderProvider = Preconditions.checkNotNull(configLoaderProvider);
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}
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@Override
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public ExitCode run(CommandEnv commandEnv)
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throws RepoException, ValidationException, IOException {
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ConfigFileArgs configFileArgs = commandEnv.parseConfigFileArgs(this,
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/*useSourceRef*/true);
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ImmutableList<String> sourceRefs = configFileArgs.getSourceRefs();
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run(
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commandEnv.getOptions(),
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configLoaderProvider.newLoader(
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configFileArgs.getConfigPath(),
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sourceRefs.size() == 1 ? Iterables.getOnlyElement(sourceRefs) : null),
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configFileArgs.getWorkflowName(),
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commandEnv.getWorkdir(),
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sourceRefs);
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return ExitCode.SUCCESS;
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}
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/**
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* Runs the migration specified by {@code migrationName}.
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*/
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private void run(Options options, ConfigLoader configLoader, String migrationName,
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Path workdir, ImmutableList<String> sourceRefs)
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throws RepoException, ValidationException, IOException {
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Config config = loadConfig(options, configLoader, migrationName);
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Migration migration = config.getMigration(migrationName);
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if (!options.get(WorkflowOptions.class).isReadConfigFromChange()) {
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this.migrationRanConsumer.accept(migration);
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migration.run(workdir, sourceRefs);
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return;
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}
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checkCondition(configLoader.supportsLoadForRevision(),
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"%s flag is not supported for the origin/config file path",
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WorkflowOptions.READ_CONFIG_FROM_CHANGE);
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// A safeguard, mirror workflows are not supported in the service anyway
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checkCondition(migration instanceof Workflow,
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"Flag --read-config-from-change is not supported for non-workflow migrations: %s",
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migrationName);
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migrationRanConsumer.accept(migration);
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@SuppressWarnings("unchecked")
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Workflow<? extends Revision, ? extends Revision> workflow =
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(Workflow<? extends Revision, ? extends Revision>) migration;
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new ReadConfigFromChangeWorkflow<>(workflow, options, configLoader, configValidator)
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.run(workdir, sourceRefs);
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}
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private Config loadConfig(Options options, ConfigLoader configLoader, String migrationName)
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throws IOException, ValidationException {
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GeneralOptions generalOptions = options.get(GeneralOptions.class);
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Console console = generalOptions.console();
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Config config = configLoader.load(console);
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console.progress("Validating configuration");
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ValidationResult result = configValidator.validate(config, migrationName);
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if (!result.hasErrors()) {
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return config;
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}
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result.getErrors().forEach(console::error);
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console.error("Configuration is invalid.");
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throw new ValidationException("Error validating configuration: Configuration is invalid.");
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}
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@Override
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public String name() {
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return "migrate";
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}
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}
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