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// Copyright 2017 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.devtools.build.lib.analysis.NoBuildEvent;
import com.google.devtools.build.lib.runtime.BlazeCommand;
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.build.lib.util.ResourceFileLoader;
import com.google.devtools.build.lib.util.io.OutErr;
import com.google.devtools.common.options.OptionsParser;
import com.google.devtools.common.options.OptionsProvider;
import java.io.IOException;
/** A command that prints an embedded license text. */
@Command(
name = "license",
allowResidue = true,
mustRunInWorkspace = false,
shortDescription = "Prints the license of this software.",
help = "Prints the license of this software.\n\n%{options}"
)
public class LicenseCommand implements BlazeCommand {
public static boolean isSupported() {
return ResourceFileLoader.resourceExists(LicenseCommand.class, "LICENSE");
}
@Override
public ExitCode exec(CommandEnvironment env, OptionsProvider options) {
env.getEventBus().post(new NoBuildEvent());
OutErr outErr = env.getReporter().getOutErr();
outErr.printOutLn("Licenses of all components included in this binary:\n");
try {
outErr.printOutLn(ResourceFileLoader.loadResource(this.getClass(), "LICENSE"));
} catch (IOException e) {
throw new IllegalStateException(
"I/O error while trying to print 'LICENSE' resource: " + e.getMessage(), e);
}
return ExitCode.SUCCESS;
}
@Override
public void editOptions(CommandEnvironment env, OptionsParser optionsParser) {}
}
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