Class: Chef::Knife::Exec

Inherits:
Chef::Knife show all
Defined in:
lib/chef/knife/exec.rb

Instance Attribute Summary

Attributes inherited from Chef::Knife

#name_args, #ui

Instance Method Summary collapse

Methods inherited from Chef::Knife

#api_key, #apply_computed_config, category, common_name, #config_file_settings, #configure_chef, #create_object, #delete_object, deps, #format_rest_error, guess_category, #highlight_config_error, #humanize_exception, #humanize_http_exception, inherited, #initialize, list_commands, load_commands, load_deps, #locate_config_file, #merge_configs, msg, #noauth_rest, #parse_options, #read_config_file, reset_subcommands!, #rest, run, #run_with_pretty_exceptions, #server_url, #show_usage, snake_case_name, subcommand_category, subcommand_class_from, subcommand_loader, subcommands, subcommands_by_category, ui, unnamed?, use_separate_defaults?, #username

Methods included from Mixin::ConvertToClassName

#convert_to_class_name, #convert_to_snake_case, #filename_to_qualified_string, #snake_case_basename

Methods included from Mixin::PathSanity

#enforce_path_sanity

Constructor Details

This class inherits a constructor from Chef::Knife

Instance Method Details

#find_script(x) ⇒ Object 



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# File 'lib/chef/knife/exec.rb', line 63

def find_script(x)
  # Try to find a script. First try expanding the path given.
  script = File.expand_path(x)
  return script if File.exists?(script)

  # Failing that, try searching the script path. If we can't find
  # anything, fail gracefully.
  Chef::Log.debug("Searching script_path: #{config[:script_path].inspect}")

  config[:script_path].each do |path|
    path = File.expand_path(path)
    test = File.join(path, x)
    Chef::Log.debug("Testing: #{test}")
    if File.exists?(test)
      script = test
      Chef::Log.debug("Found: #{test}")
      return script
    end
  end
  ui.error("\"#{x}\" not found in current directory or script_path, giving up.")
  exit(1)
end

#run ⇒ Object 



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# File 'lib/chef/knife/exec.rb', line 40

def run
  config[:script_path] ||= Array(Chef::Config[:script_path])

  # Default script paths are chef-repo/.chef/scripts and ~/.chef/scripts
  config[:script_path] << File.join(Chef::Knife.chef_config_dir, 'scripts') if Chef::Knife.chef_config_dir
  config[:script_path] << File.join(ENV['HOME'], '.chef', 'scripts') if ENV['HOME']

  scripts = Array(name_args)
  context = Object.new
  Shell::Extensions.extend_context_object(context)
  if config[:exec]
    context.instance_eval(config[:exec], "-E Argument", 0)
  elsif !scripts.empty?
    scripts.each do |script|
      file = find_script(script)
      context.instance_eval(IO.read(file), file, 0)
    end
  else
    script = STDIN.read
    context.instance_eval(script, "STDIN", 0)
  end
end