class Chef::Provider::Group::Pw

Public Instance Methods

create_group() click to toggle source

Create the group

# File lib/chef/provider/group/pw.rb, line 40
def create_group
  command = [ "pw", "groupadd", set_options ]
  unless new_resource.members.empty?
    # pw group[add|mod] -M is used to set the full membership list on a
    # new or existing group. Because pw groupadd does not support the -m
    # and -d options used by manage_group, we treat group creation as a
    # special case and use -M.
    logger.debug("#{new_resource} setting group members: #{new_resource.members.join(",")}")
    command += [ "-M", new_resource.members.join(",") ]
  end

  shell_out!(command)
end
define_resource_requirements() click to toggle source
# File lib/chef/provider/group/pw.rb, line 29
def define_resource_requirements
  super

  requirements.assert(:all_actions) do |a|
    a.assertion { ::File.exist?("/usr/sbin/pw") }
    a.failure_message Chef::Exceptions::Group, "Could not find binary /usr/sbin/pw for #{new_resource}"
    # No whyrun alternative: this component should be available in the base install of any given system that uses it
  end
end
load_current_resource() click to toggle source
# File lib/chef/provider/group/pw.rb, line 25
def load_current_resource
  super
end
manage_group() click to toggle source

Manage the group when it already exists

# File lib/chef/provider/group/pw.rb, line 55
def manage_group
  member_options = set_members_options
  if member_options.empty?
    shell_out!("pw", "groupmod", set_options)
  else
    member_options.each do |option|
      shell_out!("pw", "groupmod", set_options, option)
    end
  end
end
remove_group() click to toggle source

Remove the group

# File lib/chef/provider/group/pw.rb, line 67
def remove_group
  shell_out!("pw", "groupdel", new_resource.group_name)
end
set_members_options() click to toggle source

Set the membership option depending on the current resource states

# File lib/chef/provider/group/pw.rb, line 86
def set_members_options
  opts = [ ]
  members_to_be_added = [ ]
  members_to_be_removed = [ ]

  if new_resource.append
    # Append is set so we will only add members given in the
    # members list and remove members given in the
    # excluded_members list.
    if new_resource.members && !new_resource.members.empty?
      new_resource.members.each do |member|
        members_to_be_added << member unless current_resource.members.include?(member)
      end
    end

    if new_resource.excluded_members && !new_resource.excluded_members.empty?
      new_resource.excluded_members.each do |member|
        members_to_be_removed << member if current_resource.members.include?(member)
      end
    end
  else
    # Append is not set so we're resetting the membership of
    # the group to the given members.
    members_to_be_added = new_resource.members.dup
    current_resource.members.each do |member|
      # No need to re-add a member if it's present in the new
      # list of members
      if members_to_be_added.include? member
        members_to_be_added.delete member
      else
        members_to_be_removed << member
      end
    end
  end

  unless members_to_be_added.empty?
    logger.debug("#{new_resource} adding group members: #{members_to_be_added.join(",")}")
    opts << [ "-m", members_to_be_added.join(",") ]
  end

  unless members_to_be_removed.empty?
    logger.debug("#{new_resource} removing group members: #{members_to_be_removed.join(",")}")
    opts << [ "-d", members_to_be_removed.join(",") ]
  end

  opts
end
set_options() click to toggle source

Little bit of magic as per Adam's useradd provider to pull and assign the command line flags

Returns

<string>

A string containing the option and then the quoted value

# File lib/chef/provider/group/pw.rb, line 75
def set_options
  opts = [ new_resource.group_name ]
  if new_resource.gid && (current_resource.gid != new_resource.gid)
    logger.trace("#{new_resource}: current gid (#{current_resource.gid}) doesn't match target gid (#{new_resource.gid}), changing it")
    opts << "-g"
    opts << new_resource.gid
  end
  opts
end