add warning for broken cfg

build.rs

@@ -1,15 +1,3 @@
-#[toml_cfg::toml_config]
-pub struct Config {
-    #[default("")]
-    wifi_ssid: &'static str,
-    #[default("")]
-    wifi_psk: &'static str,
-    #[default("")]
-    bot_token: &'static str,
-    #[default(0)]
-    owner_id: i64,
-}
-
 fn main() {
     // Check if the `cfg.toml` file exists and has been filled out.
     if !std::path::Path::new("cfg.toml").exists() {

src/config.rs

@@ -1,3 +1,5 @@
+use log::info;
+#[derive(Debug)]
 #[toml_cfg::toml_config]
 pub struct Config {
     #[default("")]
@@ -11,5 +13,11 @@ pub struct Config {
 }
 
 pub fn get_config() -> Config {
+    info!("got config {:#?}", CONFIG);
+
+    if CONFIG.wifi_ssid.is_empty() && CONFIG.wifi_psk.is_empty() {
+        panic!("WiFi SSID and PSK are not set\nif you use --target-dir the toml was not loaded, check this issue https://github.com/jamesmunns/toml-cfg/issues/7");
+    }
+
     CONFIG
 }