Text echoes after using backtick on Windows 11 command prompt/powershell

Description

What are your expected behavior and actual behavior of your environment?

After using a backtick command, Readline behaves strangely, sometimes it echoes all input and sometimes it doesn't show my input at all.

older version of irb/reline

irb(main):001:0> `choco -v`
=> "2.2.0\n"
irb(main):002:0> irb(main):002:0> p█████████      irb(main):002:0> pu       ppppppppirb(main):002:0> put      ppirb(main):002:0> puts  irb(main):002:0> puts irb(main):002:0> puts 'irb(main):002:0' puts 'hirb(main):002:0' puts 'heirb(main):002:0' puts 'helirb(main):002:0' puts 'hellirb(main):002:0' puts 'helloirb(main):002:0' puts 'hello'hello
=> nil
irb(main):003:0> irb(main):003:0> eeeeeeeeeeeeeirb(main):003:0> ex        eeeeirb(main):003:0> exi  eeirb(main):003:0> exitee

other times (latest irb/reline) it doesn't show my input until I press 'enter'

irb(main):001> `choco -v`
=> "2.2.0\n"
i▀irb(main):002> puts 'hi'
hi
=> nil
i▀irb(main):003> exit

Terminal Emulator

What's your terminal emulator?
Windows 11 Powershell/Terminal

ruby 3.1.3p185 (2022-11-24 revision 1a6b16756e)

*** LOCAL GEMS ***
irb (1.12.0)
reline (0.5.1)

Adding these gems seem to workaround the issue for me for now

gem 'readline'
gem 'readline-ext'

edit: these gems do cause copy/paste to behave oddly so it's more of a trade-off than workaround now

For investigation, can you check these value before and after problem occurs?

Reline::IOGage.get_screen_size
Reline::IOGage.get_console_screen_buffer_info
STDIN.winsize

Does it happens with specific command or any command?

I don't see the issue with commands like echo "hello", but other apps like ruby -v, chromedriver -v or choco are all issues

irb(main):002> Reline::IOGate.get_screen_size
=> [30, 120]
irb(main):003> Reline::IOGate.get_console_screen_buffer_info
=> "x\x00\x1E\x00\x00\x00\x1D\x00\a\x00\x00\x00\x00\x00w\x00\x1D\x00x\x00\x1E\x00"
irb(main):004> STDIN.winsize
(irb):4:in `winsize': Bad file descriptor - <STDIN> (Errno::EBADF)
        from (irb):4:in `<main>'
        from C:/Ruby31-x64/lib/ruby/gems/3.1.0/gems/irb-1.12.0/exe/irb:9:in `<top (required)>'
        from C:/Ruby31-x64/bin/irb:32:in `load'
        from C:/Ruby31-x64/bin/irb:32:in `<main>'

after

irb(main):006> `chromedriver -v`
=> "ChromeDriver 123.0.6312.122 (31f8248cdd90acbac59f700b603fed0b5967ca50-refs/branch-heads/6312@{#824})\n"
iirb(main):007> Reline::IOGate.get_screen_size
=>
[1,
 1]
iirb(main):008> Reline::IOGate.get_console_screen_buffer_info
=> nil
i▀irb(main):009> STDIN.winsize
(irb):9:in `winsize': Bad file descriptor - <STDIN> (Errno::EBADF)
        from (irb):9:in `<main>'
        from C:/Ruby31-x64/lib/ruby/gems/3.1.0/gems/irb-1.12.0/exe/irb:9:in `<top (required)>'
        from C:/Ruby31-x64/bin/irb:32:in `load'
        from C:/Ruby31-x64/bin/irb:32:in `<main>'

Tried with Ruby 3.2 and reline 0.5.7 in Windows 11 Powershell, and it still behaves oddly.

I can see that GetConsoleScreenBufferInfo is returning 0 which indicates an issue but not sure what is causing it. Fiddle.win32_last_error shows 6, which seems to map to ERROR_INVALID_HANDLE

reline/lib/reline/windows.rb

Line 337 in a5b5298

return if @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi) == 0

Fix looks good to me in v.0.5.10. Thanks!

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Text echoes after using backtick on Windows 11 command prompt/powershell #676

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Text echoes after using backtick on Windows 11 command prompt/powershell #676

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andrewngo commented on Apr 10, 2024

tompng commented on Apr 11, 2024

andrewngo commented on Apr 11, 2024

andrewngo commented on May 23, 2024

andrewngo commented on Sep 6, 2024

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