[chef] Re: Include recipe if file exists.

[Lamont Granquist < >]

Similarly, you probably want to package your recipe as an LWRP and then 
you can:

unless File::exist?("/etc/foo/bar")
  foo "bar" do
    action :run
  end
end

Or use a not_if, or just bake the File.exist? check into the LWRP.

Since you mention you've had compile/converge issues its probably better 
to bake the File.exist? check into the idempotency check of an LWRP and 
then you *always* call the LWRP and the provider code simply does 
"return if File.exist?("/etc/foo/bar")" and then the calling code is not 
responsible for that check and just calls the LWRP.

On 10/08/2015 09:17 AM, Doug Garstang wrote:
> All,
>
> Trying to do a conditional include_recipe based on a file existing. 
> Doesn't work due to compile/converge stage stuff.
>
> A workaround was suggested here by the folks that should know:
> https://tickets.opscode.com/browse/CHEF-5342
>
> However, it doesn't work, just as someone else responded to the ticket 
> with. They did not get a reply.
>
> So, just to be clear, as suggested, this does not work:
>
> unless ::File.exists?("/etc/foo/bar")
>   include_recipe "foo::bar"
> end
>
> Doug