Module: Bundlebun::Integrations::ExecJS

Defined in:
lib/bundlebun/integrations/execjs.rb

Overview

An integration for execjs.

Runtimes in ExecJS are declared like this: https://github.com/rails/execjs/blob/master/lib/execjs/runtimes.rb We will redefine the Bun one, changing its command.

Then, we will automatically set the bundlebun-ed Bun as the default runtime.

See Also:

Class Method Summary collapse

Class Method Details

.bun! ⇒ Object

Patches the existing module to use bundlebun-ed Bun in place of an already existing, spported Bun runtime: we replace it with a bundled version.

Additionally, sets it as a default ExecJS runtime.

Call this after everything is loaded and required. For a Rails application, a good place is an initializer.

See the documentation for more info on installation Rake tasks.

Examples:

Bundlebun::Integrations::ExecJS.bun!


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# File 'lib/bundlebun/integrations/execjs.rb', line 26

def self.bun!
  return unless defined?(::ExecJS::Runtimes)

  # Remove the existing Bun constant if it exists
  ::ExecJS::Runtimes.send(:remove_const, :Bun) if ::ExecJS::Runtimes.const_defined?(:Bun)

  # Define new Bun runtime with our custom command
  bun_runtime = ::ExecJS::Runtimes.const_set(:Bun,
    ::ExecJS::ExternalRuntime.new(
      name: "Bun.sh",
      command: [Bundlebun::Runner.binstub_or_binary_path],
      runner_path: ::ExecJS.root + "/support/bun_runner.js",
      encoding: "UTF-8"
    ))

  # Set the runtime
  ::ExecJS.runtime = bun_runtime
end