feature: convenience method to get mime type from string

[yoshuawuyts]

It takes a bit of boilerplate to convert /foo/img.png to MIME image/png:

  pub fn get_mime(src: &str) -> String {
    let ext = Path::new(src)
      .extension()
      .and_then(OsStr::to_str)
      .unwrap_or("");
    let mime_type = mime_guess::get_mime_type(&ext);
    format!("{}/{}", mime_type.type_(), mime_type.subtype())
  }

It'd be nice if there was a convenience method built-in that would so something similar to the above.

Thanks!

[abonander]

I think #38 will cover this, I just keep forgetting to merge it.

[yoshuawuyts]

I figured it out:

    let icon_type = mime_guess::guess_mime_type(&src).to_string();

What tripped me up here is that .to_string() didn't show up in the docs at all, so I didn't know it was available. Thanks for the quick reply tho!

[abonander]

That's because Mime implements Display and ToString is implemented for all implementors of that.

However, the strings are available already so you don't have to round-trip like that. It just needs a function exposing them.