removed output mode

src/model.rs

@@ -40,7 +40,7 @@ impl Config {
 
         let cfg: crate::config::Config = serde_yaml::from_str(&data)?;
         Ok(Self {
-            output: Arc::new(Mutex::new(output::Controller::new("==> ".to_owned(), 10))),
+            output: Arc::new(Mutex::new(output::Controller::new("==> ".to_owned()))),
             chains: cfg.chains,
             env: if let Some(e) = cfg.env {
                 e

src/output.rs

@@ -1,54 +1,30 @@
-use std::{
-    error::Error,
-    io::Write,
-    result::Result,
-};
+use std::{error::Error, io::Write, result::Result};
 
-use crossterm::{
-    style::Print,
-    terminal,
-    QueueableCommand,
-};
+use crossterm::{style::Print, QueueableCommand};
 
 pub(crate) struct Controller {
+    pending_lines: Vec<String>,
     prefix: String,
-    max_lines: usize,
-    lines: Vec<String>,
-    drawn_lines: usize,
 }
+
 impl Controller {
-    pub fn new(prefix: String, max: usize) -> Self {
+    pub fn new(prefix: String) -> Self {
         Self {
             prefix,
-            max_lines: max,
-            drawn_lines: 0,
-            lines: Vec::<String>::with_capacity(max + 1),
+            pending_lines: vec![],
         }
     }
 
     pub fn append(&mut self, s: String) {
-        self.lines.push(s);
-        if self.lines.len() > self.max_lines {
-            self.lines.remove(0);
-        }
+        self.pending_lines.push(s);
     }
 
     pub fn draw(&mut self) -> Result<(), Box<dyn Error>> {
         let mut stdout = std::io::stdout();
-        if self.drawn_lines > 0 {
-            stdout
-                .queue(crossterm::cursor::MoveToColumn(0u16))
-                .unwrap()
-                .queue(crossterm::cursor::MoveUp(self.drawn_lines as u16))
-                .unwrap();
-        }
-        stdout.queue(terminal::Clear(terminal::ClearType::FromCursorDown))?;
-
-        for l in &self.lines {
+        for l in &self.pending_lines {
             stdout.queue(Print(format!("{}{}\n", &self.prefix, l))).unwrap();
         }
         stdout.flush()?;
-        self.drawn_lines = self.lines.len();
         Ok(())
     }
 }