diff options
Diffstat (limited to 'lib/gitlab/ci/cron_parser.rb')
| -rw-r--r-- | lib/gitlab/ci/cron_parser.rb | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/lib/gitlab/ci/cron_parser.rb b/lib/gitlab/ci/cron_parser.rb index bc03658aab8..7334a112ccf 100644 --- a/lib/gitlab/ci/cron_parser.rb +++ b/lib/gitlab/ci/cron_parser.rb @@ -6,8 +6,40 @@ module Gitlab VALID_SYNTAX_SAMPLE_TIME_ZONE = 'UTC' VALID_SYNTAX_SAMPLE_CRON = '* * * * *' - def self.parse_natural(expression, cron_timezone = 'UTC') - new(Fugit::Nat.parse(expression)&.original, cron_timezone) + class << self + def parse_natural(expression, cron_timezone = 'UTC') + new(Fugit::Nat.parse(expression)&.original, cron_timezone) + end + + # This method generates compatible expressions that can be + # parsed by Fugit::Nat.parse to generate a cron line. + # It takes start date of the cron and cadence in the following format: + # cadence = { + # unit: 'day/week/month/year' + # duration: 1 + # } + def parse_natural_with_timestamp(starts_at, cadence) + case cadence[:unit] + when 'day' # Currently supports only 'every 1 day'. + "#{starts_at.min} #{starts_at.hour} * * *" + when 'week' # Currently supports only 'every 1 week'. + "#{starts_at.min} #{starts_at.hour} * * #{starts_at.wday}" + when 'month' + unless [1, 3, 6, 12].include?(cadence[:duration]) + raise NotImplementedError, "The cadence #{cadence} is not supported" + end + + "#{starts_at.min} #{starts_at.hour} #{starts_at.mday} #{fall_in_months(cadence[:duration], starts_at)} *" + when 'year' # Currently supports only 'every 1 year'. + "#{starts_at.min} #{starts_at.hour} #{starts_at.mday} #{starts_at.month} *" + else + raise NotImplementedError, "The cadence unit #{cadence[:unit]} is not implemented" + end + end + + def fall_in_months(offset, start_date) + (1..(12 / offset)).map { |i| start_date.next_month(offset * i).month }.join(',') + end end def initialize(cron, cron_timezone = 'UTC') |