script/rails-current and script/rails-next dual booting command runners

rails-current

#!/usr/bin/env ruby

require "optparse"

SCRIPT_NAME = File.basename(__FILE__)

ARGS_TO_FORWARD = ARGV.dup
ARGV.delete_if { |arg| arg !~ /-h|--help/ }

OptionParser.new do |opts|
  opts.banner = "Usage: #{SCRIPT_NAME} [options]"

  opts.on("-h", "--help") do
    puts <<~STR
      #{SCRIPT_NAME} runs commands through the Rails version in use
      by the Gemfile.

      All arguments are forwarded except for -h and --help.

      Examples for running bundler commands

        #{SCRIPT_NAME} bundle config
        #{SCRIPT_NAME} bundle install
        #{SCRIPT_NAME} bundle update some_gem --conservative

      Examples for running rails commands

        #{SCRIPT_NAME} rails console

      STR
  end
end.parse!

ENV['BUNDLE_GEMFILE'] = 'Gemfile'
ENV['BUNDLE_CACHE_PATH'] = 'vendor/cache'
ENV['BUNDLE_CONFIG'] = '.bundle/config'

if Dir.exists?('vendor/bundle')
  ENV['BUNDLE_PATH'] = 'vendor/bundle'
end

if ARGS_TO_FORWARD.first == "bundle"
  command = ARGS_TO_FORWARD.join(' ')
else
  command = "bundle exec #{ARGS_TO_FORWARD.join(' ')}"
end
exec command

rails-next

#!/usr/bin/env ruby

require "optparse"

SCRIPT_NAME = File.basename(__FILE__)

ARGS_TO_FORWARD = ARGV.dup
ARGV.delete_if { |arg| arg !~ /-h|--help/ }

OptionParser.new do |opts|
  opts.banner = "Usage: #{SCRIPT_NAME} [options]"

  opts.on("-h", "--help") do
    puts <<~STR
      #{SCRIPT_NAME} runs commands through the Rails version in use
      by the Gemfile_next.

      All arguments are forwarded except for -h and --help.

      Examples for running bundler commands

        #{SCRIPT_NAME} bundle config
        #{SCRIPT_NAME} bundle install
        #{SCRIPT_NAME} bundle update some_gem --conservative

      Examples for running rails commands

        #{SCRIPT_NAME} rails console

      STR
  end
end.parse!

ENV['BUNDLE_GEMFILE'] = 'Gemfile_next'
ENV['BUNDLE_CACHE_PATH'] = 'vendor/cache_next'
ENV['BUNDLE_CONFIG'] = '.bundle/config_next'

if Dir.exists?('vendor/bundle_next')
  ENV['BUNDLE_PATH'] = 'vendor/bundle_next'
end

if ARGS_TO_FORWARD.first == "bundle"
  command = ARGS_TO_FORWARD.join(' ')
else
  command = "bundle exec #{ARGS_TO_FORWARD.join(' ')}"
end
exec command