Class: RedisCopy::Strategy::New

Inherits:
Object
  • Object
show all
Includes:
RedisCopy::Strategy
Defined in:
lib/redis-copy/strategy/new.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods included from RedisCopy::Strategy

#initialize, load, #to_s

Class Method Details

.compatible?(redis) ⇒ Boolean

Returns:

  • (Boolean) 


23
24
25
26
27
28
29
 
# File 'lib/redis-copy/strategy/new.rb', line 23

def self.compatible?(redis)
  maj, min, *_ = redis.info['redis_version'].split('.').map(&:to_i)
  return false unless maj >= 2
  return false unless min >= 6

  return true
end

Instance Method Details

#copy(key) ⇒ Object 



8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
# File 'lib/redis-copy/strategy/new.rb', line 8

def copy(key)
  ttl = @src.ttl(key)
  # TTL returns seconds, -1 means none set
  # RESTORE ttl is in miliseconds, 0 means none set
  translated_ttl = (ttl && ttl > 0) ? (ttl * 1000) : 0

  dumped_value = @src.dump(key)
  @dst.restore(key, translated_ttl, dumped_value)

  return true
rescue Redis::CommandError => error
  @ui.debug("ERROR: #{error}")
  return false
end