blob: 585888f8e160c6940c175242b0df454f7ebd3795 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
module Bundler
# General purpose class for retrying code that may fail
class Retry
attr_accessor :name, :total_runs, :current_run
class << self
def default_attempts
default_retries + 1
end
alias_method :attempts, :default_attempts
def default_retries
Bundler.settings[:retry]
end
end
def initialize(name, exceptions = nil, retries = self.class.default_retries)
@name = name
@retries = retries
@exceptions = Array(exceptions) || []
@total_runs = @retries + 1 # will run once, then upto attempts.times
end
def attempt(&block)
@current_run = 0
@failed = false
@error = nil
while keep_trying? do
run(&block)
end
@result
end
alias :attempts :attempt
private
def run(&block)
@failed = false
@current_run += 1
@result = block.call
rescue => e
fail(e)
end
def fail(e)
@failed = true
raise e if last_attempt? || @exceptions.any?{ |k| e.is_a?(k) }
return true unless name
Bundler.ui.warn "Retrying#{" #{name}" if name} due to error (#{current_run.next}/#{total_runs}): #{e.class} #{e.message}"
end
def keep_trying?
return true if current_run.zero?
return false if last_attempt?
return true if @failed
end
def last_attempt?
current_run >= total_runs
end
end
end
|
