homebrew-core/Formula/ruby-build.rb

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require 'formula'
class RubyBuild < Formula
homepage 'https://github.com/sstephenson/ruby-build'
url 'https://github.com/sstephenson/ruby-build/tarball/v20121227'
sha1 'db33874fdb2f260fcbcc2202364e5d3cfc261fe6'
head 'https://github.com/sstephenson/ruby-build.git'
option "without-rbenv", "Don't install as an rbenv plugin"
depends_on 'rbenv' unless build.include? 'without-rbenv'
def install
ENV['PREFIX'] = prefix
system "./install.sh"
rbenv_plugins = "#{HOMEBREW_PREFIX}/var/lib/rbenv/plugins"
mkdir_p rbenv_plugins
ln_sf opt_prefix, "#{rbenv_plugins}/#{name}" unless build.include? 'without-rbenv'
end
end