Add input macro similar to pythons input function and replace previous usages of input acquisition

src/main.rs

@@ -119,6 +119,22 @@ enum OldVersionPolicy {
   Delete,
 }
 
+#[macro_export]
+macro_rules! input {
+  ($prompt: expr) => {{
+    print!("{}", $prompt);
+    io::stdout().flush().expect("failed to flush stdout");
+    let mut buf = String::new();
+    io::stdin()
+      .read_line(&mut buf)
+      .expect("failed to read stdin");
+    buf.trim().to_string()
+  }};
+  () => {
+    input!()
+  };
+}
+
 fn main() -> Result<(), String> {
   let args = Args::parse();
 
@@ -250,13 +266,7 @@ fn main() -> Result<(), String> {
       }
 
       if !no_confirm {
-        log!(logger, "Continue? [Y|n] ");
+        match input!("Continue? [Y|n]").to_lowercase().as_str() {
-        std::io::stdout().flush().expect("failed to flush stdout");
-        let mut buffer = String::new();
-        std::io::stdin()
-          .read_line(&mut buffer)
-          .expect("failed to read stdin");
-        match buffer.to_lowercase().trim() {
           "n" | "no" => {
             log!(logger, "Aborting...");
             return Ok(());
@@ -343,13 +353,16 @@ fn main() -> Result<(), String> {
             .any(|entry| entry.file_name() == file_name)
         {
           //TODO ask user whether they want to override, unless silent flag is set
-          let duplication_notification = format!("A file with the name {} already exists in {}", file_name.to_string_lossy(), working_directory.to_string_lossy());
+          let duplication_notification = format!(
-          
+            "A file with the name {} already exists in {}",
+            file_name.to_string_lossy(),
+            working_directory.to_string_lossy()
+          );
+
           if !args.quiet {
             print!("{duplication_notification}. Do you want to replace it? [N|y]");
-            
           }
-          
+
           return Err(format!(
           "A file with the name {} already exists in {}. You can override it with --override or -f",
           file_name.to_string_lossy(),
@@ -397,14 +410,6 @@ fn main() -> Result<(), String> {
   Ok(())
 }
 
-fn get_user_input<S>(prompt: S) -> String where S: Into<String> {
-  print!("{}", prompt.into());
-  io::stdout().flush().expect("failed to flush stdout");
-  let mut buf = String::new();
-  io::stdin().read_line(&mut buf).expect("failed to read stdin");
-  buf
-}
-
 fn require_non_empty_servers(servers: &[Server]) -> Result<(), String> {
   if servers.is_empty() {
     Err("You did not provide any servers for this operation. Please see --help".to_string())