use crossterm for cross platform terminal clearing

Cargo.toml

@@ -22,3 +22,4 @@ chrono = { version = "0.4", features = ["serde"] }
 csv = "1.1.6"
 thiserror = "1.0.38"
 anyhow = "1.0.68"
+crossterm = "0.26.1"

src/lib.rs

@@ -1,7 +1,7 @@
 use colored::{ColoredString, Colorize};
+use crossterm::{cursor, terminal, ExecutableCommand};
 
 use std::io::{self, Write};
-use std::process::Command;
 
 use anyhow::Result;
 use chrono::Utc;
@@ -76,7 +76,7 @@ pub fn sub_menu(todos: &mut Vec<Todo>) -> Result<bool> {
         .to_string();
 
     if id.contains('1') {
-        show_todos(todos);
+        show_todos(todos)?;
         Ok(false)
     } else if id.contains('2') {
         add_todo(todos)?;
@@ -126,9 +126,11 @@ pub fn add_todo(td: &mut Vec<Todo>) -> Result<()> {
 }
 
 /// Show todos in a formatted table
-pub fn show_todos(todos: &mut [Todo]) {
+pub fn show_todos(todos: &mut [Todo]) -> Result<()> {
     // Clear the screen
-    Command::new("clear").status().unwrap();
+    std::io::stdout()
+        .execute(terminal::Clear(terminal::ClearType::All))?
+        .execute(cursor::MoveTo(0, 0))?;
 
     println!(
         "{:^10} {:^40} {:^40} {:^10} {:^32}",
@@ -182,6 +184,8 @@ pub fn show_todos(todos: &mut [Todo]) {
             );
         }
     }
+
+    Ok(())
 }
 
 /// Removes todo with the given ID from the list

src/main.rs

@@ -8,9 +8,9 @@
 //! add new features and help me learn Rust.
 
 use colored::Colorize;
+use crossterm::{cursor, terminal, ExecutableCommand};
 use rtodo::commands::execute_commands;
 
-use std::process::Command;
 use std::sync::{
     atomic::{AtomicBool, Ordering},
     Arc,
@@ -54,7 +54,12 @@ fn main() {
         // Handler loop
         while running.load(Ordering::SeqCst) {
             // Clear the screen
-            Command::new("clear").status().unwrap();
+            // Command::new("clear").status().unwrap();
+            std::io::stdout()
+                .execute(terminal::Clear(terminal::ClearType::All))
+                .unwrap()
+                .execute(cursor::MoveTo(0, 0))
+                .unwrap();
 
             // Show main menu
             main_menu();
@@ -74,15 +79,15 @@ fn main() {
 
             // Open sub menu / show todos
             if user.contains('1') {
-                show_todos(&mut todos);
+                show_todos(&mut todos).unwrap();
 
                 // Display the sub menu in a loop
                 while let Ok(e) = sub_menu(&mut todos) {
                     // Break if `sub_menu()` returned false
                     if !e {
                         break;
                     }
-                    show_todos(&mut todos);
+                    show_todos(&mut todos).unwrap();
                 }
             // add todo
             } else if user.contains('2') {
@@ -91,13 +96,13 @@ fn main() {
                 }
             // update todo
             } else if user.contains('3') {
-                show_todos(&mut todos);
+                show_todos(&mut todos).unwrap();
                 if let Err(e) = update_todo(&mut todos) {
                     eprintln!("{e}");
                 }
             // remove todo
             } else if user.contains('4') {
-                show_todos(&mut todos);
+                show_todos(&mut todos).unwrap();
                 if let Err(e) = remove_todo(&mut todos) {
                     eprintln!("{e}");
                 }