Making sure file exist before attemping unlinking it. Otherwise cause er...

[sysbot]

When "force_unlink true" is use, if the file doesn't already exist, file creation will fail because the old code will attempt to unlink it without checking to see if it exist.

• file[/etc/resolvconf/resolv.conf.d/tail] action create [2014-04-27T18:53:31+00:00] INFO: Processing file[/etc/resolvconf/resolv.conf.d/tail] action create (resolvconf::install line 23)

  ================================================================================

  Error executing action create on resource 'file[/etc/resolvconf/resolv.conf.d/tail]'

  Errno::ENOENT

  No such file or directory - /etc/resolvconf/resolv.conf.d/tail

  Resource Declaration:

  In /tmp/kitchen/cache/cookbooks/resolvconf/recipes/install.rb

  23: file "/etc/resolvconf/resolv.conf.d/tail" do
  24:   mode    00644
  25:   content "abc"
  26:   action :create
  27:   # Remove file if it is not a regular file (e.g. a symlink)
  
  28:   # This is useful, as sometimes the backup stored in the file "original"
  29:   # is symlinked to "tail"
  30:   force_unlink true
  31: end
  

  Compiled Resource:

  Declared in /tmp/kitchen/cache/cookbooks/resolvconf/recipes/install.rb:23:in `from_file'

  file("/etc/resolvconf/resolv.conf.d/tail") do
  provider Chef::Provider::File

   action [:create]
   retries 0
   retry_delay 2
   guard_interpreter :default
   path "/etc/resolvconf/resolv.conf.d/tail"
   backup 5
   atomic_update true
   force_unlink true
   cookbook_name "resolvconf"
   recipe_name "install"
   mode 420
   content "abc"
  

  end

[lamont-granquist]

dup of #1383