v1.1.0

Added

• Add support for the :variant option. This is a way to build alternative versions
  for the same target. The idea is to build for different dependencies, or with different
  features.

  This feature is compatible with RustlerPrecompiled since version 0.7.
  See: https://github.com/philss/rustler_precompiled/releases/tag/v0.7.0

• Add the :cargo-args option. It enables the users to pass arbitrary flags
  to the cargo build command (this may be cross build sometimes).

• Support the RUSTFLAGS environment variable. It pass down options to the
  Rust compiler.

  Normally this env var is not needed, since it's possible to configure the
  same flags by configuring the .cargo/config.toml file in your project.

  Be aware that you need to set this env var before using this GitHub Action.
  It is also required to configure the Cross.toml file to read this env var.
  See the guide
  for details

• Add two env vars to make easier to debug:

  • RUSTLER_PRECOMPILED_DEBUG_MODE: sets the compilation profile to "debug" instead
    of the default "release".
  • DRY_RUN: avoid to run the build command, and instead print what would be executed.

• Support Rustler NIF version selection by cargo features.

  This makes the selection of the NIF version work for projects using Rustler
  above version 0.29. The RUSTLER_NIF_VERSION is deprecated since that version,
  and was removed in the v0.30 of Rustler.

  The build script is going to detect which cargo features the project has declared
  that are related to NIF versions. It is going to take the same naming used by
  Rustler - e.g. nif_version_2_15. If the project has declared any "version features",
  the build script is going to activate the correct version based on the :nif-version
  input of the GitHub Action.

  See the update from Rustler: https://github.com/rusterlium/rustler/blob/master/UPGRADE.md#028---029
  And also the RustlerPrecompiled guide: https://hexdocs.pm/rustler_precompiled/precompilation_guide.html#additional-configuration-before-build

Pull requests

• Support Rustler's NIF version selection using features by @philss in #4
• Support building with a variant name by @philss in #5

Full Changelog: v1.0.1...v1.1.0