From: "Ludovic Courtès" <ludo@gnu.org>
To: Attila Lendvai <attila@lendvai.name>
Cc: 55464@debbugs.gnu.org
Subject: bug#55464: (current-filename) is #f when guix pull'ing
Date: Wed, 18 May 2022 11:14:13 +0200 [thread overview]
Message-ID: <87ee0r42ze.fsf@gnu.org> (raw)
In-Reply-To: <625DOHHScuzJjNNfdQOqaLqGWVTmXC-S9PcF2xU3nzsFYG4XYTSEt0NGXDSXnBqVHqYqr6AsEbTysg7y_fxoqeBkbEtCqMZrx9muo3DlvS0=@lendvai.name> (Attila Lendvai's message of "Mon, 16 May 2022 21:04:10 +0000")
Hi,
Attila Lendvai <attila@lendvai.name> skribis:
> the actual context where i'm encountering this is a package definition where i want to load some hashes from a file relative the to the .scm file:
>
> (define-public foo
> (let ((hashes
> (with-input-from-file
> (string-append (dirname (current-filename))
> "/foo.hashes")
> read)))
> (package ...)))
Not fully answering your question, but if “foo.hashes” contains hashes
for origins and similar, you could make “foo.hashes” contain something
like:
(list (base32 …) …)
and, in the .scm, write:
(include "foo.hashes")
The ‘include’ directive includes the file at macro-expansion time,
similar to #include in C.
Back to the original issue, I suppose ‘current-filename’ return #f when
this .scm is first loaded, before it’s compiled. Anyway, it’s probably
best to load it at macro-expansion time as you suggested.
HTH,
Ludo’.
next prev parent reply other threads:[~2022-05-18 9:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-16 21:04 bug#55464: (current-filename) is #f when guix pull'ing Attila Lendvai
2022-05-17 0:09 ` bug#55464: alternative way Attila Lendvai
2022-05-18 9:14 ` Ludovic Courtès [this message]
2022-05-19 13:32 ` bug#55464: (current-filename) is #f when guix pull'ing Attila Lendvai
2022-05-21 16:39 ` Ludovic Courtès
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