Native symlinks and setup.exe

Gene Pavlovsky gene.pavlovsky@gmail.com
Tue Oct 4 23:15:00 GMT 2016


Eric,

Before writing a patch it's wise to check if it would be accepted, now
that your position is clear, somebody might do it.
I don't think I'm up for the task, but I'd like to at least take a
look at the sources.
I've downloaded the git sources and found the link creation function
is in winsup/cygwin/path.cc, can you tell me where are the sources for
the setup util?

Thanks.

On 5 October 2016 at 00:04, Eric Blake <eblake@redhat.com> wrote:
> On 10/04/2016 03:53 PM, Vince Rice wrote:
>>>> Obviously, a political discussion is required, to decide whether it is
>>>> ok, as is, or if a change in package logic would have benefits.
>
> The easiest way to have the discussion would be to write a patch,
> instead of debating about different behaviors but then expecting others
> to do the work.
>
>> I don’t see that changing. And, as already noted, setup isn’t a Cygwin program,
>> so it knows (and cares) nothing about cygwin environment variables.
>
> setup.exe has its own untar'ing code (it is NOT forking tar, since one
> of the packages setup.exe has to install is tar, and it would be a
> chicken-and-egg problem if setup always forked out to a tar program if
> it can't first untar the tarball containing tar).  But while setup.exe
> apparently does NOT currently honor the CYGWIN environment variable with
> regards to how its untar'ring code should behave on symlinks, there's
> nothing that prevents you from writing a patch to teach it to do so, and
> perhaps that patch can even share some of the existing code for
> cygwin1.dll so that you aren't writing it from scratch.  It should
> already be clear that code exists in setup.exe that handles symlinks in
> tarballs - all that this thread is complaining about is that the code
> doesn't do it the way that cygwin1.dll does it.  But someone has to
> write such a patch, and preferably someone that cares enough to be
> bothered by the current behavior (I don't, so it won't be me writing it).
>
> --
> Eric Blake   eblake redhat com    +1-919-301-3266
> Libvirt virtualization library http://libvirt.org
>

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