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// 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.analysis.config;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.cmdline.LabelSyntaxException;
import com.google.devtools.build.lib.shell.ShellUtils;
import com.google.devtools.build.lib.shell.ShellUtils.TokenizationException;
import com.google.devtools.common.options.Converter;
import com.google.devtools.common.options.OptionsParsingException;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
/**
* --run_under options converter.
*/
public class RunUnderConverter implements Converter<RunUnder> {
@Override
public RunUnder convert(final String input) throws OptionsParsingException {
final List<String> runUnderList = new ArrayList<>();
try {
ShellUtils.tokenize(runUnderList, input);
} catch (TokenizationException e) {
throw new OptionsParsingException("Not a valid command prefix " + e.getMessage());
}
if (runUnderList.isEmpty()) {
throw new OptionsParsingException("Empty command");
}
final String runUnderCommand = runUnderList.get(0);
if (runUnderCommand.startsWith("//")) {
try {
final Label runUnderLabel = Label.parseAbsolute(runUnderCommand);
return new RunUnderLabel(input, runUnderLabel, runUnderList);
} catch (LabelSyntaxException e) {
throw new OptionsParsingException("Not a valid label " + e.getMessage());
}
} else {
return new RunUnderCommand(input, runUnderCommand, runUnderList);
}
}
private static final class RunUnderLabel implements RunUnder {
private final String input;
private final Label runUnderLabel;
private final List<String> runUnderList;
public RunUnderLabel(String input, Label runUnderLabel, List<String> runUnderList) {
this.input = input;
this.runUnderLabel = runUnderLabel;
this.runUnderList = new ArrayList<>(runUnderList.subList(1, runUnderList.size()));
}
@Override public String getValue() { return input; }
@Override public Label getLabel() { return runUnderLabel; }
@Override public String getCommand() { return null; }
@Override public List<String> getOptions() { return runUnderList; }
@Override public String toString() { return input; }
@Override
public boolean equals(Object other) {
if (this == other) {
return true;
} else if (other instanceof RunUnderLabel) {
RunUnderLabel otherRunUnderLabel = (RunUnderLabel) other;
return Objects.equals(input, otherRunUnderLabel.input)
&& Objects.equals(runUnderLabel, otherRunUnderLabel.runUnderLabel)
&& Objects.equals(runUnderList, otherRunUnderLabel.runUnderList);
} else {
return false;
}
}
@Override
public int hashCode() {
return Objects.hash(input, runUnderLabel, runUnderList);
}
}
private static final class RunUnderCommand implements RunUnder {
private final String input;
private final String runUnderCommand;
private final List<String> runUnderList;
public RunUnderCommand(String input, String runUnderCommand, List<String> runUnderList) {
this.input = input;
this.runUnderCommand = runUnderCommand;
this.runUnderList = new ArrayList<>(runUnderList.subList(1, runUnderList.size()));
}
@Override public String getValue() { return input; }
@Override public Label getLabel() { return null; }
@Override public String getCommand() { return runUnderCommand; }
@Override public List<String> getOptions() { return runUnderList; }
@Override public String toString() { return input; }
@Override
public boolean equals(Object other) {
if (this == other) {
return true;
} else if (other instanceof RunUnderCommand) {
RunUnderCommand otherRunUnderCommand = (RunUnderCommand) other;
return Objects.equals(input, otherRunUnderCommand.input)
&& Objects.equals(runUnderCommand, otherRunUnderCommand.runUnderCommand)
&& Objects.equals(runUnderList, otherRunUnderCommand.runUnderList);
} else {
return false;
}
}
@Override
public int hashCode() {
return Objects.hash(input, runUnderCommand, runUnderList);
}
}
@Override
public String getTypeDescription() {
return "a prefix in front of command";
}
}
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