Noicycle

Utility gem to calculate dates involved in a Tower of Hanoi backup rotation method.

View the Project on GitHub dirtyhenry/noicycle

Noicycle

Utility gem to calculate dates involved in a Tower of Hanoi backup rotation method.

Installation

Add this line to your application's Gemfile:

gem 'noicycle'

And then execute:

$ bundle

Or install it yourself as:

$ gem install noicycle

Usage

To get the dates of a 7-tape backup from a give reference date:

ref_date = Date.parse("5th May 2013")
noicycle.tapes(ref_date, 7)

The result is a Hash that contains tape-keys and date values. For instance, on 24th september 2013, the upper code returned the following hash:

{
    2=>#<Date: 2013-09-24 ((2456560j,0s,0n),+0s,2299161j)>, 
    1=>#<Date: 2013-09-23 ((2456559j,0s,0n),+0s,2299161j)>, 
    3=>#<Date: 2013-09-22 ((2456558j,0s,0n),+0s,2299161j)>, 
    4=>#<Date: 2013-09-18 ((2456554j,0s,0n),+0s,2299161j)>, 
    7=>#<Date: 2013-09-10 ((2456546j,0s,0n),+0s,2299161j)>, 
    5=>#<Date: 2013-08-25 ((2456530j,0s,0n),+0s,2299161j)>, 
    6=>#<Date: 2013-08-09 ((2456514j,0s,0n),+0s,2299161j)>
}

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