use rust-i18n fallbake

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "salvo-cli"
-version = "0.1.17"
+version = "0.1.18"
 edition = "2021"
 authors = ["Fankai Liu  [email protected]"]
 keywords = ["salvo", "cli","template"]

src/i18n.rs

@@ -1,8 +1,3 @@
-const SUPPORTED_LANGUAGES: [&str; 17] = [
-    "en", "zh_CN", "zh_TW", "fr", "ja", "es", "de", "ru", 
-    "it", "pt", "ko", "no", "is", "uk", "th", "el", "da"
-];
-
 pub fn set_locale() {
     match get_language() {
         Some(lang) => {
@@ -13,17 +8,12 @@ pub fn set_locale() {
         }
     }
 }
-
 fn get_language() -> Option<String> {
     match std::env::var("LANG") {
         Ok(lang) => {
-            let language = lang.split('.').next()?.to_string();
-            if SUPPORTED_LANGUAGES.contains(&language.as_str()) {
-                Some(language)
-            } else {
-                None
-            }
+            let language = lang.split('.').next();
+            language.map(|s| s.to_string())
         }
         Err(_) => None,
     }
-}
+}

src/main.rs

@@ -4,9 +4,9 @@ use clap::Parser;
 mod utils;
 use i18n::set_locale;
 mod i18n;
-rust_i18n::i18n!("locales");
+rust_i18n::i18n!("locales", fallback = "en");
 #[derive(Parser, Debug)]
-#[clap(version = "0.1.17", author = "Fankai liu <[email protected]>")]
+#[clap(version = "0.1.18", author = "Fankai liu <[email protected]>")]
 struct Opts {
     #[clap(subcommand)]
     subcmd: SubCommand,