Deals with ACLs

[FredericBGA]

-d and -w test operators do not seem to respect the acls. use filetest pragma

[rbuels]

@FredericBGA will this affect the minimum version of Perl that the tools require?

[cmdcolin]

this also is only applied to IndexNames e.g. generate-names...is it something that needs distributing more widely?

more reading on filetest here https://perldoc.perl.org/filetest

[cmdcolin]

I also wonder: what was the error before this change was added? Was it unable to write things it should have been able to write to?

[FredericBGA]

The error was:

Output directory '.' is not writable.
at /softs/bioinfo/jbrowse-1.16.10-release/bin/../src/perl5/Bio/JBrowse/ConfigurationManager.pm line 7.
Bio::JBrowse::ConfigurationManager::ANON("Output directory '.' is not writable.\x{a}") called at /softs/bioinfo/jbrowse-1.16
.10-release/bin/../src/perl5/Bio/JBrowse/Cmd/IndexNames.pm line 73
Bio::JBrowse::Cmd::IndexNames::run(Bio::JBrowse::Cmd::IndexNames=HASH(0x2624f30)) called at /softs/bioinfo/jbrowse/bin/generate-
names.pl line 8

but the directory was indeed writable due to ALCs.
I don't know if this should be applied more widely. We use JBrowse a lot and we didn't notice anything else that looks related.
Regarding the Perl minimun version, I don't know... We have v5.10.1.
filetest seems to exist since Perl 5.6.0: https://metacpan.org/pod/release/GSAR/perl-5.6.0/lib/filetest.pm

[cmdcolin]

seems like this should be ok. it does say in the docs here https://perldoc.perl.org/filetest to consider this carefully, but if it helps and doesn't have side effects then it seems good