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Rob Figueiredo d10bec7141 gofmt		6 年之前
.gitignore	e0aa2acff9 Initial commit	13 年之前
.travis.yml	67823cd24d Create .travis.yml	11 年之前
LICENSE	4ab9b1f2d8 Add license	13 年之前
README.md	1f8ec97c87 Functional options, Optional seconds, Overridable parser	6 年之前
constantdelay.go	f2c3314377 Return an error rather than panicking on invalid cron specs	12 年之前
constantdelay_test.go	f2c3314377 Return an error rather than panicking on invalid cron specs	12 年之前
cron.go	1f8ec97c87 Functional options, Optional seconds, Overridable parser	6 年之前
cron_test.go	d10bec7141 gofmt	6 年之前
doc.go	c4355342f3 doc.go: remove markdown link formatting from godoc, which does not render it	6 年之前
go.mod	1e507e218b v3: Merge 'master' and 'v2' to create a v3 branch, and add a go.mod file	6 年之前
option.go	1f8ec97c87 Functional options, Optional seconds, Overridable parser	6 年之前
option_test.go	1f8ec97c87 Functional options, Optional seconds, Overridable parser	6 年之前
parser.go	46e5be361c parser: reject descriptors if not configured to accept them	6 年之前
parser_test.go	46e5be361c parser: reject descriptors if not configured to accept them	6 年之前
spec.go	1e507e218b v3: Merge 'master' and 'v2' to create a v3 branch, and add a go.mod file	6 年之前
spec_test.go	1f8ec97c87 Functional options, Optional seconds, Overridable parser	6 年之前

cron

DRAFT - Upgrading to v3

cron v3 is a major upgrade to the library that addresses all outstanding bugs, feature requests, and clarifications around usage. It is based on a merge of master which contains various fixes to issues found over the years and the v2 branch which contains some backwards-incompatible features like removing cron jobs. In addition, it adds support for Go Modules and cleans up rough edges like the timezone support.

It is in development and will be considered released once a 3.0 version is tagged. It is backwards incompatible with both the v1 and v2 branches.

Updates required:

The v1 branch accepted an optional seconds field at the beginning of the cron spec. This is non-standard and has led to a lot of confusion. The new default parser conforms to the standard as described by the Cron wikipedia page.

UPDATING: To retain the old behavior, construct your Cron with a custom parser:

  cron.New(
      cron.WithParser(
          cron.SecondOptional | cron.Hour | cron.Dom | cron.Month | cron.Dow | cron.Descriptor))

The Cron type now accepts functional options on construction rather than the ad-hoc behavior modification mechanisms before (setting a field, calling a setter).

UPDATING: Code that sets Cron.ErrorLogger or calls Cron.SetLocation must be updated to provide those values on construction.

Background - Cron spec format

There are two cron spec formats in common usage:

The "standard" cron format, described on the Cron wikipedia page and used by the cron Linux system utility.
The cron format used by the Quartz Scheduler, commonly used for scheduled jobs in Java software

The original version of this package included an optional "seconds" field, which made it incompatible with both of these formats. Instead, the schedule parser has been extended to support both types.

README.md

cron

DRAFT - Upgrading to v3

Background - Cron spec format