Read and write settings file

fiddyschmitt · Jun 30, 2024 · 2261bd9 · 2261bd9
1 parent 3bc13f6
commit 2261bd9
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Showing 2 changed files with 11 additions and 6 deletions.
diff --git a/SimpleKVM/Extensions.cs b/SimpleKVM/Extensions.cs
@@ -182,11 +182,13 @@ public static string SerializeToJson(this object obj)
 
         public static void WriteTextFile(string filename, string content)
         {
-            var existingContent = File.ReadAllText(filename);
-            if (existingContent != content)
+            if (File.Exists(filename) && File.ReadAllText(filename) == content)
             {
-                File.WriteAllText(filename, content);
+                //nothing's changed
+                return;
             }
+
+            File.WriteAllText(filename, content);
         }
 
         public static string ToString(this IEnumerable<string> list, string separator)

diff --git a/SimpleKVM/Form1.cs b/SimpleKVM/Form1.cs
@@ -309,9 +309,12 @@ private void BtnNewRule_Click(object sender, EventArgs e)
 
         private static void LoadRules()
         {
-            var rulesJson = File.ReadAllText(SettingsFilename);
-            var loadedRules = rulesJson?.DeserializJson<List<Rule>>() ?? [];
-            Rules.AddRange(loadedRules);
+            if (File.Exists(SettingsFilename))
+            {
+                var rulesJson = File.ReadAllText(SettingsFilename);
+                var loadedRules = rulesJson?.DeserializJson<List<Rule>>() ?? [];
+                Rules.AddRange(loadedRules);
+            }
         }
 
         private static void SaveRules()