require 'dependency_builder'

s = "
ra0
  sshfs
  apache

rse
  spspublog
  reg
  apache
  sps

elis
  ra0

reg
  sshfs
"

dbuild = DependencyBuilder.new(s)
puts dbuild.to_s

In the above example the input string contained a listing of nested dependencies for each service. The dependency_builder gem groups the services around each dependency as show in the output below.

Output:

sshfs
  ra0
    elis
  reg
    rse
apache
  ra0
  rse
spspublog
  rse
sps
  rse

• dependency_builder https://rubygems.org/gems/dependency_builder

dependency_builder dependency builder linetree gem