Added some better theming to the UI, enabled clippy to warn on 2018 idioms, and added human_panic hook to report bugs

src/main.rs

@@ -1,7 +1,8 @@
-extern crate core;
+#![warn(rust_2018_idioms)]
 
-use std::io;
+use std::panic::PanicInfo;
 use std::sync::Arc;
+use std::{io, panic};
 
 use anyhow::Result;
 use clap::Parser;
@@ -36,6 +37,9 @@ struct Cli {}
 #[tokio::main]
 async fn main() -> Result<()> {
   log4rs::init_config(utils::init_logging_config())?;
+  panic::set_hook(Box::new(|info| {
+    panic_hook(info);
+  }));
   Cli::parse();
 
   let config = confy::load("managarr", "config")?;
@@ -105,3 +109,48 @@ async fn start_ui(app: &Arc<Mutex<App>>) -> Result<()> {
 
   Ok(())
 }
+
+#[cfg(debug_assertions)]
+fn panic_hook(info: &PanicInfo<'_>) {
+  use backtrace::Backtrace;
+  use crossterm::style::Print;
+
+  let location = info.location().unwrap();
+
+  let msg = match info.payload().downcast_ref::<&'static str>() {
+    Some(s) => *s,
+    None => match info.payload().downcast_ref::<String>() {
+      Some(s) => &s[..],
+      None => "Box<Any>",
+    },
+  };
+
+  let stacktrace: String = format!("{:?}", Backtrace::new()).replace('\n', "\n\r");
+
+  disable_raw_mode().unwrap();
+  execute!(
+    io::stdout(),
+    LeaveAlternateScreen,
+    Print(format!(
+      "thread '<unnamed>' panicked at '{}', {}\n\r{}",
+      msg, location, stacktrace
+    )),
+  )
+  .unwrap();
+}
+
+#[cfg(not(debug_assertions))]
+fn panic_hook(info: &PanicInfo<'_>) {
+  use human_panic::{handle_dump, print_msg, Metadata};
+
+  let meta = Metadata {
+    version: env!("CARGO_PKG_VERSION").into(),
+    name: env!("CARGO_PKG_NAME").into(),
+    authors: env!("CARGO_PKG_AUTHORS").replace(":", ", ").into(),
+    homepage: env!("CARGO_PKG_HOMEPAGE").into(),
+  };
+  let file_path = handle_dump(&meta, info);
+  disable_raw_mode().unwrap();
+  execute!(io::stdout(), LeaveAlternateScreen).unwrap();
+  print_msg(file_path, &meta).expect("human-panic: printing error message to console failed");
+}