Invalid nar signature

[David Thompson]

Hello everyone,

While working on a new guix command, called 'guix publish', I've run
into a snag.  The archives I've exported via export-paths in the (guix
store) module are rejected by 'guix substitute-binary' due to the nar
signature being invalid.  The signature is a string containing
"nix-archive-1" at the head of the file.  I can clearly see that text
there, but the read-string operation that happens in the restore-file
procedure in (guix serialization) says otherwise.

The output of the following code in the context of the
(guix serialization) module is "\r", it should be "nix-archive-1":

  (with-input-from-file "some-nar-file"
    (lambda ()
      (read-string (current-input-port))))

Does anyone know what I'm missing here?  Thanks in advance.

-- 
David Thompson
Web Developer - Free Software Foundation - http://fsf.org
GPG Key: 0FF1D807
Support the FSF: https://fsf.org/donate