How to automatically expose all .rs files in a directory in a module?

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I have module files generated from protobuf definitions. There are a lot of files and they will grow with time. This is the structure:

proto_rust/src/lib.rs
proto_rust/src/protos/{lots of auto generated .rs files}
proto_rust/src/protos/mod.rs

Since there are lots of files in proto_rust/src/protos/, it does not make sense for me to manually put them in mod.rs. Is there a way to expose all them to lib.rs? Something like pub mod *.

rust
1 Answers

Use dtolnay's automod crate.

automod::dir!("path/to/directory");

This macro expands to one or more mod items, one for each source file in the specified directory.

The path is given relative to the directory containing Cargo.toml.

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