keygen: add more mnemonic language support (#12944) (#12956)

(cherry picked from commit 4451042c76)

Co-authored-by: guanqun <guanqun.lu@gmail.com>

clap-utils/src/keypair.rs

@@ -298,7 +298,24 @@ pub fn keypair_from_seed_phrase(
         keypair_from_seed_phrase_and_passphrase(&seed_phrase, &passphrase)?
     } else {
         let sanitized = sanitize_seed_phrase(seed_phrase);
-        let mnemonic = Mnemonic::from_phrase(&sanitized, Language::English)?;
+        let parse_language_fn = || {
+            for language in &[
+                Language::English,
+                Language::ChineseSimplified,
+                Language::ChineseTraditional,
+                Language::Japanese,
+                Language::Spanish,
+                Language::Korean,
+                Language::French,
+                Language::Italian,
+            ] {
+                if let Ok(mnemonic) = Mnemonic::from_phrase(&sanitized, *language) {
+                    return Ok(mnemonic);
+                }
+            }
+            Err("Can't get mnemonic from seed phrases")
+        };
+        let mnemonic = parse_language_fn()?;
         let passphrase = prompt_passphrase(&passphrase_prompt)?;
         let seed = Seed::new(&mnemonic, &passphrase);
         keypair_from_seed(seed.as_bytes())?

keygen/src/keygen.rs

@@ -270,6 +270,15 @@ fn main() -> Result<(), Box<dyn error::Error>> {
                         .takes_value(true)
                         .help("Specify the number of words that will be present in the generated seed phrase"),
                 )
+                .arg(
+                    Arg::with_name("language")
+                        .long("language")
+                        .possible_values(&["english", "chinese-simplified", "chinese-traditional", "japanese", "spanish", "korean", "french", "italian"])
+                        .default_value("english")
+                        .value_name("LANGUAGE")
+                        .takes_value(true)
+                        .help("Specify the mnemonic lanaguage that will be present in the generated seed phrase"),
+                )
                 .arg(
                     Arg::with_name("no_passphrase")
                         .long("no-passphrase")
@@ -430,7 +439,18 @@ fn do_main(matches: &ArgMatches<'_>) -> Result<(), Box<dyn error::Error>> {
 
             let word_count = value_t!(matches.value_of("word_count"), usize).unwrap();
             let mnemonic_type = MnemonicType::for_word_count(word_count)?;
-            let mnemonic = Mnemonic::new(mnemonic_type, Language::English);
+            let language = match matches.value_of("language").unwrap() {
+                "english" => Language::English,
+                "chinese-simplified" => Language::ChineseSimplified,
+                "chinese-traditional" => Language::ChineseTraditional,
+                "japanese" => Language::Japanese,
+                "spanish" => Language::Spanish,
+                "korean" => Language::Korean,
+                "french" => Language::French,
+                "italian" => Language::Italian,
+                _ => unreachable!(),
+            };
+            let mnemonic = Mnemonic::new(mnemonic_type, language);
             let passphrase = if matches.is_present("no_passphrase") {
                 NO_PASSPHRASE.to_string()
             } else {