/
NativeCmdStep.java
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/
NativeCmdStep.java
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/*
* Copyright 2021 DiffPlug
*
* 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.diffplug.spotless.generic;
import java.io.File;
import java.io.IOException;
import java.io.Serializable;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import com.diffplug.spotless.FileSignature;
import com.diffplug.spotless.FormatterFunc;
import com.diffplug.spotless.FormatterStep;
import com.diffplug.spotless.ProcessRunner;
public class NativeCmdStep {
// prevent direct instantiation
private NativeCmdStep() {}
public static FormatterStep create(String name, File pathToExe, List<String> arguments) {
Objects.requireNonNull(name, "name");
Objects.requireNonNull(pathToExe, "pathToExe");
return FormatterStep.createLazy(name, () -> new State(FileSignature.signAsList(pathToExe), arguments), State::toFunc);
}
static class State implements Serializable {
private static final long serialVersionUID = 1L;
final FileSignature pathToExe;
final List<String> arguments;
State(FileSignature pathToExe, List<String> arguments) {
this.pathToExe = pathToExe;
this.arguments = arguments;
}
String format(ProcessRunner runner, String input) throws IOException, InterruptedException {
List<String> argumentsWithPathToExe = new ArrayList<>();
argumentsWithPathToExe.add(pathToExe.getOnlyFile().getAbsolutePath());
if (arguments != null) {
argumentsWithPathToExe.addAll(arguments);
}
return runner.exec(input.getBytes(StandardCharsets.UTF_8), argumentsWithPathToExe).assertExitZero(StandardCharsets.UTF_8);
}
FormatterFunc.Closeable toFunc() {
ProcessRunner runner = new ProcessRunner();
return FormatterFunc.Closeable.of(runner, this::format);
}
}
}