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