stricter portable_filenames check

[wollmers]

Some filesystems do not support case-sensitive names (e.g. OSX, Win). This means, they treat Foo.pm the same as foo.pm.

[charsbar]

Basically true. Do you think if we need to check stricter, in other words, if we actually need to check 02packages/06permissions to see if there're distributions with conflicting name(s), and which is released earlier? (theoretically, it should be "yes", but practically, it may be a bit too much burden considering the cost/performance). It would be awesome If you know some concrete examples to convince me to implement this :)

[karenetheridge]

if we actually need to check 02packages/06permissions to see if there're distributions with conflicting name(s), and which is released earlier?

Given that PAUSE no longer indexes same-but-for-case module names, I think the answer is yes.

[wollmers]

I mean it generally for all files in the distribution, e.g.

t/Foo.t
t/foo.t

or

share/img/foo.jpg
share/img/foo.JPG
share/IMG/foo.jpg

Play around with https://github.com/wollmers/John-Doe (just created and released by Dist::Milla to CPAN).

Here is what I get after unpacking the tar.gz

Linux:
helmutw@dev:~/github/test_john_doe/John-Doe-0.00/t$ ls -1
basic.t
john_doe.t
John_Doe.t
JOHN_DOE.t
release-pod-syntax.t

OSX:

helmut@Helmuts-iMac:~/github/John-Doe-0.00/t$ ls -1
basic.t
john_doe.t
release-pod-syntax.t

The other package/PAUSE/permission problem is a subset and will be catched too.

@karenetheridge knows more about this, but here a some links to the "ElasticSearch renaming" problem:

http://www.dagolden.com/index.php/2341/perl-qa-hackathon-2014-report/

http://www.elasticsearch.org/blog/renaming-perl-client/

http://rjbs.manxome.org/rubric/entry/2040

andk/pause#85

[wollmers]

It's on CPAN now

https://metacpan.org/release/John-Doe

and I can install it on Mac with cpanm, but shows the same content for different modules.