flutter: use build.rs

Signed-off-by: Yuki Kishimoto <[email protected]>

bindings/nostr-sdk-flutter/justfile

@@ -1,10 +1,4 @@
-#!/usr/bin/env just --justfile
-
-init:
-    cargo install flutter_rust_bridge_codegen
+set windows-shell := ["powershell.exe", "-NoLogo", "-Command"]
 
 build:
     cd rust && cargo build
-
-generate:
-    flutter_rust_bridge_codegen generate

bindings/nostr-sdk-flutter/rust/build.rs

@@ -0,0 +1,19 @@
+// Copyright (c) 2022-2023 Yuki Kishimoto
+// Copyright (c) 2023-2024 Rust Nostr Developers
+// Distributed under the MIT software license
+
+use lib_flutter_rust_bridge_codegen::codegen;
+use lib_flutter_rust_bridge_codegen::codegen::Config;
+
+fn main() {
+    println!("cargo:rerun-if-changed=src/api");
+
+    // Execute code generator with auto-detected config
+    codegen::generate(
+        Config::from_config_file("../flutter_rust_bridge.yaml")
+            .unwrap()
+            .unwrap(),
+        Default::default(),
+    )
+    .unwrap();
+}