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EclipseCdtFormatterStep.java
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EclipseCdtFormatterStep.java
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/*
* Copyright 2016-2024 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.extra.cpp;
import java.lang.reflect.InvocationTargetException;
import java.util.Properties;
import com.diffplug.spotless.FormatterFunc;
import com.diffplug.spotless.Jvm;
import com.diffplug.spotless.Provisioner;
import com.diffplug.spotless.extra.EquoBasedStepBuilder;
import dev.equo.solstice.p2.P2Model;
/**
* Formatter step which calls out to the Eclipse CDT formatter.
* <p>
* Eclipse-CDT <code>org.eclipse.core.contenttype.contentTypes</code>
* extension <code>cSource</code>, <code>cHeader</code>, <code>cxxSource</code> and <code>cxxHeader</code>.
* can handle: "c", "h", "C", "cpp", "cxx", "cc", "c++", "h", "hpp", "hh", "hxx", "inc"
*/
public final class EclipseCdtFormatterStep {
// prevent direct instantiation
private EclipseCdtFormatterStep() {}
private static final String NAME = "eclipse cdt formatter";
private static final Jvm.Support<String> JVM_SUPPORT = Jvm.<String> support(NAME).add(11, "10.7").add(17, "11.6");
public static String defaultVersion() {
return JVM_SUPPORT.getRecommendedFormatterVersion();
}
/** Provides default configuration */
public static EquoBasedStepBuilder createBuilder(Provisioner provisioner) {
return new EquoBasedStepBuilder(NAME, provisioner, defaultVersion(), EclipseCdtFormatterStep::apply) {
@Override
protected P2Model model(String version) {
var model = new P2Model();
addPlatformRepo(model, "4.26");
model.addP2Repo("https://download.eclipse.org/tools/cdt/releases/" + version + "/");
model.getInstall().add("org.eclipse.cdt.core");
return model;
}
};
}
private static FormatterFunc apply(EquoBasedStepBuilder.State state) throws Exception {
JVM_SUPPORT.assertFormatterSupported(state.getSemanticVersion());
Class<?> formatterClazz = state.getJarState().getClassLoader().loadClass("com.diffplug.spotless.extra.glue.cdt.EclipseCdtFormatterStepImpl");
var formatter = formatterClazz.getConstructor(Properties.class).newInstance(state.getPreferences());
var method = formatterClazz.getMethod("format", String.class);
return JVM_SUPPORT.suggestLaterVersionOnError(state.getSemanticVersion(),
input -> {
try {
return (String) method.invoke(formatter, input);
} catch (InvocationTargetException exceptionWrapper) {
Throwable throwable = exceptionWrapper.getTargetException();
Exception exception = (throwable instanceof Exception) ? (Exception) throwable : null;
throw (null == exception) ? exceptionWrapper : exception;
}
});
}
}