Cygwin Ruby and $LOAD_PATH

Cygwin Ruby and $LOAD_PATH

[Steven Penny]

Cygwin Ruby $LOAD_PATH is under "/usr":

    $ ruby -e 'puts $LOAD_PATH' | sort
    /usr/lib/ruby/2.3.0
    /usr/lib/ruby/vendor_ruby/2.3.0
    /usr/local/lib/ruby/site_ruby/2.3.0
    /usr/local/share/ruby/site_ruby
    /usr/share/gems/gems/did_you_mean-1.0.2/lib
    /usr/share/ruby/2.3.0
    /usr/share/ruby/vendor_ruby
    /usr/share/rubygems

but Gems get installed to "/home":

    $ gem install org-ruby coderay
    $ gem which org-ruby coderay
    /home/Steven/.gem/ruby/2.3.0/gems/org-ruby-0.9.12/lib/org-ruby.rb
    /home/Steven/.gem/ruby/2.3.0/gems/coderay-1.1.2/lib/coderay.rb

This causes the Gems to not be found:

    $ cat alpha.org
    #+BEGIN_SRC rust
    fn main() {
      println!("alpha beta");
    }
    #+END_SRC

    $ org-ruby -d alpha.org
    Exception `LoadError' at
    /usr/local/share/ruby/site_ruby/rubygems/core_ext/kernel_require.rb:54 -
    cannot load such file -- coderay


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Re: Cygwin Ruby and $LOAD_PATH

[Yaakov Selkowitz]

On Mon, 2019-04-15 at 21:01 -0700, Steven Penny wrote:
> Cygwin Ruby $LOAD_PATH is under "/usr":
> but Gems get installed to "/home":

Correct, just as on Linux.

> This causes the Gems to not be found:

WFM.

> 
>     $ org-ruby -d alpha.org
>     Exception `LoadError' at
>     /usr/local/share/ruby/site_ruby/rubygems/core_ext/kernel_require.rb:54 -
      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

That doesn't look like it's from Cygwin's rubygems package.

--
Yaakov



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Re: Cygwin Ruby and $LOAD_PATH

[Steven Penny]

On Tue, 16 Apr 2019 09:35:48, Yaakov Selkowitz wrote:
>>     $ org-ruby -d alpha.org
>>     Exception `LoadError' at
>>     /usr/local/share/ruby/site_ruby/rubygems/core_ext/kernel_require.rb:54 -
>       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 
> That doesn't look like it's from Cygwin's rubygems package.

Correct. Not sure how that happened but Ive since deleted the files and
reinstalled. However the error persists:

    $ org-ruby -d alpha.org
    Exception `LoadError' at
    /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:55 - cannot load
    such file -- coderay

I found a fix like this:

diff --git a/lib/org-ruby/html_output_buffer.rb
b/lib/org-ruby/html_output_buffer.rb
index 9d6a061..c0d5f2e 100644
--- a/lib/org-ruby/html_output_buffer.rb
+++ b/lib/org-ruby/html_output_buffer.rb
@@ -44,6 +44,7 @@ module Orgmode
         rescue LoadError
           # Pygments is not supported so we try instead with CodeRay
           begin
+            gem 'coderay'
             require 'coderay'
           rescue LoadError
             # No code syntax highlighting

However it turns out that was a red herring. The problem isnt $LOAD_PATH, the
problem is my source file:

    $ cat alpha.org
    #+BEGIN_SRC rust
    fn main() {
       println!("alpha beta");
    }
    #+END_SRC

Coderay does not support Rust currently:

https://github.com/rubychan/coderay/issues/208

If I try again with Ruby code it works fine, even without any patches:

$ cat beta.org
#+BEGIN_SRC ruby
puts 'hello world'
#+END_SRC

$ org-ruby -d beta.org
Exception `LoadError' at
/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:55 - cannot load such
file -- coderay
<pre class="src" lang="ruby">
puts <span style="background-color:hsla(0,100%,50%,0.05)">
<span style="color:#710">'</span><span style="color:#D20">hello world</span>
<span style="color:#710">'
</span></span>
</pre>

Thanks for the response - sorry for the noise.


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