[chef] Re: Re: Re: Using not_if in bash block still causes file to be downloaded

[Daniel DeLeo < >]

On Friday, February 3, 2012 at 1:01 PM, Arthur Kalmenson wrote:

> Thanks Matt, that worked perfectly.
> 
> --
> Arthur Kalmenson
> 
> 
> On Fri, Feb 3, 2012 at 11:11 AM, Matt Ray 
> <
 
>  
> (mailto:
 )>
>  wrote:
> > Perhaps using remote_file might be cleaner?
> > 
> > 
> > On Fri, Feb 3, 2012 at 9:43 AM, Arthur Kalmenson 
> > <
 
> >  
> > (mailto:
 )>
> >  wrote:
> > > Hello everyone,
> > > 
> > > I'm writing a recipe to install hubot using the bash resource and using 
> > > the
> > > not_if constraint to avoid reinstalling each time chef-client runs. 
> > > While
> > > the reinstall does not happen, I'm finding that the hubot file 
> > > continues to
> > > be downloaded with wget. Therefore, the /tmp dir is filling up with 
> > > hubot
> > > tar files. Is there a reason why parts of the bash block execute and 
> > > others
> > > don't?
> > > 
> > > The recipe looks as follows:
> > > 
> > > bash "install hubot" do
> > > user hubot_user
> > > group hubot_group
> > > environment ({'HOME' => "#{install_dir}" })
> > > cwd install_dir_parent
> > > code <<-EOH
> > > wget -P /tmp
> > > https://github.com/downloads/github/hubot/hubot-#{version}.tar.gz && \
> > > tar xzf /tmp/hubot-#{version}.tar.gz && \
> > > cd hubot && \
> > > npm install
> > > EOH
> > > not_if "#{install_dir}/bin/hubot -v 2>&1 | grep '#{version}'"
> > > end
> > > 
> > > The full recipe file is here: https://gist.github.com/1730793. Thank ;
> > > you in
> > > advance for any help.
> > > 
> > > All the best,
> > > --
> > > Arthur Kalmenson
> > 
> 

Remote file is definitely the way to go for operations like this. But I'm 
confused as to why the not_if didn't work. Is it possible that you had the 
version in the install_dir? Also, the latest version of Chef allows multiple 
not_if statements, so you could test that the hubot command exists and then 
test that it's the correct version. 

HTH,
Dan DeLeo