use std::env; use ansi_term::Color; pub fn display() { let PROMPT_CHAR = "➜ "; let COLOR_SUCCESS = Color::Green; let COLOR_FAILURE = Color::Red; let color = match env::var_os("status") { None | "0" => COLOR_SUCCESS, _ => COLOR_FAILURE }; // let color = match env::var("status") { // Ok("0") | _ => COLOR_SUCCESS, // Ok("1") => COLOR_FAILURE // }; print!("{}", color.paint(PROMPT_CHAR)); }