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pigweed / third_party / github / bazelbuild / rules_rust / 0deef6dd8180cd3bc610878558bb26921b4e8de1
commit0deef6dd8180cd3bc610878558bb26921b4e8de1[log] [tgz]
authorDavid Tolnay <dtolnay@gmail.com>Mon Apr 20 02:58:55 2020 -0700
committerGitHub <noreply@github.com>Mon Apr 20 11:58:55 2020 +0200
treed20fbd09d7ecd6a78a318d2317b4fce5f781a651
parent0369b8e033dc8a5522925bf7e9c3da8f9deec241 [diff]
Define default value for extra_target_triples (#308)
1 file changed
tree: d20fbd09d7ecd6a78a318d2317b4fce5f781a651
  1. .bazelci/
  2. bindgen/
  3. docs/
  4. examples/
  5. proto/
  6. rust/
  7. test/
  8. tools/
  9. util/
  10. wasm_bindgen/
  11. .gitignore
  12. AUTHORS
  13. BUILD
  14. CODEOWNERS
  15. CONTRIBUTING.md
  16. CONTRIBUTORS
  17. libc.BUILD
  18. LICENSE.txt
  19. package-lock.json
  20. package.json
  21. README.md
  22. renovate.json
  23. WORKSPACE
  24. workspace.bzl
README.md

Rust Rules

  • Postsubmit Build status
  • Postsubmit + Current Bazel Incompatible Flags Build status

Overview

This repository provides rules for building Rust projects with Bazel.

Basics

WebAssembly

To build a rust_binary for wasm32-unknown-unknown add the --platforms=//rust/platform:wasm flag.

bazel build @examples//hello_world_wasm --platforms=//rust/platform:wasm

rust_wasm_bindgen will automatically transition to the wasm platform and can be used when building wasm code for the host target.

Protobuf

with an overview here.

Setup

To use the Rust rules, add the following to your WORKSPACE file to add the external repositories for the Rust toolchain:

load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")

http_archive(
    name = "io_bazel_rules_rust",
    sha256 = "b6da34e057a31b8a85e343c732de4af92a762f804fc36b0baa6c001423a70ebc",
    strip_prefix = "rules_rust-55f77017a7f5b08e525ebeab6e11d8896a4499d2",
    urls = [
        # Master branch as of 2019-10-07
        "https://github.com/bazelbuild/rules_rust/archive/55f77017a7f5b08e525ebeab6e11d8896a4499d2.tar.gz",
    ],
)

http_archive(
    name = "bazel_skylib",
    sha256 = "9a737999532daca978a158f94e77e9af6a6a169709c0cee274f0a4c3359519bd",
    strip_prefix = "bazel-skylib-1.0.0",
    url = "https://github.com/bazelbuild/bazel-skylib/archive/1.0.0.tar.gz",
)

load("@io_bazel_rules_rust//rust:repositories.bzl", "rust_repositories")
rust_repositories()

load("@io_bazel_rules_rust//:workspace.bzl", "bazel_version")
bazel_version(name = "bazel_version")

The rules are under active development, as such the lastest commit on the master branch should be used. master currently requires Bazel >= 0.26.0.

External Dependencies

Currently the most common approach to managing external dependencies is using cargo-raze to generate BUILD files for Cargo crates.

Roadmap

  • Improve expressiveness of features and support for Cargo's feature groups.
  • Add cargo_crate workspace rule for pulling crates from Cargo.