[chef] Re: mixliv command run_command executed at compile time ?

[Noah Kantrowitz < >]

On Feb 7, 2014, at 10:07 AM, Cyril Scetbon 
<
 >
 wrote:

> Hi,
> 
> When the command used in the Mixlib::ShellOut.new does not exist, chef 
> exits with a compilation error
> 
> ================================================================================
> Recipe Compile Error in /tmp/cookbooks/hadoop/recipes/default.rb
> ================================================================================
> 
> 
> Errno::ENOENT
> -------------
> No such file or directory - echo2 ok
> 
> 
> In the following example it should start and exists as it should not find 
> package whois2
> 
> include_recipe "apt"
> 
> package "whois2" do
>  action :install
> end
> 
> cmd = Mixlib::ShellOut.new("echo2 ok")
> cmd.run_command
> 
> However, it exists with :
> 
> [2014-02-07T18:00:28+00:00] DEBUG: Re-raising exception: Errno::ENOENT - No 
> such file or directory - echo2 ok
> /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/mixlib-shellout-1.2.0/lib/mixlib/shellout/unix.rb:268:in
>  `exec'
>  
> /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/mixlib-shellout-1.2.0/lib/mixlib/shellout/unix.rb:268:in
>  `block in fork_subprocess'
>  
> /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/mixlib-shellout-1.2.0/lib/mixlib/shellout/unix.rb:256:in
>  `fork'
>  
> /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/mixlib-shellout-1.2.0/lib/mixlib/shellout/unix.rb:256:in
>  `fork_subprocess'
>  
> /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/mixlib-shellout-1.2.0/lib/mixlib/shellout/unix.rb:40:in
>  `run_command'
>  
> /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/mixlib-shellout-1.2.0/lib/mixlib/shellout.rb:225:in
>  `run_command'
>  /tmp/vagrant-chef-1/chef-solo-1/cookbooks/hadoop/recipes/default.rb:19:in 
> `from_file'
>  
> /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.8.2/lib/chef/mixin/from_file.rb:30:in
>  `instance_eval'
> 
> If I replace "echo2" by "echo" it exits with the expected error.
> 
> I suppose it's not an expected behaviour ? FYI, I used chef-solo 11.8.2

Chef uses a two-pass system, first it evaluates all recipes to build the 
resource collection, then it converges each resource. Any top-level ruby code 
happens in the first phase, so that error happens first.

--Noah

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