🐞 fix: cmd error with gbk (#114)

* 🐞 fix: cmd error with gbk
* 🎈 perf: try gbk only on windows

easytier/src/utils.rs

@@ -225,6 +225,22 @@ pub fn init_logger(
     Ok(ret_sender)
 }
 
+#[cfg(target_os = "windows")]
+pub fn utf8_or_gbk_to_string(s: &[u8]) -> String {
+    use encoding::{all::GBK, DecoderTrap, Encoding};
+    if let Ok(utf8_str) = String::from_utf8(s.to_vec()) {
+        utf8_str
+    } else {
+        // 如果解码失败，则尝试使用GBK解码
+        if let Ok(gbk_str) = GBK.decode(&s, DecoderTrap::Strict) {
+            gbk_str
+        } else {
+            String::from_utf8_lossy(s).to_string()
+        }
+    }
+}
+
+
 #[cfg(test)]
 mod tests {
     use crate::common::config::{self};