Issue #12418 has been updated by John Bollinger.

Daniel Pittman wrote:
> However, I would love to just drop the ability to ship a symlink as a symlink 
> from a module on the server.  That is just ... odd.  Symlinking things in for 
> the convenience of the master?  Sure.  Sending a symlink to the client 
> because it was a symlink on the master?  That is just an invitation to pain.


You send a symlink to the client because you want a symlink on the client.  You 
*represent that desire to the master* by putting a symlink on the master and 
setting links => 'manage'.  That makes a lot of sense to me, and it's 
comparable to the switchable symlink treatment of common utilities, such as 
tar.  GNU tar, in fact, defaults to NOT dereferencing symlinks.


Nigel Kersten wrote:
> To simply deliver the app as a recursive file copy, you need the symlinks to 
> be copied as is, as the target doesn’t actually exist on the master itself, 
> but only on the clients.


Nigel's use case highlights a perspective that Daniel may be missing: symlinks 
are independent entities, not merely filesystem aliases.  In particular, they 
don't need to point to actual files.
----------------------------------------
Bug #12418: links => follow can't replace existing symlinks in the destination 
directory
https://projects.puppetlabs.com/issues/12418#change-55086

Author: Nick Fagerlund
Status: Needs Decision
Priority: Normal
Assignee: Daniel Pittman
Category: file
Target version: 
Affected Puppet version: 
Keywords: 
Branch: 


When serving a directory recursively, setting the `links` attribute to `follow` 
is supposed to dereference symlinks in the source and serve their targets to 
the destination as normal files. However, it can't replace existing symlinks in 
the destination directory, so it's not idempotent.

Assume that `$modulepath/fistfuloflinks/files/links` is a directory containing 
directories that contain symlinks. 

### Step 1

Apply the following resource:

    file {'/tmp/fistfuloflinks':
      ensure  => directory,
      source  => "puppet:///modules/fistfuloflinks/links",
      recurse => true,
      links   => follow,
      force   => true,
    }

As expected, the directories it creates contain normal files.

### Step 2:

Change the value of "links" to "manage," then apply the modified resource. As 
expected, the directories now mimic the source directories -- instead of normal 
files, they have symlinks. 

### Step 3:

Change "links" back to "follow" and apply again. Whoops: they stay symlinks 
instead of turning back to normal files. You can only get back to the results 
of step 1 if you delete the files out of band before applying the resource. 

Tested in puppet 2.7.6. Of course, it only now occurs to me that probably no 
one is actually using this feature, since putting symlinks inside a module is 
kind of brittle and deranged. 


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