[rt.cpan.org #132067] fix for Archive::Zip related test failures due to symlinks

[Shawn Laffan via RT]

Thu Mar 05 17:43:33 2020: Request 132067 was acted upon.
Transaction: Ticket created by SLAFFAN
Queue: PAR-Dist
Subject: fix for Archive::Zip related test failures due to symlinks
Broken in: (no value)
Severity: (no value)
Owner: Nobody
Requestors: SLA...@cpan.org
Status: new
Ticket <URL: https://rt.cpan.org/Ticket/Display.html?id=132067 >


Many of the current CPAN test failures have this error text (links below):

error: Could not extract /tmp/par4D_mq/blib/META.yml safely: /tmp is an existing symbolic link



One simple fix is to ensure _unzip_to_tmpdir (or perhaps _unzip) uses a path with symlinks resolved.

For example in _unzip_to_tmpdir:

...
my $path = $tmpdir;
$path = File::Spec->catdir($tmpdir, $args{subdir}) if defined $args{subdir};
### add these two lines
require Cwd;
$path = Cwd::realpath($path);

_unzip(dist => $dist, path => $path);
...


Tested on macos 10.15.

Let me know if you'd prefer a patch file, and whether it should be in _unzip_to_tmpdir or more localised within _unzip.

Shawn.




CPAN testers links:

https://www.cpantesters.org/cpan/report/07bf1b62-1c64-11e9-98a9-a7ab3e5edb37
https://www.cpantesters.org/cpan/report/b9d7c082-7a9d-11e9-81af-f28ed51e9e84
https://www.cpantesters.org/cpan/report/9f5989e4-817c-11e9-b3ce-75fdc00df68b