When-Cron

A basic cron implementation in Ruby.

Installation

Add this line to your application's Gemfile:

gem 'when-cron'

And then execute:

$ bundle

Or install it yourself as:

$ gem install when-cron

Usage

Compare to anything that has an interface like Ruby's Time class with ==.

When::Cron.new('* * * * *') == Time.now # => true

Numbers, *, and abbreviations (SUN, JAN, etc) are supported for values.

, - and / are supported as operators.

When::Cron.valid?('a b c d e') # => false When::Cron.valid('a b c d e') # => nil

When::Cron will only validate your string when specifically asked. This allows faster analysis of previously validated strings, but might lead to silent failures for invalid strings.

When::Cron.new('100 * * * *') == Time.now # => false

When::Cron will raise an error for extremely nonsensical cron strings.

When::Cron.new('this is getting ridiculous') # => raises When::Cron::InvalidString

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request