brew/Library/Homebrew/dev-cmd/rubocop.sh

#:  * `rubocop`
#:
#:  Installs, configures and runs Homebrew's `rubocop`.

homebrew-rubocop() {
  # Don't need shellcheck to follow this `source`.
  # shellcheck disable=SC1090
  source "$HOMEBREW_LIBRARY/Homebrew/utils/ruby.sh"
  setup-ruby-path

  GEM_VERSION="$("$HOMEBREW_RUBY_PATH" "$RUBY_DISABLE_OPTIONS" -rrbconfig -e 'puts RbConfig::CONFIG["ruby_version"]')"
  GEM_HOME="$HOMEBREW_LIBRARY/Homebrew/vendor/bundle/ruby/$GEM_VERSION"

  if ! [[ -f "$GEM_HOME/bin/rubocop" ]]; then
    "$HOMEBREW_BREW_FILE" install-bundler-gems
  fi

  export GEM_HOME
  export PATH="$GEM_HOME/bin:$PATH"

  RUBOCOP="$HOMEBREW_LIBRARY/Homebrew/utils/rubocop.rb"
  exec "$HOMEBREW_RUBY_PATH" "$RUBOCOP" "$@"
}