Create config directory if it does not exist (#625)

Signed-off-by: nibon7 <nibon7@163.com>

src/main.rs

@@ -265,6 +265,13 @@ fn main() -> Result<()> {
         // Load config startup file
         if let Some(mut config_path) = nu_path::config_dir() {
             config_path.push("nushell");
+
+            // Create config directory if it does not exist
+            if !config_path.exists() {
+                if let Err(err) = std::fs::create_dir_all(&config_path) {
+                    eprintln!("Failed to create config directory: {}", err);
+                }
+            } else {
                 config_path.push("config.nu");
 
                 if config_path.exists() {
@@ -277,6 +284,7 @@ fn main() -> Result<()> {
                     }
                 }
             }
+        }
 
         // Get the config
         let config = match stack.get_config() {