| // Copyright 2014 The Bazel Authors. 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.devtools.build.lib.runtime.commands; |
| |
| import com.google.common.base.Joiner; |
| import com.google.devtools.build.lib.events.Event; |
| import com.google.devtools.build.lib.flags.InvocationPolicyEnforcer; |
| import com.google.devtools.build.lib.runtime.BlazeCommand; |
| import com.google.devtools.build.lib.runtime.BlazeCommandUtils; |
| import com.google.devtools.build.lib.runtime.BlazeRuntime; |
| import com.google.devtools.build.lib.runtime.Command; |
| import com.google.devtools.build.lib.runtime.CommandEnvironment; |
| import com.google.devtools.build.lib.util.ExitCode; |
| import com.google.devtools.common.options.Option; |
| import com.google.devtools.common.options.OptionsBase; |
| import com.google.devtools.common.options.OptionsParser; |
| import com.google.devtools.common.options.OptionsParsingException; |
| import com.google.devtools.common.options.OptionsProvider; |
| |
| import java.util.Collection; |
| import java.util.List; |
| |
| /** |
| * The 'blaze canonicalize-flags' command. |
| */ |
| @Command(name = "canonicalize-flags", |
| options = { CanonicalizeCommand.Options.class }, |
| allowResidue = true, |
| mustRunInWorkspace = false, |
| shortDescription = "Canonicalizes a list of %{product} options.", |
| help = "This command canonicalizes a list of %{product} options. Don't forget to prepend " |
| + " '--' to end option parsing before the flags to canonicalize.\n" |
| + "%{options}") |
| public final class CanonicalizeCommand implements BlazeCommand { |
| |
| public static class Options extends OptionsBase { |
| @Option(name = "for_command", |
| defaultValue = "build", |
| category = "misc", |
| help = "The command for which the options should be canonicalized.") |
| public String forCommand; |
| |
| @Option(name = "invocation_policy", |
| defaultValue = "", |
| help = "Applies an invocation policy to the options to be canonicalized.") |
| public String invocationPolicy; |
| } |
| |
| @Override |
| public ExitCode exec(CommandEnvironment env, OptionsProvider options) { |
| BlazeRuntime runtime = env.getRuntime(); |
| Options canonicalizeOptions = options.getOptions(Options.class); |
| String commandName = canonicalizeOptions.forCommand; |
| BlazeCommand command = runtime.getCommandMap().get(commandName); |
| if (command == null) { |
| env.getReporter().handle(Event.error("Not a valid command: '" + commandName |
| + "' (should be one of " + Joiner.on(", ").join(runtime.getCommandMap().keySet()) + ")")); |
| return ExitCode.COMMAND_LINE_ERROR; |
| } |
| Collection<Class<? extends OptionsBase>> optionsClasses = |
| BlazeCommandUtils.getOptions( |
| command.getClass(), runtime.getBlazeModules(), runtime.getRuleClassProvider()); |
| try { |
| |
| OptionsParser parser = OptionsParser.newOptionsParser(optionsClasses); |
| parser.setAllowResidue(false); |
| parser.parse(options.getResidue()); |
| |
| InvocationPolicyEnforcer invocationPolicyEnforcer = InvocationPolicyEnforcer.create( |
| canonicalizeOptions.invocationPolicy); |
| invocationPolicyEnforcer.enforce(parser, commandName); |
| |
| List<String> result = parser.canonicalize(); |
| |
| for (String piece : result) { |
| env.getReporter().getOutErr().printOutLn(piece); |
| } |
| } catch (OptionsParsingException e) { |
| env.getReporter().handle(Event.error(e.getMessage())); |
| return ExitCode.COMMAND_LINE_ERROR; |
| } |
| return ExitCode.SUCCESS; |
| } |
| |
| @Override |
| public void editOptions(CommandEnvironment env, OptionsParser optionsParser) {} |
| } |