module RSpec::Core::RubyProject

# File rspec-core/lib/rspec/core/ruby_project.rb, line 12
def add_dir_to_load_path(dir)
  $LOAD_PATH.unshift(dir) unless $LOAD_PATH.include?(dir)
end

# File rspec-core/lib/rspec/core/ruby_project.rb, line 8
def add_to_load_path(*dirs)
  dirs.each { |dir| add_dir_to_load_path(File.join(root, dir)) }
end

# File rspec-core/lib/rspec/core/ruby_project.rb, line 28
def ascend_until
  fs = File::SEPARATOR
  escaped_slash = "\\#{fs}"
  special = "_RSPEC_ESCAPED_SLASH_"
  project_path = File.expand_path(".")
  parts = project_path.gsub(escaped_slash, special).squeeze(fs).split(fs).map do |x|
    x.gsub(special, escaped_slash)
  end

  until parts.empty?
    path = parts.join(fs)
    path = fs if path == ""
    return path if yield(path)
    parts.pop
  end
end

# File rspec-core/lib/rspec/core/ruby_project.rb, line 20
def determine_root
  find_first_parent_containing('spec') || '.'
end

# File rspec-core/lib/rspec/core/ruby_project.rb, line 24
def find_first_parent_containing(dir)
  ascend_until { |path| File.exist?(File.join(path, dir)) }
end

# File rspec-core/lib/rspec/core/ruby_project.rb, line 16
def root
  @project_root ||= determine_root
end