error handling part 1

Cargo.toml

@@ -6,5 +6,6 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+color-eyre = "0.6.3"
 crossterm = "0.27.0"
 ratatui = "0.26.2"

src/errors.rs

@@ -0,0 +1,28 @@
+use std::panic;
+
+use color_eyre::{
+    config::HookBuilder,
+    eyre::{self, Ok},
+};
+
+use crate::tui;
+
+pub fn install_hooks() -> color_eyre::Result<()> {
+    let (panic_hook, eyre_hook) = HookBuilder::default().into_hooks();
+
+    let panic_hook = panic_hook.into_panic_hook();
+    panic::set_hook(Box::new(move |panic_info| {
+        tui::restore().unwrap();
+        panic_hook(panic_info);
+    }));
+
+    let eyre_hook = eyre_hook.into_eyre_hook();
+    eyre::set_hook(Box::new(
+        move |error: &(dyn std::error::Error + 'static)| {
+            tui::restore().unwrap();
+            eyre_hook(error)
+        },
+    ))?;
+
+    Ok(())
+}

src/main.rs

@@ -7,9 +7,16 @@ use ratatui::{
     widgets::{block::*, *},
 };
 
+use color_eyre::{
+    eyre::{bail, WrapErr},
+    Result,
+};
+
+mod errors;
 mod tui;
 
 fn main() -> io::Result<()> {
+    errors::install_hooks()?;
     let mut terminal = tui::init()?;
     let app_result = App::default().run(&mut terminal);
     tui::restore()?;