Class: GoulahKnifePlugins::EnvironmentDiff

Inherits:
Chef::Knife
  • Object
show all
Defined in:
lib/chef/knife/env-diff.rb

Instance Method Summary collapse

Instance Method Details

#get_cookbook_version(data) ⇒ Object 



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# File 'lib/chef/knife/env-diff.rb', line 74

def get_cookbook_version(data)
  if data['versions'].empty?
    'none'
  else
    data['versions'].first['version']
  end
end

#get_env_cookbooks(env) ⇒ Object 



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# File 'lib/chef/knife/env-diff.rb', line 70

def get_env_cookbooks(env)
  rest.get_rest("environments/#{env}/cookbooks")
end

#run ⇒ Object 



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# File 'lib/chef/knife/env-diff.rb', line 24

def run
  if name_args.size < 2
    ui.error("You need to supply at least two environments")
    show_usage
    exit 1
  end

  firstenv  = name_args.first
  otherenvs = name_args.slice(1, name_args.length - 1)

  from_env   = {}
  from_env[firstenv] = get_env_cookbooks(firstenv)

  to_env   = {}
  otherenvs.each do |env_name|
    to_env[env_name] = get_env_cookbooks(env_name)
  end

  ui.msg "diffing environment " + firstenv + " against " + otherenvs.join(', ') + "\n\n"

  from_env.each_value do |from_cookbooks|
    from_cookbooks.each do |from_cookbook, from_data|
      diff_versions = {}

      from_version = get_cookbook_version(from_data)

      to_env.each do |to_env, to_cookbooks|
        to_version = get_cookbook_version(to_cookbooks[from_cookbook])

        if from_version != to_version || from_version.nil?
          diff_versions[to_env] = to_version
        end
      end

      unless diff_versions.empty?
        ui.msg "cookbook: "+ from_cookbook
        ui.msg " #{firstenv} version: "+ (from_version || 'none')
        diff_versions.each do |env, version|
          ui.msg " #{env} version: "+ version
        end
        ui.msg "\n"
      end
    end
  end
end