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Re^5: Unify windows filenames

by afoken (Abbot)
on Sep 23, 2009 at 04:18 UTC ( #796887=note: print w/replies, xml ) Need Help??


in reply to Re^4: Unify windows filenames
in thread Unify windows filenames

There is a conceptual error in File::Spec: It assumes that the ENTIRE operating system is either case sensitive or not. This was acceptable for "old" operating systems that could mount only their native file systems, but modern systems can mount foreign file systems, each with different behaviour. Linux' ext2/3/4 are clearly case sensitive, FAT is case insensitive even under linux. VFAT and NTFS usually are case insensitive but case preserving, but there is a mount option ("posix") that "allows two files that only differ in case" - so VFAT and NTFS can be case sensitive.

The correct return value for File::Spec::case_tolerant() should be "it depends" for most operating systems. You need to test each directory along the path, and the answer may be different for each directory.

Alexander

--
Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

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[choroba]: The problem was bigger, as the test tried to call a method that didn't exist anymore
[marinersk]: :: ducking ::
[choroba]: because, someone renamed the method, but didn't notice it was used in the test, as the test was skipped
[marinersk]: Well, if the method doesn't exist, it would be hard to pass the test.
[choroba]: later, someone removed the new method, as all its usage places were safe, but didn't notice the test still used the old name
[choroba]: fortunately, it wasn't that hard to replace the method and fix a few remaining failures due to the changes we did to the codebase over the years
[marinersk]: choroba Sounds like a process improvement opportunity; tests may not all need to be run, but they should all be compiled with perl -c before check-in/promotion happens.
[choroba]: so, now I have the test, so I can start making changes in the code. Back to the original ticket, yay!
[marinersk]: I definitely love it when my $current_taask=& taskPop(); if ($current_task eq $original_task) { } is true.
[marinersk]: s/taask/task/g;

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