Shawn Walker wrote:

> On 07/26/11 16:08, Danek Duvall wrote:
> >Shawn Walker wrote:
> >
> >>https://cr.opensolaris.org/action/browse/pkg/swalker/pkg-validate-1-2/webrev/
> >
> >generic.py:
> >
> >   - line 1137: why not a try/except here?  Just not in the fast path?
> 
> Basically because it's not a hot path that I cared enough about.  I
> don't mind changing it for consistency if so desired.

No need; just curious.

> >imageplan.py:
> >
> >   - line 2983: Why wedge this into ActionExecutionError?  Wouldn't a new
> >     SymlinkLoopError be better?  That way we can use it in other parts of
> >     the code that might run into the same problem.
> 
> Because the client already handles ActionExecutionErrors gracefully
> and I didn't want clients to have to be updated to handle that.  Yes,
> I could make it a subclass of ActionExecutionErrors, but I also felt
> like it wasn't a case that clients actually needed to specifically
> detect and handle.  It was good enough to simply say what went wrong.

Okay; I don't think this will be a common occurrence.

> >   - line 2985: The link needn't target itself; only be part of a loop,
> >     which might be much longer than a single path.  (I don't think you need
> >     to add tests for this, but the error text could be broader.)
> 
> I've attempted to clarify the error text:
> 
> "A link targeting itself or part of a link loop was found at '%s'; a
> file or directory was expected.  Please remove the link and try
> again."

Sounds fine.

> >   - line 2988: will simply removing the link work, or would you have to run
> >     pkg fix first (assuming the path in question isn't supposed to be
> >     changing in this plan)?
> 
> That depends on the scenario.  If it's supposed to be a file, simply
> removing the link should be sufficient since we failed while
> attempting to deliver something to the same location.  However, if it
> was a directory, then yes, pkg fix could potentially be the only
> correct way to fix it (after removing it currently).
> 
> >t_pkg_install.py:
> >
> >   - Does pkg fix properly remove a link targeting itself and replace it
> >     with whatever should be there?
> 
> No, because we currently rely on the install path to perform our
> fixes.  So fix would exit with the same error, but it would restore
> the item properly if you removed the bad link first.
> 
> Getting fix to be automatically repair it would be neat, but is
> definitely non-trivial.  I'm uncertain if I should expend that much
> effort on this particular case.  I can either file a bug for us to
> eventually do that, or pass on this for now.

Don't bother fixing it now, but filing a bug (perhaps with a patch adding a
test case demonstrating the problem) would be nice.

Thanks,
Danek
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