rustfmt-wrapper

Rust makes it easy to generate more Rust code--for macros, builders, whatever. It's nice to format that code to be a little easier on the eyes. While rustfmt does a pretty good job, it does a pretty good job as a command and isn't usable as a library. This is a probably-too-simple wrapper library.

It's pretty simple to use and mixes well with quote!:

rust let codegen = quote::quote!{ struct Foo { bar: String } }; let formatted: String = rustfmt_wrapper::rustfmt(codegen).unwrap();

If you need more control over the vast array of rustfmt configuration options, you can use the second form:

```rust let codegen = quote::quote!{ async fn go() { let _ = Client::new().operationid().send().await?; } }; let config = Config { maxwidth: Some(45), ..Default::default() };

let narrowformatted = rustfmtconfig(config, codegen).unwrap(); ```

Note that in order to use unstable configuration options, you will need to have a the nightly version of rustfmt installed.

Thanks to David Tolnay for so many tools including cargo-expand from which this borrows.