Vendor dependencies

Let's see how I like this workflow.

vendor/crossterm/examples/event-poll-read.rs

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+//! Demonstrates how to match on modifiers like: Control, alt, shift.
+//!
+//! cargo run --example event-poll-read
+
+use std::{io::stdout, time::Duration};
+
+use crossterm::{
+    cursor::position,
+    event::{poll, read, DisableMouseCapture, EnableMouseCapture, Event, KeyCode},
+    execute,
+    terminal::{disable_raw_mode, enable_raw_mode},
+    Result,
+};
+
+const HELP: &str = r#"Blocking poll() & non-blocking read()
+ - Keyboard, mouse and terminal resize events enabled
+ - Prints "." every second if there's no event
+ - Hit "c" to print current cursor position
+ - Use Esc to quit
+"#;
+
+fn print_events() -> Result<()> {
+    loop {
+        // Wait up to 1s for another event
+        if poll(Duration::from_millis(1_000))? {
+            // It's guaranteed that read() won't block if `poll` returns `Ok(true)`
+            let event = read()?;
+
+            println!("Event::{:?}\r", event);
+
+            if event == Event::Key(KeyCode::Char('c').into()) {
+                println!("Cursor position: {:?}\r", position());
+            }
+
+            if event == Event::Key(KeyCode::Esc.into()) {
+                break;
+            }
+        } else {
+            // Timeout expired, no event for 1s
+            println!(".\r");
+        }
+    }
+
+    Ok(())
+}
+
+fn main() -> Result<()> {
+    println!("{}", HELP);
+
+    enable_raw_mode()?;
+
+    let mut stdout = stdout();
+    execute!(stdout, EnableMouseCapture)?;
+
+    if let Err(e) = print_events() {
+        println!("Error: {:?}\r", e);
+    }
+
+    execute!(stdout, DisableMouseCapture)?;
+
+    disable_raw_mode()
+}