Michael Paquier <michael.paqu...@gmail.com> writes:
> On Mon, Jul 3, 2017 at 9:25 PM, Greg Stark <st...@mit.edu> wrote:
>> On 2 July 2017 at 18:33, Tom Lane <t...@sss.pgh.pa.us> wrote:
>>> system("cp -a ...") call in favor of something more portable.

>> If we're ok with using Perl there's File::Copy::Recursive::dircopy()
>> which does exactly that.

> This stuff needs to support perl down to 5.8.0, and that's a reason
> behind having src/test/perl/RecursiveCopy.pm. So I would suggest just
> to use that. cp is not portable on Windows as well, that's a recipe
> for non-portable code there.

I can't see going this path in pg_regress, because then you would have
exactly zero test functionality in a non-Perl build.  What I had in
mind was a frontend-friendly version of backend/storage/file/copydir.c,
either just dropped into pg_regress.c or put in src/common/.

                        regards, tom lane

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