- Postsubmit
- Postsubmit + Current Bazel Incompatible Flags
This repository provides rules for building Rust projects with Bazel.
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.
with an overview here.
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.
Currently the most common approach to managing external dependencies is using
cargo-raze to generate BUILD files for Cargo crates.
- Improve expressiveness of features and support for Cargo's feature groups.
- Add
cargo_crateworkspace rule for pulling crates from Cargo.