Ruby

Build with Flox

Not only can you develop your software with Flox, but you can build it as well. See the builds concept page for more details.

Since Ruby is not a compiled language, to create an executable artifact you must create a shell script that calls bundle exec. Configure bundler to use the local directory to store the bundles by setting $GEM_HOME to something like ./vendor. If you're Gemfile compiles native extensions, you may also want to unset CPATH. See the Flox ruby environment for more information, examples and specific details.

For example, say you have an application whose source is in app.rb, and that you created a script called myproject at the root of your repository with the following contents:

#!/usr/bin/env bash

bundle exec ruby app.rb

The build command for your application would look like this:

[build.myproject]
command = '''
  # Vendor dependencies
  bundle

  # Create the output directories
  mkdir -p $out/{lib,bin}

  # Copy source files to $out/lib
  cp -pr * $out/lib

  # Move the executable script
  mv $out/lib/myproject $out/bin/myproject
'''