2020-12-08 18:40 阅读 6

tty-file breaks tty-which

ruby: 2.4.0p0 (2016-12-24 revision 57164) [x86_64-linux] tty: 0.6.0 tty-which: 0.2.1 OS: Linux (Arch)

With 0.5.0, I could use TTY::Which by requiring tty e.g.:

require 'tty'

TTY::Which.which 'ruby' # => "/usr/bin/ruby"

That no longer works in 0.6.0. It appears that unqualified references to File in TTY::Which are now being resolved to TTY::File rather than ::File.

I can work around this by requiring tty-which directly, but this was an unexpected (breaking) change, and I can't see any mention of it in the changelog.

(This might affect other tty- modules. Some of them have qualified ::File references, some unqualified, and some (e.g. tty-color) have a mixture of the two.)


gem 'tty', '= 0.5.0'
require 'tty'
puts TTY::Which.which('ruby')


$ ruby test-0.5.0.rb


gem 'tty', '= 0.6.0'
require 'tty'
puts TTY::Which.which('ruby')


$ ruby test-0.6.0.rb
~/.gem/ruby/2.4.0/gems/tty-which-0.2.1/lib/tty/which.rb:157:in `file_with_path?': undefined method `expand_path' for TTY::File:Module (NoMethodError)
    from ~/.gem/ruby/2.4.0/gems/tty-which-0.2.1/lib/tty/which.rb:23:in `which'
    from test-0.6.0.rb:3:in `<main>'


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4条回答 默认 最新

  • weixin_39746652 weixin_39746652 2020-12-08 18:40

    Thank you for reporting this! I had no intention of breaking things but releasing this version was a rather large task. I will fix this and release new update shortly. There is definitely great lesson here in managing namespaces.

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  • weixin_39746652 weixin_39746652 2020-12-08 18:40

    The following libs have been fixed and released with new patch levels:

    • tty-which (v0.2.2)
    • tty-editor (v0.1.2)
    • tty-command (v0.3.2)
    • tty-color (v0.4.2)
    • tty-prompt (v0.10.1)

    Given that I only updated patch levels, you should be able to use tty v0.6.0. Please remove any tty components and then bundle to ensure the latest gems are installed. I've tested and all is fine for me but let me know if the issue is fixed for you.

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  • weixin_39870155 weixin_39870155 2020-12-08 18:40


    I upgraded with:

    gem update

    And the components have been updated, and require 'tty' works as expected. :thumbsup:

    Please remove any tty components and then bundle to ensure the latest gems are installed.

    I didn't do this, since my affected scripts aren't packaged as gems, but it looks like I should have since they ended up generating the following warning on each run:

    WARN: Unresolved specs during Gem::Specification.reset:
          tty-color (~> 0.4.0)
          tty-command (~> 0.3.0)
          tty-editor (~> 0.1.0)
          tty-prompt (~> 0.10.0)
          tty-which (~> 0.2.0)
    WARN: Clearing out unresolved specs.
    Please report a bug if this causes problems.

    But that appears to be an issue with RubyGems. In my case, gem cleanup didn't work, but uninstalling and reinstalling the gems one by one has solved it:

    $ gem uninstall     \
        tty-color       \
        tty-cursor      \
        pastel          \
        tty-command     \
        tty-prompt      \
        tty-which       \
        tty-editor      \
        tty-file        \
        tty-screen      \
        tty-pager       \
        tty-platform    \
        tty-progressbar \
        tty-spinner     \
        tty-table       \
    $ gem install tty
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  • weixin_39746652 weixin_39746652 2020-12-08 18:40

    Glad it worked! From my experience maintaining scripts and such, using bundler is rather good idea, otherwise you may open yourself to dependency hell and make it hard to maintain things. Bundler is not only good for gem development but any Ruby development unless of course you fancy vendoring dependencies with your script.

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