From d055060483ee79eafaa5729a2ee09c46e8028fe3 Mon Sep 17 00:00:00 2001
From: Abdelilah El Aissaoui <aeab13@gmail.com>
Date: Thu, 7 Apr 2022 22:57:32 +0200
Subject: [PATCH] Fixed crash on empty graph

---
 src/main/kotlin/app/git/TabState.kt              | 2 +-
 src/main/kotlin/app/git/graph/GraphCommitList.kt | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/main/kotlin/app/git/TabState.kt b/src/main/kotlin/app/git/TabState.kt
index 69a070a..0d302ac 100644
--- a/src/main/kotlin/app/git/TabState.kt
+++ b/src/main/kotlin/app/git/TabState.kt
@@ -75,7 +75,7 @@ class TabState @Inject constructor(
                     ex.printStackTrace()
 
                     if (showError)
-                        errorsManager.addError(newErrorNow(ex, ex.localizedMessage))
+                        errorsManager.addError(newErrorNow(ex, ex.message.orEmpty()))
                 } finally {
                     _processing.value = false
 
diff --git a/src/main/kotlin/app/git/graph/GraphCommitList.kt b/src/main/kotlin/app/git/graph/GraphCommitList.kt
index f29b89e..28233fe 100644
--- a/src/main/kotlin/app/git/graph/GraphCommitList.kt
+++ b/src/main/kotlin/app/git/graph/GraphCommitList.kt
@@ -351,6 +351,8 @@ class GraphCommitList : RevCommitList<GraphNode>() {
     }
 
     fun calcMaxLine() {
-        maxLine = this.maxOf { it.lane.position }
+        if(this.isNotEmpty()) {
+            maxLine = this.maxOf { it.lane.position }
+        }
     }
 }
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