parse all locales in dir in compile time

Cargo.toml

@@ -18,6 +18,7 @@ egui_extras = { version = "0.23.0", features = ["all_loaders"] }
 egui_file = "0.11.0"
 env_logger = "0.11.1"
 exe = "0.5.6"
+include_dir = "0.7.3"
 serde = "1.0.190"
 serde_derive = "1.0.190"
 serde_json = "1.0.108"

src/localization.rs

@@ -1,16 +1,25 @@
+use include_dir::{include_dir, Dir};
 use std::collections::HashMap;
 
+const LOCALES: Dir<'_> = include_dir!("./locale");
+
 #[static_init::dynamic]
 pub static mut LOCALE: Localization = {
   let locale = sys_locale::get_locale().unwrap_or("en-US".to_owned());
   Localization::new(locale)
 };
 
 #[static_init::dynamic]
-static TRANSLATIONS: HashMap<String, &'static str> = HashMap::from([
-  ("en-US".to_owned(), std::include_str!("../locale/en-US.json")),
-  ("ru-RU".to_owned(), std::include_str!("../locale/ru-RU.json")),
-]);
+static TRANSLATIONS: HashMap<String, &'static str> = {
+  let mut map = HashMap::<String, &'static str>::new();
+  for file in LOCALES.files() {
+    map.insert(
+      file.path().file_stem().unwrap().to_str().unwrap().to_owned(),
+      file.contents_utf8().unwrap(),
+    );
+  }
+  map
+};
 
 macro_rules! t {
   ($l:expr) => {