shakapacker-config

#!/usr/bin/env ruby
# frozen_string_literal: true

require "rbconfig"

# Keep helper logic in sync across:
# - lib/install/bin/shakapacker-config
# - lib/install/bin/diff-bundler-config
# - spec/dummy/bin/shakapacker-config
# - package/configExporter/cli.ts (createBinStub).
def shakapacker_app_root
  candidate = File.expand_path("..", __dir__)
  return candidate if File.exist?(File.join(candidate, "Gemfile"))

  warn "[Shakapacker] No Gemfile found at #{candidate.inspect}; " \
       "falling back to the current directory (#{Dir.pwd.inspect})."
  Dir.pwd
end

def shakapacker_executable_candidates(executable)
  extensions = [
    RbConfig::CONFIG["EXEEXT"],
    *ENV.fetch("PATHEXT", "").split(File::PATH_SEPARATOR)
  ].compact.reject(&:empty?)
  return [executable] if extensions.empty? || File.extname(executable) != ""

  ([executable] + extensions.map { |extension| "#{executable}#{extension}" }).uniq
end

def shakapacker_find_executable(executable)
  ENV.fetch("PATH", "").split(File::PATH_SEPARATOR, -1).each do |path|
    search_path = path.empty? ? Dir.pwd : path

    shakapacker_executable_candidates(executable).each do |candidate|
      executable_path = File.join(search_path, candidate)
      return executable_path if File.file?(executable_path) && File.executable?(executable_path)
    end
  end

  nil
end

def shakapacker_node_binary
  node_bin = shakapacker_find_executable("node")
  return node_bin if node_bin

  warn '[Shakapacker] Could not find Node.js executable "node". ' \
       "Install Node.js and try again."
  exit 1
end

def shakapacker_node_env
  %w[development test].include?(ENV["RAILS_ENV"]) ? "development" : "production"
end

ENV["RAILS_ENV"] ||= ENV["RACK_ENV"] || "development"
ENV["NODE_ENV"] ||= shakapacker_node_env

app_root = shakapacker_app_root
node_bin = shakapacker_node_binary
script_path = File.join(
  app_root,
  "node_modules",
  "shakapacker",
  "package",
  "bin",
  "shakapacker-config.cjs"
)

unless File.file?(script_path)
  warn "[Shakapacker] Could not find #{script_path}. Run your package manager install command and try again."
  exit 1
end

Dir.chdir(app_root) do
  exec node_bin, script_path, *ARGV
end