# HG changeset patch
# User Mike Becker <universe@uap-core.de>
# Date 1757861105 -7200
# Node ID 9d7f34e06d8d511e3a8a1fd4190c0cd33ed7c518
# Parent  698541f09380d771e81c8255ff4cfa9c5a51e163
hotfix incorrect diff for descriptions/comments

relates to #719

diff -r 698541f09380 -r 9d7f34e06d8d src/main/kotlin/de/uapcore/lightpit/servlet/FeedServlet.kt
--- a/src/main/kotlin/de/uapcore/lightpit/servlet/FeedServlet.kt	Sun Sep 14 16:37:47 2025 +0200
+++ b/src/main/kotlin/de/uapcore/lightpit/servlet/FeedServlet.kt	Sun Sep 14 16:45:05 2025 +0200
@@ -59,18 +59,18 @@
         .build()
     )
 
-    fun calculateDiff(earlier: String, later: String): String {
-        val diff = diffGenerator.generateDiffRows(
-            listOf(earlier.replace("\r", "")),
-            listOf(later.replace("\r", ""))
-        )[0]
-        return when (diff.tag) {
-            DiffRow.Tag.CHANGE -> diff.oldLine
-            DiffRow.Tag.DELETE -> "<strike style=\"color:red\">${diff.oldLine}</strike>"
-            DiffRow.Tag.INSERT -> "<i style=\"color: green\">${diff.newLine}</i>"
-            DiffRow.Tag.EQUAL -> diff.oldLine
-        }
-    }
+    fun calculateDiff(earlier: String, later: String): String =
+        diffGenerator.generateDiffRows(
+            earlier.replace("\r", "").split("\n"),
+            later.replace("\r", "").split("\n")
+        ).joinToString(separator = "\n", transform = { diff ->
+            when (diff.tag) {
+                DiffRow.Tag.CHANGE -> diff.oldLine
+                DiffRow.Tag.DELETE -> "<strike style=\"color:red\">${diff.oldLine}</strike>"
+                DiffRow.Tag.INSERT -> "<i style=\"color: green\">${diff.newLine}</i>"
+                DiffRow.Tag.EQUAL -> diff.oldLine
+            }
+        })
 
     private fun fullContent(data: IssueCommentHistoryEntry) =
         CommentDiff(