[asdf-devel] ASDF 2.016.2

Faré fahree at gmail.com
Sun Jun 12 15:42:38 UTC 2011

>> In other words, if I compute (directory #p"FOO:CL;BAR;"),
>> and find a file #p"/home/baz/cl/bar/quux.asd", the file will be kept
>> only if (make-pathname :name "quux" :type "asd" :defaults #p"FOO:CL;BAR;")
>> has the previous as its truename. And similarly when walking directories.
>> I believe this restriction is not a problem in practice, and
>> will keep things somewhat sane.
> I'm not sure if I understand all the implications of this change, so I'm hesitating to applaud this. I don't think it should be ASDF's job to fix this particular problem.
There are legitimate reasons in general for the truename
to not commute with the setting of name and type:
symlinks and clever pathname mappings to wholly different files;
mapping of type fasl to implementation-specific type, etc.
But for the specific sake of searching for .asd files,
these reasons do not apply, and it's safer to avoid such cases:
indeed, since the name of a .asd file has to match the name of the
defsystem inside it, it's probably best to avoid looking
for system "foo" in a file named "bar.c".

Therefore, I think it's not wholly inappropriate
for ASDF to do this filtering.

As for filtering directory names — a bit ugly,
but required by the behavior of DIRECTORY.

If you think you must fix the spec and all implementations — good luck.

—♯ƒ • François-René ÐVB Rideau •Reflection&Cybernethics• http://fare.tunes.org
You have the capacity to learn from mistakes.  You'll learn a lot today.

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