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pigweed/third_party/github/bazelbuild/rules_rust/7cde1e46e9e5a97eb2650ee70a81ec8f9578e3e7
commit
7cde1e46e9e5a97eb2650ee70a81ec8f9578e3e7
[log] [tgz]
author
John Edmonds <jedmonds@spotify.com>
Thu Oct 31 10:34:25 2019 -0700
committer
Alex McArther <acmcarther@google.com>
Thu Oct 31 10:34:25 2019 -0700
tree
ebe32714b0d98d337298ef9b9adf4e35e6a5e9a8
parent
5c0e90a24e9b9e8ab81b183de4d14eb95fb86747 [diff]
Add support for wasm-bindgen. (#240)

* Add support for WebAssembly.

* Add a comment explaining that the npm deps are for the wasm example.

* Use transitions for web assembly.

* Upgrade WASM bindgen and make compatible with Typescript.

* Remove unnecessary setting.

* Re-run cargo-raze.

* Add nodejs rules for the examples workspace.

* Fix link_env missing.

* Bazel 1.0 compatibility.

* Exclude matrix_dylib_test on RBE due to https://github.com/bazelbuild/bazel/issues/9987.

* Ignore the wasm test because rust-lld isn't available on RBE.

* Use extra target triples.

* Remove extra newline.
181 files changed
tree: ebe32714b0d98d337298ef9b9adf4e35e6a5e9a8
  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

Build status

Rust Rules

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.