What is this?

A crontab(5) parser.

How to install?

In your Gemfile:

gem 'cronman', 'git: git@github.com:renatomoya/cronman.git'

How to use?

crontab = Cronman.parse(src)

from_date = Date.parse('2009-10-10')
to_date = Date.parse('2009-10-20')

crontab.entries.each do |entry|
  # Access the cron definition
  puts entry.cron_definition

  # Access the cron definition translation
  puts entry.translation.join(' ')

  # Access the command
  puts entry.command

  # Access parsed cron definition
  puts entry.schedule

  # Filtering is easy!
  e.schedule.from(from_date).until(to_date) do |timing|
   puts timing
  end
end

Most of this code is not mine. I borrowed it from @sakuro gem crontab. I added a few missing features for a personal project called cronman.