Derive Debug implementation on Snafu Errors that make pretty output

What

The challenge: Error handling in Rust.
The approach: Embrace Results!
The problem: It's not easy to give add nice contexts to errors.
The solution: Snafu!

The challenge: Printing errors in CLI apps.
The approach: Embrace fn main() -> Result<(), Error>!
The problem: It prints using Debug, i.e., like println!("{:?}", error).
The solution: This crate!

Usage

See example.

Output

$ cargo run --example simple -q -- foo
Error: Can't read file `foo`
        cause: No such file or directory (os error 2)

$ cargo run --example simple -q -- foo
Error: Can't read file `foo`
        cause: No such file or directory (os error 2)

License

Licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.