1 files changed, 21 insertions, 0 deletions
diff --git a/src/Utilities/Path.kt b/src/Utilities/Path.kt
new file mode 100644
index 00000000..5498d36e
--- /dev/null
+++ b/src/Utilities/Path.kt
@@ -0,0 +1,21 @@
+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();
+    val targetPath = name.getCanonicalPath();
+
+    if (targetPath.startsWith(basePath)) {
+        return File(targetPath.substring(basePath.length() + 1))
+    } else {
+        return File(".." + File.separator + parent.getRelativePath(name))
+    }
+}
+
+fun File.appendExtension(extension: String) = File(getPath() + "." + extension)