From: Logan Capaldo <logancapaldo@...>
Date: 2006-03-10T09:28:12+09:00
Subject: Re: setting an environment variable (for libxml2)


On Mar 9, 2006, at 2:53 PM, Une b�vue wrote:

> because i plane to use XML Catalog, i have to set an environment
> variable "XML_CATALOG_FILES" to the path the catalogs reside.
>
> then if i do :
>
> ENV['XML_CATALOG_FILES']="/path/to/catalogs"
>
> does this env var be accessible by libxml2 and ruby-libxml ?
>
> obviously, if i print back :
> ENV.each { |k,v| p "#{k} => #{v}"}
>
> i get it.
>
> when i say accessible from libxml2/ruby-libxml it is only when  
> those are
> called from a ruby script...
> -- 
> une b�vue
>

What you probably need to do is split your script in twain, 1 that  
sets up the environment and one that does the work, eg:

logan:/Users/logan/Projects/Ruby Experiments% cat env1.rb
ENV["CUSTOM_ENV_VAR"] = "Hello"

exec("ruby env2.rb")
logan:/Users/logan/Projects/Ruby Experiments% cat env2.rb
puts "Custom ENV var is #{ENV["CUSTOM_ENV_VAR"]}"
logan:/Users/logan/Projects/Ruby Experiments% ruby env1.rb
Custom ENV var is Hello