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simple_configuration.rb
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Sun, Jan 18, 6:47 PM

simple_configuration.rb
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class SimpleConfiguration
include ActiveModel::Model
attr_accessor :included_files, :day, :hour, :minute, :name
INCLUDED_FILE_OPTIONS =
%w{/ /bin /boot /etc /home /lib /media /mnt /opt /root /run /sbin /srv /usr /var}
DAYS = {
monday: :mon,
tuesday: :tue,
wednesday: :wed,
thursday: :thu,
friday: :fri,
saturday: :sat,
sunday: :sun
}
DAY_NAMES = %w{monday tuesday wednesday thursday friday saturday sunday }
validates_inclusion_of :day, in: DAY_NAMES
validates :day, :hour, :minute, presence: true
validates :hour, numericality: { greater_than_or_equal: 0, less_then: 24 }
validates :minute, numericality: { greater_than_or_equal: 0, less_then: 60 }
validates_with NameValidator
# Initializes the configuration's 3 parameters randomnly.
# Default configurations must be randomized in order to distribute the backup server's
# load.
def randomize
self.day = DAY_NAMES.sample
self.hour = rand(24)
self.minute = rand(60)
end
# The day abbreviation
#
# @return [Symbol]
def day_short
DAYS[day.to_sym]
end
# Creates a default config, by adding resources for:
#
# * schedule
# * fileset
# * job
#
# Each resource handles its own defaults.
#
# @param host[Host] the host that will receive the config
def create_config(host)
self.included_files = included_files.keep_if(&:present?).uniq.presence
time_hex = Digest::MD5.hexdigest(Time.now.to_f.to_s).first(4)
schedule = host.schedules.new.default_resource(time_hex, day_short, hour, minute)
fileset = host.filesets.new.default_resource(name, time_hex, files: included_files)
host.job_templates.new(fileset_id: fileset.id, schedule_id: schedule.id).
default_resource(name, time_hex)
end
end

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