Module: KnifeTopo::CommandHelper

Included in:
BootstrapHelper, KnifeHelper, TopoCreate, TopoDelete, TopoExport, TopoImport, TopoSearch
Defined in:
lib/chef/knife/topo/command_helper.rb

Overview

Knife topo helpers

Instance Method Summary collapse

Instance Method Details

#check_chef_env(chef_env_name) ⇒ Object

make sure the chef environment exists



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# File 'lib/chef/knife/topo/command_helper.rb', line 52

def check_chef_env(chef_env_name)
  return unless chef_env_name
  Chef::Environment.load(chef_env_name) if chef_env_name
rescue Net::HTTPServerException => e
  raise unless e.to_s =~ /^404/
  ui.info 'Creating chef environment ' + chef_env_name
  chef_env = Chef::Environment.new
  chef_env.name(chef_env_name)
  chef_env.create
  chef_env
end

#initialize_cmd_args(args, name_args, new_name_args) ⇒ Object

initialize args for another knife command



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# File 'lib/chef/knife/topo/command_helper.rb', line 25

def initialize_cmd_args(args, name_args, new_name_args)
  args = args.dup
  args.shift(2 + name_args.length)
  new_name_args + args
end

#most_common(vals) ⇒ Object 



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# File 'lib/chef/knife/topo/command_helper.rb', line 64

def most_common(vals)
  return if vals.empty?
  vals.group_by do |val|
    val
  end.values.max_by(&:size).first
end

#resource_exists?(relative_path) ⇒ Boolean

check if resource exists

Returns:

  • (Boolean) 


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# File 'lib/chef/knife/topo/command_helper.rb', line 43

def resource_exists?(relative_path)
  rest.get_rest(relative_path)
  true
rescue Net::HTTPServerException => e
  raise unless e.response.code == '404'
  false
end

#run_cmd(command_class, args) ⇒ Object

run another knife command



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# File 'lib/chef/knife/topo/command_helper.rb', line 32

def run_cmd(command_class, args)
  command = command_class.new(args)
  command.config[:config_file] = config[:config_file]
  command.configure_chef
  command_class.load_deps
  command.run

  command
end