org.openrewrite.yaml.style.Autodetect Maven / Gradle / Ivy
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/*
* Copyright 2020 the original author or authors.
*
* 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
*
* https://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 org.openrewrite.yaml.style;
import org.jspecify.annotations.Nullable;
import org.openrewrite.Tree;
import org.openrewrite.style.GeneralFormatStyle;
import org.openrewrite.yaml.YamlIsoVisitor;
import org.openrewrite.yaml.search.FindIndentYamlVisitor;
import org.openrewrite.yaml.tree.Yaml;
public class Autodetect {
public static IndentsStyle tabsAndIndents(Yaml yaml, IndentsStyle orElse) {
FindIndentYamlVisitor findIndent = new FindIndentYamlVisitor<>(0);
//noinspection ConstantConditions
findIndent.visit(yaml, null);
return findIndent.nonZeroIndents() > 0 ?
new IndentsStyle(findIndent.getMostCommonIndent()) :
orElse;
}
public static GeneralFormatStyle generalFormat(Yaml yaml) {
FindLineFormatJavaVisitor findLineFormat = new FindLineFormatJavaVisitor<>();
//noinspection ConstantConditions
findLineFormat.visit(yaml, null);
return new GeneralFormatStyle(!findLineFormat.isIndentedWithLFNewLines());
}
private static class FindLineFormatJavaVisitor extends YamlIsoVisitor
{
private int linesWithCRLFNewLines = 0;
private int linesWithLFNewLines = 0;
public boolean isIndentedWithLFNewLines() {
return linesWithLFNewLines >= linesWithCRLFNewLines;
}
@Override
public @Nullable Yaml visit(@Nullable Tree tree, P p) {
Yaml y = super.visit(tree, p);
if (y != null) {
if (y.getPrefix().startsWith("\r\n")) {
linesWithCRLFNewLines++;
} else if (y.getPrefix().startsWith("\n")) {
linesWithLFNewLines++;
}
}
return y;
}
}
}