Add Utils to curl struct

src/curl.zig

@@ -71,3 +71,13 @@ pub fn setopt(
 ) c_api.CURLcode {
     return self.setopt_raw(@intFromEnum(option), args);
 }
+
+pub const Utils = struct {
+	const std = @import("std");
+
+	pub fn array_list_append(ptr: [*]u8, size: usize, nmemb: usize, userdata: *std.ArrayList(u8)) callconv(.C) usize {
+	    _ = size;
+	    userdata.appendSlice(ptr[0..nmemb]) catch return 0;
+	    return nmemb;
+	}
+};

src/home.zig

@@ -4,12 +4,6 @@ const rl = raylib.rl;
 const AppState = @import("state.zig");
 const Curl = @import("curl.zig");
 
-fn curlWriteHandler(ptr: [*]u8, size: usize, nmemb: usize, userdata: *std.ArrayList(u8)) callconv(.C) usize {
-    _ = size;
-    userdata.appendSlice(ptr[0..nmemb]) catch return 0;
-    return nmemb;
-}
-
 fn fetchThread(state: *AppState) !void {
     std.debug.print("[home/fetchThread] Started\n", .{});
     defer std.debug.print("[home/fetchThread] Ended\n", .{});
@@ -46,7 +40,7 @@ fn fetchThread(state: *AppState) !void {
 
         var result = std.ArrayList(u8).init(allocator);
         defer result.deinit();
-        _ = curl.setopt(.write_function, .{curlWriteHandler});
+        _ = curl.setopt(.write_function, .{Curl.Utils.array_list_append});
         _ = curl.setopt(.write_data, .{&result});
 
         const code = curl.perform();