config: Rename dur_file to dur (closes #1032)

Signed-off-by: AnErrupTion <anerruption@disroot.org>

src/config/migrator.zig

@@ -74,16 +74,27 @@ pub fn configFieldHandler(_: std.mem.Allocator, field: ini.IniField) ?ini.IniFie
     }
 
     if (std.mem.eql(u8, field.key, "animation")) {
-        // The option now uses a string (which then gets converted into an enum) instead of an integer
-        // It also combines the previous "animate" and "animation" options
-        const animation = std.fmt.parseInt(u8, field.value, 10) catch return field;
+        string_conversion: {
+            // The option now uses a string (which then gets converted into an enum) instead of an integer
+            // It also combines the previous "animate" and "animation" options
+            const animation = std.fmt.parseInt(u8, field.value, 10) catch break :string_conversion;
+            var mapped_field = field;
+
+            mapped_field.value = switch (animation) {
+                0 => "doom",
+                1 => "matrix",
+                else => "none",
+            };
+
+            return mapped_field;
+        }
+
+        // 'dur_file' was renamed to 'dur'
         var mapped_field = field;
 
-        mapped_field.value = switch (animation) {
-            0 => "doom",
-            1 => "matrix",
-            else => "none",
-        };
+        if (std.mem.eql(u8, mapped_field.value, "dur_file")) {
+            mapped_field.value = "dur";
+        }
 
         return mapped_field;
     }

src/enums.zig

@@ -6,7 +6,7 @@ pub const Animation = enum {
     matrix,
     colormix,
     gameoflife,
-    dur_file,
+    dur,
     lua,
 };
 

src/main.zig

@@ -1086,7 +1086,7 @@ pub fn main(init: std.process.Init) !void {
             );
             animation = game_of_life.widget();
         },
-        .dur_file => {
+        .dur => {
             var dur = try DurFile.init(
                 state.allocator,
                 state.io,