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package org.jetbrains.dokka
import java.io.*
fun File.getRelativePath(name: File): File {
val parent = getParentFile()
if (parent == null)
throw IOException("No common directory");
val basePath = getCanonicalPath() + File.separator;
val targetPath = name.getCanonicalPath();
if (targetPath.startsWith(basePath)) {
return File(targetPath.substring(basePath.length()))
} else {
return File(".." + File.separator + parent.getRelativePath(name))
}
}
fun File.appendExtension(extension: String) = if (extension.isEmpty()) this else File(getPath() + "." + extension)
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