Files
tonic/tonic-build
James SteeleandLucio Franco b02b4b238b fix(build): Prevent duplicated client/server generated code (#121)
* fix(build): Prevent duplicated client/server generated code

The tonic-build process collects up RPC services as they are provided by
prost, before writing them out as part of the finalization step for a
given protocol buffer package.

In the case of imported protocol buffer packages, there may be RPC
services included by import in addition to those in the top-level
package. Therefore it is necessary to make sure each set of
client/server services gathered by tonic-build is cleared after the
finalization process for a given protocol buffer package, otherwise they
will be incorrectly aggregated as the generation process proceeds
through the subsequent packages.

* Test case for duplicated client/server generated code

A simple test case that will fail to build without a fix to prevent
RPC services being duplicated into inappropriate modules (that related
to particular protocol buffer packages).

* Additional test case for included_service

Introduces an additional case that captures making sure services defined
before including a package with additional services doesn't
incidentially clear such precursor services from the including package.

* Fix unnecessary newline to keep `cargo fmt` happy
2019-11-09 15:45:22 +00:00
..

tonic-build

Compiles proto files via prost and generates service stubs and proto definitiones for use with tonic.

Features

  • rustfmt: This feature enables the use of rustfmt to format the output code this makes the code readable and the error messages nice. This requires that rustfmt is installed. This is enabled by default.

Required dependencies

[dependencies]
bytes = <bytes-version>
tonic = <tonic-version>
prost = <prost-version>

[build-dependencies]
tonic-build = <tonic-version>

Examples

Simple

fn main() -> Result<(), Box<dyn std::error::Error>> {
    tonic_build::compile_protos("proto/service.proto")?;
    Ok(())
}

Configuration

fn main() -> Result<(), Box<dyn std::error::Error>> {
   tonic_build::configure()
        .build_server(false)
        .compile(
            &["proto/helloworld/helloworld.proto"],
            &["proto/helloworld"],
        )?;
   Ok(())
}