The mime-guess feature doesn't work

[vicanso]

When I enable the mime-guess feature like this:

rust-embed = { version = "6.6.0", features = ["compression", "mime-guess"] }

I can't get the mimetype from metadata, and the build error is:

24 |         println!("{:?}", file.metadata.mimetype());
   |                                        ^^^^^^^^ method not found in `Metadata`

[pyrossh]

Hmm... we do have test cases that test this feature out though.
https://github.com/pyrossh/rust-embed/blob/master/tests/mime_guess.rs#L28
And this is running in our pipeline,
cargo test --test mime_guess --features "mime-guess"
What could be going wrong?

[BBaoVanC]

I'm confused too, it works in my app (https://github.com/BBaoVanC/bobashare, in bobashare-web/src/static_routes.rs), but I don't see Metadata::mimetype listed at all in the rustdoc (although maybe it can't tell it exists), and this simple code fails:

use rust_embed::RustEmbed;

#[derive(RustEmbed)]
#[folder = "static/"]
struct Asset;

fn main() {
    Asset::get("abc").map(|f| f.metadata.mimetype());
}

Not sure what is going on and how it's working fine for me

[vicanso]

@pyrossh I find that if I add this dependency, it works.

rust-embed-utils = { version = "7.5.0", features = ["mime-guess"] }

[pyrossh]

@vicanso thanks, that was it. The mime-guess feature didn't include the utils crate feature hence the issue. https://github.com/pyrossh/rust-embed/blob/master/Cargo.toml#L87. I've added it now and released v6.6.1 and it works.

Here is a simple example,

use rust_embed::RustEmbed;

#[derive(RustEmbed)]
#[folder = "static/"]
struct Asset;

fn main() {
    println!("{:?}", Asset::get("main.js").unwrap().metadata.mimetype())
}