On Saturday, November 5, 2016 at 3:05:04 PM UTC-7, David K. Storrs wrote:
> I've got this little snip of code:
>
>
>
>
> (define p "/tmp/foo/bar-28")
>
> (file-exists? p) ; #t
> (delete-file p)
> (file-exists? p) ; still #t ??
>
>
> I've verified that:
>
> *) It's not throwing an exception
> *) The code is running as me
> *) The /tmp directory is 777 [I'm on OSX 10.11]
> *) The file itself is 666, although that shouldn't matter
> *) The file is owned by me
>
> *) p is a string
>
> *) p points to the correct file
>
> *) There are no leading or trailing whitespace characters
>
> *) If I run this code from inside a command-line Racket REPL, it works fine
> and the file is deleted
>
> *) If I replace (delete-file) with (system @~a{rm -f @p}) it works fine
>
> I thought maybe there was something weird about the /tmp directory, so I
> tried putting the target in a different directory
> (/Users/dstorrs/tmp/foo/bar-28) but that made no difference.
>
> I've tried googling on the general net and in the mailing list archives and
> found nothing. I am utterly flummoxed here; can anyone suggest anything?
After a LOT of work, I finally tracked this down: delete-file was being
overriden by a message from our network protocol, which was being included into
my test code as a re-export from a different library. I didn't find it at
first because in the protocol file the message is 'delete_file' (with an
underscore), but when murphy/protobuf compiles the .proto file into a .rkt file
it changes all underscores to dashes. I renamed the message to 'delete_a_file'
and that fixed it.
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