Installs a gem in a specific RVM ruby/gemset, and creates wrapper script to always use that specific ruby/gemset.

freeze_gem_cli

#!/usr/bin/env ruby

# Installs a gem in a specific RVM ruby/gemset, and helps you create
# an alias to a CLI/bin script to always use that gemset.
# Wonderfully useful for utility scripts (engineyard's ey or github-gem's gh)
#
# USAGE:
#   freeze_gem_cli engineyard ey
#   freeze_gem_cli github gh ruby-1.8.7p334
#
# Then add the suggested aliases to your .bash_profile

gem_name, gem_executable, rvmruby = ARGV[0..2]

puts "USAGE: freeze_gem_cli GEMNAME [EXEC] [RVMRUBY]" and exit 1 unless gem_name
gem_executable ||= gem_name
gemset_name    = "#{gem_name}-cli-#{gem_executable}"
rvmruby        ||= `rvm current`.strip
rvmgemset      = "#{rvmruby}@#{gemset_name}"

def run_cmd(cmd)
  puts cmd
  puts `#{cmd}`
end

run_cmd "rvm --create #{rvmgemset} exec gem install #{gem_name}"
run_cmd "rvm wrapper #{rvmgemset} --no-prefix #{gem_executable}"

If you are not using this for on default ruby installs then that sounds about right.

Although this functionality might be useful to add directly into RVM :)

I think its a useful addition into rvm; I wanted to spike out the idea. I was struggling to get you to do it :P

I wasn't fully understanding what you were getting at until you did this gist.

And now you get the gist of what I was on about. Hazaar for gists! :)

"You get my drift?"
"No, but I do get your gist..."
;)

This is hard to ingist. Cheers Nic http://engineyard.com http://drnicwilliams.com +1 (415) 322 9556 Engine Yard: Successful Rails Apps through Orchestration

…

On May 12, 2011, at 5:50 PM, ***@***.*** wrote: "You get my drift?" "No, but I do get your gist..." ;) ## Reply to this email directly or view it on GitHub: https://gist.github.com/968697