clean up filesystem by moving get_interactive_confirmation into util.rs

crates/nu-command/src/filesystem/util.rs

@@ -3,6 +3,9 @@ use std::path::{Path, PathBuf};
 use nu_path::canonicalize_with;
 use nu_protocol::ShellError;
 
+use dialoguer::Input;
+use std::error::Error;
+
 #[derive(Default)]
 pub struct FileStructure {
     pub resources: Vec<Resource>,
@@ -79,3 +82,27 @@ pub struct Resource {
 }
 
 impl Resource {}
+
+pub fn get_interactive_confirmation(prompt: String) -> Result<bool, Box<dyn Error>> {
+    let input = Input::new()
+        .with_prompt(prompt)
+        .validate_with(|c_input: &String| -> Result<(), String> {
+            if c_input.len() == 1
+                && (c_input == "y" || c_input == "Y" || c_input == "n" || c_input == "N")
+            {
+                Ok(())
+            } else if c_input.len() > 1 {
+                Err("Enter only one letter (Y/N)".to_string())
+            } else {
+                Err("Input not valid".to_string())
+            }
+        })
+        .default("Y/N".into())
+        .interact_text()?;
+
+    if input == "y" || input == "Y" {
+        Ok(true)
+    } else {
+        Ok(false)
+    }
+}