Method: Solargraph::Diagnostics::RubocopHelpers.require_rubocop

Defined in:
lib/solargraph/diagnostics/rubocop_helpers.rb

.require_rubocop(version = nil) ⇒ Object

Requires a specific version of rubocop, or the latest installed version if version is ‘nil`.

Parameters:

  • version (String, nil) (defaults to: nil)

Raises:



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# File 'lib/solargraph/diagnostics/rubocop_helpers.rb', line 15

def require_rubocop(version = nil)
  begin
    gem_path = Gem::Specification.find_by_name('rubocop', version).full_gem_path
    gem_lib_path = File.join(gem_path, 'lib')
    $LOAD_PATH.unshift(gem_lib_path) unless $LOAD_PATH.include?(gem_lib_path)
  # @todo Gem::MissingSpecVersionError is undocumented for some reason
  # @sg-ignore
  rescue Gem::MissingSpecVersionError => e
    raise InvalidRubocopVersionError,
          "could not find '#{e.name}' (#{e.requirement}) - "\
          "did find: [#{e.specs.map { |s| s.version.version }.join(', ')}]"
  end
  require 'rubocop'
end