[chef] Re: Re: Why is berks install not getting latest cookbook version from Berks API server?

[Zac Stevens < >]

On Thu, Aug 20, 2015 at 3:36 AM, Eric Helgeson < " target="_blank"> > wrote:

~> is pessimistic

From the docs[0]:

 ~>(approximately greater than; also known as “pessimistically greater than”, or “pessimistic”),

​That means it will take the lowest version that fits the constraints given.

​If you're following semantec versioning you could set 

depends 'linux_role', '>= 1.1.0'

​which should pickup all versions in the 1.1.x range​

I'm pretty sure that is incorrect - "~> 1.1.0" will match 1.1.x, while ">= 1.1.0" will match 1.1.x, 1.2.x, 99.100.x, etc.

The rubygems page on the subject[0] gives a fairly good treatment, but the same logic applies to cookbook dependencies.

Zac

 

[0] http://guides.rubygems.org/patterns/#pessimistic-version-constraint