NativeExtFetcher

This is a simple gem designed to be used in an extconf.rb file for Ruby gems with native extensions. It will detect and normalize host details and will attempt to download the proper native library from a remote host. This is especially useful with gems that use Rust native libraries.

This code was abstracted from the Skylight gem.

Add this line to your application's Gemfile:

gem 'native_ext_fetcher'

And then execute:

$ bundle

Or install it yourself as:

$ gem install native_ext_fetcher

To use this gem, you'd add something like following to your gem's extconf.rb

include NativeExtFetcher

# Configure the NativeExtFetcher
native_ext_config 's3.amazonaws.com/bucket_name/some/path', __dir__, {
  linux_x86_64: '[sha2 checksum]'
}

# Fetch the library from S3
native_ext_fetch! 'libmynativelib'

# Setup our Makefile as normal
LIB_DIRS = [RbConfig::CONFIG['libdir'], native_ext_download_path]

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/DefWare/native_ext_fetcher. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

The gem is available as open source under the terms of the MIT License.