Re: [PATCH 2/3] merge-recursive: remove return value from get_files_dirs

>>
>> On Mon, Aug 28, 2017 at 02:28:28PM -0600, Kevin Willford wrote:
>>
>> > The return value of the get_files_dirs call is never being used.
>> > Looking at the history of the file and it was originally only
>> > being used for debug output statements.  Also when
>> > read_tree_recursive return value is non zero it is changed to
>> > zero.  This leads me to believe that it doesn't matter if
>> > read_tree_recursive gets an error.
>>
>> Or that the function is buggy. :)
>
> That was one of my questions as well.  Should read_tree_recursive
> be propagating a -1 and merge_trees be checking for that and bail
> when the call to get_files_dirs return is < 0?  I made a commit with
> this change and ran the tests and they all still passed so either this
> return really doesn't matter or there are not sufficient tests covering
> it.
>
> I went with this change because it was not changing any of the
> current functionality and if we find a case where it matters that
> read_tree_recursive fails due to bad tree or something else we
> can address it then.
>
>>
>> I'm tempted to say that we should probably die() when
>> read_tree_recursive fails. This should only happen if we fail to parse
>> the tree, or if our callback (save_files_dirs here) returns failure, and
>> the latter looks like it never happens.
>>
>> > Since the debug output has been removed and the caller isn't
>> > checking the return value there is no reason to keep calulating
>> > and returning a value.
>>
>> Agreed, and I'm happy to see dead code go.
>>
>> Minor nit: s/calulating/calculating/ in your commit message.
>
> When will that spell checker for git messages be ready? ;)