# frozen_string_literal: true
module Bundler
class Standalone
def initialize(groups, definition)
@specs = groups.empty? ? definition.requested_specs : definition.specs_for(groups.map(&:to_sym))
end
def generate
SharedHelpers.filesystem_access(bundler_path) do |p|
FileUtils.mkdir_p(p)
end
File.open File.join(bundler_path, "setup.rb"), "w" do |file|
file.puts "require 'rbconfig'"
file.puts "# ruby 1.8.7 doesn't define RUBY_ENGINE"
file.puts "ruby_engine = defined?(RUBY_ENGINE) ? RUBY_ENGINE : 'ruby'"
file.puts "ruby_version = RbConfig::CONFIG[\"ruby_version\"]"
file.puts "path = File.expand_path('..', __FILE__)"
paths.each do |path|
file.puts %($:.unshift "\#{path}/#{path}")
end
end
end
private
def paths
@specs.map do |spec|
next if spec.name == "bundler"
Array(spec.require_paths).map do |path|
gem_path(path, spec).sub(version_dir, '#{ruby_engine}/#{ruby_version}')
# This is a static string intentionally. It's interpolated at a later time.
end
end.flatten
end
def version_dir
"#{Bundler::RubyVersion.system.engine}/#{RbConfig::CONFIG["ruby_version"]}"
end
def bundler_path
Bundler.root.join(Bundler.settings[:path], "bundler")
end
def gem_path(path, spec)
full_path = Pathname.new(path).absolute? ? path : File.join(spec.full_gem_path, path)
Pathname.new(full_path).relative_path_from(Bundler.root.join(bundler_path)).to_s
rescue TypeError
error_message = "#{spec.name} #{spec.version} has an invalid gemspec"
raise Gem::InvalidSpecificationException.new(error_message)
end
end
end
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