commit 86589e0aa9ca70d882cbcd64cf4e19f04e71b9e9
author martinboehme <mboehme@google.com> Wed Mar 31 11:32:27 2021 +0200
committer GitHub <noreply@github.com> Wed Mar 31 11:32:27 2021 +0200
tree bc9b56aa648e3a2205a670c0925b04bd746c0592
parent c431d21055119cf9c547d39e22042d070c9d2406

Respect `crate_name` attribute when setting CARGO_CRATE_NAME. (#669)

As part of this change, I've moved the formerly private `_crate_name`
function from rust.bzl to utils.bzl and renamed it to
`crate_name_from_attr.

I've also had to add a `hasattr(attr, "crate_name")` check to this
function because `rustc_compile_action` (which calls through to
`_get_rustc_env`) gets called from the implementation of the Rust proto
rules, and those don't have a `crate_name` attribute (and it wouldn't
make sense to add one either).