Class: Rigor::CLI::LspCommand

Inherits:
Command
  • Object
show all
Defined in:
lib/rigor/cli/lsp_command.rb

Overview

Executes the ‘rigor lsp` command.

Starts a long-running LSP server over stdio (JSON-RPC). See ‘docs/design/20260517-language-server.md` for the design.

Constant Summary collapse

USAGE = 
"Usage: rigor lsp [options]"

Instance Method Summary collapse

Methods inherited from Command

#initialize

Constructor Details

This class inherits a constructor from Rigor::CLI::Command

Instance Method Details

#run ⇒ Integer

Returns CLI exit status.

Returns:

  • (Integer) —

    CLI exit status.



18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
 
# File 'lib/rigor/cli/lsp_command.rb', line 18

def run
  options = parse_options
  return CLI::EXIT_USAGE if options == :usage_error

  transport = options.fetch(:transport)
  unless transport == "stdio"
    @err.puts("rigor lsp: unsupported transport: #{transport.inspect} (only `stdio` is supported in v1)")
    return CLI::EXIT_USAGE
  end

  require_relative "../language_server"
  require_relative "../configuration"
  require "language_server-protocol"

  # STDIN is read frame-by-frame via the gem's `Io::Reader`;
  # STDOUT is wrapped in `SynchronizedWriter` so concurrent
  # writes from the main dispatch thread + the Debouncer's
  # async threads don't interleave frames. The Loop runs
  # until either STDIN hits EOF or `server.exited?`; the
  # process then exits with the server's recorded code
  # (0 after a clean shutdown+exit, 1 otherwise).
  writer = LanguageServer::SynchronizedWriter.new(
    ::LanguageServer::Protocol::Transport::Io::Writer.new($stdout)
  )
  server, loop_runner = build_server(writer: writer, config_path: options.fetch(:config))
  loop_runner.run
  server.exit_code || 0
end