org.jetbrains.kotlin.js.sourceMap.SourceFilePathResolver Maven / Gradle / Ivy
/*
* Copyright 2010-2017 JetBrains s.r.o.
*
* 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 org.jetbrains.kotlin.js.sourceMap;
import com.intellij.openapi.util.text.StringUtil;
import org.jetbrains.annotations.NotNull;
import java.io.File;
import java.io.IOException;
import java.util.*;
public class SourceFilePathResolver {
@NotNull
private final Set sourceRoots;
@NotNull
private final Map cache = new HashMap<>();
public SourceFilePathResolver(@NotNull List sourceRoots) {
this.sourceRoots = new HashSet<>();
for (File sourceRoot : sourceRoots) {
this.sourceRoots.add(sourceRoot.getAbsoluteFile());
}
}
@NotNull
public String getPathRelativeToSourceRoots(@NotNull File file) throws IOException {
String path = cache.get(file);
if (path == null) {
path = calculatePathRelativeToSourceRoots(file);
cache.put(file, path);
}
return path;
}
private String calculatePathRelativeToSourceRoots(@NotNull File file) throws IOException {
List parts = new ArrayList<>();
File currentFile = file.getCanonicalFile();
while (currentFile != null) {
if (sourceRoots.contains(currentFile)) {
if (parts.isEmpty()) {
break;
}
Collections.reverse(parts);
return StringUtil.join(parts, File.separator);
}
parts.add(currentFile.getName());
currentFile = currentFile.getParentFile();
}
return file.getName();
}
}