module IceAge
Constants
- VERSION
- WHITELIST
Public Instance Methods
endure!()
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# File lib/ice_age.rb, line 23 def endure! raise 'not frozen' unless frozen? changes = (Set.new(ENV.to_h) - Set.new(@env)).to_h.keys - WHITELIST unless changes.empty? msg = changes.map {|k| { k => { @env[k] => ENV[k] } }}.to_s raise 'ENV changed after freeze: ' + msg end end
freeze()
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# File lib/ice_age.rb, line 7 def freeze raise 'already frozen' if frozen? @env = ENV.to_h.freeze end
frozen?()
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# File lib/ice_age.rb, line 13 def frozen? !!@env end
restore()
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# File lib/ice_age.rb, line 17 def restore raise 'not frozen' unless frozen? ENV.replace(@env) end