Eric Sunshine <sunshine@xxxxxxxxxxxxxx> writes:
> On Sun, Jun 9, 2013 at 2:25 AM, Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx> wrote:
>> The function is made to use with free_pathspec() because a simple
>> struct assignment is not enough (free_pathspec wants to free "items"
>> pointer).
>
> I had to read this about five or six times before I could parse and
> understand it. Perhaps rewrite something like this:
>
> free_pathspec() frees pathspec->items, hence simple struct
> assignment does not properly duplicate a pathspec. Introduce
> copy_pathspec() to clone a pathspec correctly by deeply copying
> the items member.
Thanks. It might be worth that this is not a full "deep" copy,
perhaps like this:
pathspec: add copy_pathspec
Because free_pathspec wants to free "items" pointer in the pathspec
structure, a simple structure assignment is not enough if you want
to copy an existing pathspec into another. Freeing the original will
damage the copy unless a deep copy is made.
Note that the strings in pathspec->items->match and the array
pathspec->raw[] are still shared between the original and the
copy.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
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