Bug: 158620710

Clone this repo:
  1. f4fea20 Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." by Joel Galenson · 6 weeks ago master
  2. 4747e6f Refresh Android.bp, cargo2android.json, TEST_MAPPING. by Joel Galenson · 7 weeks ago
  3. f9fe97a Merge sc-qpr1-dev-plus-aosp-without-vendor@7810918 by Xin Li · 2 months ago
  4. 01f835b Remove deprecated file. am: fdcf7c8081 by Joel Galenson · 3 months ago
  5. fdcf7c8 Remove deprecated file. by Joel Galenson · 3 months ago


This crate contains protobuf code generator and a protoc-gen-rust protoc plugin.


protoc-gen-rust implements standard protobuf protoc plugin conventions.

Probably you do not want to use it directly in Rust environment, there are easier to use alternatives:

  • protoc-rust crate which can be invoked programmatically from build.rs of your project which requires only protoc in $PATH but not protoc-gen-rust.
  • protobuf-codegen-pure crate which behaves like protoc-rust, but does not depend on protoc binary

But if you really want to use that plugin, here's the instruction

(Note protoc can be invoked programmatically with protoc crate)

  1. Install protobuf for protoc binary.

On OS X Homebrew can be used:

brew install protobuf

On Ubuntu, protobuf-compiler package can be installed:

apt-get install protobuf-compiler

Protobuf is needed only for code generation, rust-protobuf runtime does not use protobuf library.

  1. Install protoc-gen-rust program (which is protoc plugin)

It can be installed either from source or with cargo install protobuf command.

  1. Add protoc-gen-rust to $PATH

If you installed it with cargo, it should be

  1. Generate .rs files:
protoc --rust_out . foo.proto

This will generate .rs files in current directory.