Class: Expire::Rules

Inherits:
Object
  • Object
show all
Defined in:
lib/expire/rules.rb

Overview

How backups are expired

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(given = {}) ⇒ Rules

Returns a new instance of Rules.



21
22
23
24
25
26
27
28
29
30
 
# File 'lib/expire/rules.rb', line 21

def initialize(given = {})
  @rules = given.map do |rule_name, value|
    if value.respond_to? :rank
      value
    else
      rule_class = rule_class_for(rule_name)
      rule_class.from_value(value)
    end
  end
end

Instance Attribute Details

#rules ⇒ Object (readonly)

Returns the value of attribute rules.



32
33
34
 
# File 'lib/expire/rules.rb', line 32

def rules
  @rules
end

Class Method Details

.from_options(options) ⇒ Object 



6
7
8
9
10
11
12
 
# File 'lib/expire/rules.rb', line 6

def self.from_options(options)
  known_rules = RuleList.name_symbols

  rule_options = options.select { |opt, _| known_rules.include?(opt) }

  new(rule_options)
end

.from_yaml(file_name) ⇒ Object 



14
15
16
17
18
19
 
# File 'lib/expire/rules.rb', line 14

def self.from_yaml(file_name)
  pathname = Pathname.new(file_name)
  yaml_text = pathname.read
  yaml_rules = YAML.safe_load(yaml_text, symbolize_names: true)
  new(yaml_rules)
end

Instance Method Details

#any? ⇒ Boolean

Returns:

  • (Boolean) 


34
35
36
 
# File 'lib/expire/rules.rb', line 34

def any?
  rules.any?
end

#apply(backups, reference_time) ⇒ Object 



38
39
40
41
42
 
# File 'lib/expire/rules.rb', line 38

def apply(backups, reference_time)
  rules.sort.each { |rule| rule.apply(backups, reference_time) }

  backups
end

#count ⇒ Object 



44
45
46
 
# File 'lib/expire/rules.rb', line 44

def count
  @rules.length
end

#merge(prior_rules) ⇒ Object 



48
49
50
 
# File 'lib/expire/rules.rb', line 48

def merge(prior_rules)
  self.class.new(to_h.merge(prior_rules.to_h))
end

#to_h ⇒ Object 



52
53
54
 
# File 'lib/expire/rules.rb', line 52

def to_h
  rules.map { |rule| [rule.name.to_sym, rule] }.to_h
end