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Contents
module Spring
# Yes, I know this reimplements a bunch of stuff in Active Support, but
# I don't want the Spring client to depend on AS, in order to keep its
# load time down.
class ProcessTitleUpdater
SECOND = 1
MINUTE = 60
HOUR = 60*60
def self.run(&block)
updater = new(&block)
Spring.failsafe_thread {
$0 = updater.value
loop { $0 = updater.next }
}
end
attr_reader :block
def initialize(start = Time.now, &block)
@start = start
@block = block
end
def interval
distance = Time.now - @start
if distance < MINUTE
SECOND
elsif distance < HOUR
MINUTE
else
HOUR
end
end
def next
sleep interval
value
end
def value
block.call(distance_in_words)
end
def distance_in_words(now = Time.now)
distance = now - @start
if distance < MINUTE
pluralize(distance, "sec")
elsif distance < HOUR
pluralize(distance / MINUTE, "min")
else
pluralize(distance / HOUR, "hour")
end
end
private
def pluralize(amount, unit)
"#{amount.to_i} #{amount.to_i == 1 ? unit : "#{unit}s"}"
end
end
end
Version data entries
17 entries across 17 versions & 3 rubygems