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module Gitlab
module Ci
class CronParser
VALID_SYNTAX_SAMPLE_TIME_ZONE = 'UTC'.freeze
VALID_SYNTAX_SAMPLE_CRON = '* * * * *'.freeze
def initialize(cron, cron_time_zone = 'UTC')
@cron = cron
@cron_time_zone = cron_time_zone
end
def next_time_from(time)
cron_line = try_parse_cron(@cron, @cron_time_zone)
cron_line.next_time(time).in_time_zone(Time.zone) if cron_line.present?
end
def validation
is_valid_cron = try_parse_cron(@cron, VALID_SYNTAX_SAMPLE_TIME_ZONE).present?
is_valid_cron_time_zone = try_parse_cron(VALID_SYNTAX_SAMPLE_CRON, @cron_time_zone).present?
return is_valid_cron, is_valid_cron_time_zone
end
private
def try_parse_cron(cron, cron_time_zone)
begin
Rufus::Scheduler.parse("#{cron} #{cron_time_zone}")
rescue
nil
end
end
end
end
end
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