So Puppet DSL is ruby like then....
Think thats where I was going wrong. I went to the ruby page
Craig & Robert thanks.
Alex
On Friday, 5 August 2016 00:50:54 UTC+10, R.I. Pienaar wrote:
>
>
>
> ----- Original Message -----
> > From: "Robert Poulson" <robp...@gmail.com <javascript:>>
> > To: "puppet-users" <puppet...@googlegroups.com <javascript:>>
> > Sent: Thursday, 4 August, 2016 16:42:21
> > Subject: Re: [Puppet Users] Re: Puppet .... ruby regex
>
> >>
> >> $pp_shortcertname= "${trusted['certname']}".match(/([^.]+)\./)[1]
> >>
> >> not sure I fully understand why this works and [] doesn't.
> >>
> >> Not 100% sure I understand what the [1] does !
> >>
> >
> > The parentheses are for capturing the matching text, and \1 for re-using
> it
> > as a backreference; [1] outside of the pattern.
> >
> > See
> http://ruby-doc.org/core-2.1.1/Regexp.html#class-Regexp-label-Capturing
>
> this is not a ruby question, the code in question is PUPPET DSL.
>
> The DSL match function looks for a regex and returns what it finds and any
> capture groups.
>
> You access the 2nd item in the array as array[1]
>
> if certname if hostname.domain.name
>
> $matches = $trusted["certname"].match(/([^.]+)\./)
>
> Here $matches will have ["hostname.", "hostname"]
>
> and $matches[1] will fetch "hostname"
>
> https://docs.puppet.com/puppet/latest/reference/function.html#match
>
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