module ForemanMaintain::Concerns::SystemHelpers

Public Class Methods

included(klass) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 10
def self.included(klass)
  klass.extend(self)
end

Public Instance Methods

check_min_version(name, minimal_version) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 29
def check_min_version(name, minimal_version)
  current_version = package_version(name)
  if current_version
    return current_version >= version(minimal_version)
  end
end
clean_all_packages(options = {}) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 99
def clean_all_packages(options = {})
  options.validate_options!(:assumeyes)
  yum_options = []
  yum_options << '-y' if options[:assumeyes]
  execute!("yum #{yum_options.join(' ')} clean all", :interactive => true)
  execute!('rm -rf /var/cache/yum')
  execute!('rm -rf /var/cache/dnf')
end
downstream_installation?() click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 36
def downstream_installation?
  execute?('rpm -q satellite') ||
    (execute('rpm -q foreman') =~ /sat.noarch/)
end
execute(command, options = {}) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 57
def execute(command, options = {})
  command_runner = Utils::CommandRunner.new(logger, command, options)
  execution.puts '' if command_runner.interactive? && respond_to?(:execution)
  command_runner.run
  command_runner.output
end
execute!(command, options = {}) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 46
def execute!(command, options = {})
  command_runner = Utils::CommandRunner.new(logger, command, options)
  execution.puts '' if command_runner.interactive? && respond_to?(:execution)
  command_runner.run
  if command_runner.success?
    command_runner.output
  else
    raise command_runner.execution_error
  end
end
execute?(command, input = nil) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 41
def execute?(command, input = nil)
  execute(command, :stdin => input)
  $CHILD_STATUS.success?
end
file_exists?(filename) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 64
def file_exists?(filename)
  File.exist?(filename)
end
find_package(name) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 68
def find_package(name)
  result = execute(%Q(rpm -q '#{name}'))
  if $CHILD_STATUS.success?
    result
  end
end
hostname() click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 75
def hostname
  execute('hostname -f')
end
package_version(name) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 108
def package_version(name)
  # space for extension to support non-rpm distributions
  rpm_version(name)
end
packages_action(action, packages, options = {}) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 87
def packages_action(action, packages, options = {})
  expected_actions = [:install, :update]
  unless expected_actions.include?(action)
    raise ArgumentError, "Unexpected action #{action} expected #{expected_actions.inspect}"
  end
  options.validate_options!(:assumeyes)
  yum_options = []
  yum_options << '-y' if options[:assumeyes]
  execute!("yum #{yum_options.join(' ')} #{action} #{packages.join(' ')}",
           :interactive => true)
end
parse_csv(data) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 113
def parse_csv(data)
  parsed_data = CSV.parse(data)
  header = parsed_data.first
  parsed_data[1..-1].map do |row|
    Hash[*header.zip(row).flatten(1)]
  end
end
parse_json(json_string) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 121
def parse_json(json_string)
  JSON.parse(json_string)
rescue StandardError
  nil
end
rpm_version(name) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 127
def rpm_version(name)
  rpm_version = execute(%Q(rpm -q '#{name}' --queryformat="%{VERSION}"))
  if $CHILD_STATUS.success?
    version(rpm_version)
  end
end
server?() click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 79
def server?
  find_package('foreman')
end
shellescape(string) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 134
def shellescape(string)
  Shellwords.escape(string)
end
smart_proxy?() click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 83
def smart_proxy?
  !server? && find_package('foreman-proxy')
end
version(value) click to toggle source
# File lib/foreman_maintain/concerns/system_helpers.rb, line 138
def version(value)
  Version.new(value)
end