Bug: undefined method `hide_cursor' for Reline::GeneralIO:Class (NoMethodError)

[williantenfen]

When running rails console get this error... but it works without spring running:

/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline/line_editor.rb:734:in `render_each_dialog': undefined method `hide_cursor' for Reline::GeneralIO:Class (NoMethodError)

    Reline::IOGate.hide_cursor
                  ^^^^^^^^^^^^
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline/line_editor.rb:651:in `block in render_dialog'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline/line_editor.rb:650:in `each'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline/line_editor.rb:650:in `render_dialog'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline/line_editor.rb:510:in `rerender'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline.rb:330:in `block (3 levels) in inner_readline'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline.rb:328:in `each'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline.rb:328:in `block (2 levels) in inner_readline'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline.rb:403:in `block in read_io'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline.rb:373:in `loop'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline.rb:373:in `read_io'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline.rb:326:in `block in inner_readline'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline.rb:324:in `loop'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline.rb:324:in `inner_readline'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/reline.rb:254:in `readmultiline'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/forwardable.rb:238:in `readmultiline'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/forwardable.rb:238:in `readmultiline'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb/input-method.rb:417:in `gets'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb.rb:539:in `block (2 levels) in eval_input'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb.rb:770:in `signal_status'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb.rb:538:in `block in eval_input'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb/ruby-lex.rb:284:in `lex'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb/ruby-lex.rb:253:in `block (2 levels) in each_top_level_statement'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb/ruby-lex.rb:250:in `loop'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb/ruby-lex.rb:250:in `block in each_top_level_statement'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb/ruby-lex.rb:249:in `catch'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb/ruby-lex.rb:249:in `each_top_level_statement'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb.rb:557:in `eval_input'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb.rb:491:in `block in run'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb.rb:490:in `catch'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb.rb:490:in `run'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/irb.rb:419:in `start'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/gems/3.1.0/gems/railties-7.0.8.1/lib/rails/commands/console/console_command.rb:74:in `start'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/gems/3.1.0/gems/railties-7.0.8.1/lib/rails/commands/console/console_command.rb:19:in `start'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/gems/3.1.0/gems/railties-7.0.8.1/lib/rails/commands/console/console_command.rb:106:in `perform'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/gems/3.1.0/gems/thor-1.3.1/lib/thor/command.rb:28:in `run'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/gems/3.1.0/gems/thor-1.3.1/lib/thor/invocation.rb:127:in `invoke_command'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/gems/3.1.0/gems/thor-1.3.1/lib/thor.rb:527:in `dispatch'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/gems/3.1.0/gems/railties-7.0.8.1/lib/rails/command/base.rb:87:in `perform'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/gems/3.1.0/gems/railties-7.0.8.1/lib/rails/command.rb:48:in `invoke'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/gems/3.1.0/gems/railties-7.0.8.1/lib/rails/commands.rb:18:in `<main>'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/gems/3.1.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/gems/3.1.0/gems/bootsnap-1.13.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:32:in `require'
	from /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/gems/3.1.0/gems/zeitwerk-2.6.13/lib/zeitwerk/kernel.rb:34:in `require'
	from /Users/willian/Development/bones/bin/rails:9:in `<main>'
	from <internal:/Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
	from <internal:/Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
	from -e:1:in `<main>'

Versions:

rails: 7.0.8.1
spring (4.1.1)
    spring-watcher-listen (2.1.0)
      listen (>= 2.7, < 4.0)
      spring (>= 4)

gem environment

gem environment
RubyGems Environment:
  - RUBYGEMS VERSION: 3.3.7
  - RUBY VERSION: 3.1.2 (2022-04-12 patchlevel 20) [arm64-darwin21]
  - INSTALLATION DIRECTORY: /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/gems/3.1.0
  - USER INSTALLATION DIRECTORY: /Users/willian/.gem/ruby/3.1.0
  - RUBY EXECUTABLE: /Users/willian/.asdf/installs/ruby/3.1.2/bin/ruby
  - GIT EXECUTABLE: /usr/bin/git
  - EXECUTABLE DIRECTORY: /Users/willian/.asdf/installs/ruby/3.1.2/bin
  - SPEC CACHE DIRECTORY: /Users/willian/.gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /Users/willian/.asdf/installs/ruby/3.1.2/etc
  - RUBYGEMS PLATFORMS:
     - ruby
     - arm64-darwin-21
  - GEM PATHS:
     - /Users/willian/.asdf/installs/ruby/3.1.2/lib/ruby/gems/3.1.0
     - /Users/willian/.gem/ruby/3.1.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
     - "gem" => "--no-rdoc --no-ri"
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /Users/willian/.asdf/installs/ruby/3.1.2/bin
      /Users/willian/.asdf/shims
     - /opt/homebrew/opt/asdf/libexec/bin
     - /opt/homebrew/bin
     - /usr/local/bin
     - /System/Cryptexes/App/usr/bin
     - /usr/bin
     - /bin
     - /usr/sbin
     - /sbin

uname: uname -a Darwin MacBook-Pro.local 23.4.0 Darwin Kernel Version 23.4.0: Fri Mar 15 00:10:42 PDT 2024; root:xnu-10063.101.17~1/RELEASE_ARM64_T6000 arm64

[williantenfen]

Didn't had time to investigate. But according to A.I:

The problem is with Spring caching processes with incorrect terminal detection. Here's what's happening:

Root Cause Analysis

• Spring version: 4.1.3
• Reline version: 0.3.1 (default gem)
• Issue: Spring is caching a process where Reline::IOGate is set to Reline::GeneralIO instead of Reline::ANSI
• The hide_cursor method exists in Reline::ANSI but not in Reline::GeneralIO @tenderlove
• When Spring starts, it detects the terminal incorrectly and caches this state. The Reline::IOGate gets set to GeneralIO (for non-TTY environments) instead of ANSI (for proper terminals).

Proposed workaround on rails project config/spring.rb:

Spring.after_fork do
  puts "Spring.after_fork is running!!!!"
  # Force ANSI mode if we're in a proper terminal
  if defined?(Reline) && ($stdout.isatty && ENV["TERM"].to_s.exclude?("dumb"))
    puts "Reline is defined and stdout is a tty and TERM is not dumb!!!!"
    begin
      require "reline/ansi"
      Reline::IOGate = Reline::ANSI
    rescue LoadError
      # Fallback to default behavior
    end
  end
end