Question: Change formatter with plugin?

[will]

Hi, I'm looking through https://solargraph.org/guides/plugins and I see I can modify the reporters, which is cool. I'm looking to also change the formatter, but don’t see it explicitly called out as an option. Is it possible? I mean I imagine I could monkey patch anything to work, but more like asking if it's supported.

[will]

I've gone the monkey patching route for now, posting the solution here just in case it's useful to find what spots would be good for hooks:

#!/usr/bin/env ruby

ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../Gemfile", __dir__)
require "bundler/setup"

require "solargraph"
require "standard"

class Solargraph::LanguageServer::Message::TextDocument::Formatting
  def process
    file_uri = params["textDocument"]["uri"]
    config = config_for(file_uri)
    original = host.read_text(file_uri)
    args = cli_args(file_uri, config)

    # require_rubocop(config['version'])
    # options, paths = RuboCop::Options.new.parse(args)
    std = Standard::BuildsConfig.new.call(args)
    options = std.rubocop_options
    options[:stdin] = original
    corrections = redirect_stdout do
      # RuboCop::Runner.new(options, RuboCop::ConfigStore.new).run(paths)
      RuboCop::Runner.new(options, std.rubocop_config_store).run(std.paths)
    end
    result = options[:stdin]

    log_corrections(corrections)

    format original, result
  rescue RuboCop::ValidationError, RuboCop::ConfigNotFoundError => e
    set_error(Solargraph::LanguageServer::ErrorCodes::INTERNAL_ERROR, "[#{e.class}] #{e.message}")
  end

  def formatter_class(_config)
    Standard::Formatter
  end
end

Solargraph::Shell.start(ARGV)

Then I have nvim start this as the lsp instead of the one provided by the gem.

[castwide]

Setting formatters from plugins is on the roadmap. Thanks for the example implementation. This feature is long overdue, so I'll try to get it into the next minor release.

[sheck]

@will using that as a binstub worked great for me — thanks!