[chef] Re: Re: How to do conditional checks for gem installation?

[Sachin Sagar Rai < >]

@Bryan

Yup, I want to use the gem immediately as well.

So, did u mean to wrap as the following:

    gems = %w(aws-sdk gist)

    gems.each do |name|

      gem_package name do

        version node["dev_tools"]["#{name}_version"]

        not_if "true"

      end

      if !system('false')

        r.run_action(:install)

      end

    end

-------------------------------------------

@millisami
~ Sachin Sagar Rai
Ruby on Rails Developer
http://tfm.com.np
http://nepalonrails.tumblr.com

Sent with Sparrow

On Thursday, March 8, 2012 at 8:30 PM, Bryan McLellan wrote:

On Thu, Mar 8, 2012 at 4:46 AM, Sachin Sagar Rai < "> > wrote:

Following installs the ruby gems on each chef-client run.

gems = %w(aws-sdk gist)

gems.each do |name|

  r = gem_package name do

    version node["dev_tools"]["#{name}_version"]

    action :nothing

  end

  r.run_action(:install)

end

How to apply the `not_if` conditional checking for the

`r.run_action(:install)` action?

As I mentioned in the other email thread, this pattern is a bit of a

kludge to install the gem immediately so they can be used in a Chef

recipe, and the pattern is replaced with chef_gem in the next version

of Chef. If you don't need to use the gem in the Chef recipe, use the

standard pattern:

gems = %w(aws-sdk gist)

gems.each do |name|

  gem_package name do

    version node["dev_tools"]["#{name}_version"]

    not_if "true"

  end

end

If you do need them immediately you could use the existing kludge

pattern but wrap the call to run_action in a conditional:

if !system('false')

r.run_action(:install)

end

Bryan