Asdf: ruby: no Ruby script found in input (LoadError) when passing ruby -S

Created on 17 Jun 2016 · 6Comments · Source: asdf-vm/asdf

Having the same issue that https://github.com/rbenv/rbenv/issues/622 describes. I'm trying to use ruby installed from asdf with SublimeLinter rubocop

Source

cmckni3

👍3

Most helpful comment

I've taken a look at this and here are my findings:

the error is easy to replicate with the following: ruby -S irb #=> no Ruby script found in input (LoadError)
from ruby --help the -S switch "look(s) for the script using PATH environment variable"
the PATH environment variable will start with $HOME/.asdf/bin:/$HOME/.asdf/shims
therefore the "script" irb it tries to invoke is the shim located in /Users/your_username/.asdf/shims
the script located at $HOME/.asdf/shims/irb is not a ruby script, it's a batch script -- as a shim it will call asdf-exec to execute the script against the version of ruby specified in .tool-versions
because it's not a ruby script (i.e. does not start with #!/usr/bin/env ruby), it results in the error no Ruby script found in input (LoadError)
what we really want is to execute the script, in the case irb, from the installed ruby e.g. $HOME/.asdf/installs/ruby/2.3.2/bin

I've come up with a solution that resolves the error, but unsure if this is the direction you would like to take. I've simply prepended the install_path of the desired ruby version to PATH at the end of $HOME/.asdf/plugins/ruby/bin/exec-env. This is the line I appended:

 export PATH=$install_path/bin:$PATH

The path could be prepended conditionally based on the -S switch being present. If this is acceptable solution I'm happy to create a PR for https://github.com/asdf-vm/asdf-ruby. Please let me know.

nicholasjhenry on 20 Nov 2016

👍2

All 6 comments

@cmckni3 Thanks for reporting. I'll look into it today.

HashNuke on 17 Jun 2016

Same problem here. Any progress?

ShallmentMo on 9 Oct 2016

I've taken a look at this and here are my findings:

the error is easy to replicate with the following: ruby -S irb #=> no Ruby script found in input (LoadError)
from ruby --help the -S switch "look(s) for the script using PATH environment variable"
the PATH environment variable will start with $HOME/.asdf/bin:/$HOME/.asdf/shims
therefore the "script" irb it tries to invoke is the shim located in /Users/your_username/.asdf/shims
the script located at $HOME/.asdf/shims/irb is not a ruby script, it's a batch script -- as a shim it will call asdf-exec to execute the script against the version of ruby specified in .tool-versions
because it's not a ruby script (i.e. does not start with #!/usr/bin/env ruby), it results in the error no Ruby script found in input (LoadError)
what we really want is to execute the script, in the case irb, from the installed ruby e.g. $HOME/.asdf/installs/ruby/2.3.2/bin

 export PATH=$install_path/bin:$PATH

The path could be prepended conditionally based on the -S switch being present. If this is acceptable solution I'm happy to create a PR for https://github.com/asdf-vm/asdf-ruby. Please let me know.

nicholasjhenry on 20 Nov 2016

👍2

@nicholasjhenry this work for me. Thanks a lot.

ShallmentMo on 21 Nov 2016

Just found this issue when trying to run rake cucumber on a Rails project. Got around it meanwhile running cucumber directly without rake.

lobo-tuerto on 30 Dec 2016

Hi,

Please can someone kindly provide an update with regards to this issue?
The workaround suggested by @nicholasjhenry works perfectly well for me but I really don't like have to hack installed files in this way.

Given this was raised around 3 months ago can I be so bold as to suggest you either accept a pull request or you close this issue.

Keep up the fantastic work though - asdf is a fantastic tool!

Thanks.