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use colored::*;
use diff::{lines, Result};
use std::fmt::Write;
pub fn colored_diff(left: &str, right: &str) -> Option<String> {
let mut result = String::new();
if left == right {
return None;
}
let lines = lines(left, right);
result.push('\n');
for line in lines {
match line {
Result::Left(l) => {
writeln!(result, "{} {}", "-".red(), &l.red()).unwrap();
}
Result::Right(r) => {
writeln!(result, "{} {}", "+".green(), &r.green()).unwrap();
}
Result::Both(l, _r) => {
writeln!(result, " {}", &l.dimmed()).unwrap();
}
}
}
Some(result)
}
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