bazelbuild/rules_go 0.8.0 on GitHub

Go rules

Minimum Bazel version is now 0.8.0.
The config_setting rules in //go/platform are now based on constraint_values instead of cpu. This means that you can write select expressions that match any platform that the Go SDK targets.
Go executable files now end with ".exe" on Windows.
Output paths have changed for nearly all rules to include the target platform and configuration. This preserves the cache when targets are built in different configurations.
Fixed cgo tag filtering for "pure" builds.
Support for linux/s390x as a host platform (thanks to @kadamvandita).

Proto rules

The proto compiler is now selected using an explicit compiler attribute in go_proto_library. We no longer use toolchains for this. This lets you use different plugins for different proto libraries.
go_grpc_library is now a macro around go_proto_library with a gRPC plugin. We plan to deprecate this soon.

Gazelle changes

Gazelle builds an index of all libraries in a repository and uses the index to resolve dependencies. This enables multiple vendor directories, Go subtrees not at the repository root, and more.
# gazelle:exclude can be used to ignore paths in subdirectories, not just files in the current directory.
Removed the experimental flat mode. We planned to use flat files with new_http_archive / new_git_repository, but this would cause unnecessary work when migrating repositories to Bazel. We're exploring other solutions.

WORKSPACE code

To use this release, add this code to your WORKSPACE file:

http_archive(
    name = "io_bazel_rules_go",
    url = "https://github.com/bazelbuild/rules_go/releases/download/0.8.0/rules_go-0.8.0.tar.gz",
    sha256 = "8eaf2e62811169d9cf511209153effcb132826cea708b2f75d4dd5f9e57ea2aa",
)
load("@io_bazel_rules_go//go:def.bzl", "go_rules_dependencies", "go_register_toolchains")
go_rules_dependencies()
go_register_toolchains()

Direct download: rules_go-0.8.0.tar.gz