GNU bug report logs - #35187
26.1; call-process should accept a buffer as stdin. or its doc should reference call-process-region

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Package: emacs;

Reported by: Ernesto Alfonso <erjoalgo <at> gmail.com>

Date: Sun, 7 Apr 2019 21:42:02 UTC

Severity: minor

Tags: fixed

Found in version 26.1

Fixed in version 27.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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Report forwarded to bug-gnu-emacs <at> gnu.org:
bug#35187; Package emacs. (Sun, 07 Apr 2019 21:42:02 GMT) Full text and rfc822 format available.

Acknowledgement sent to Ernesto Alfonso <erjoalgo <at> gmail.com>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs <at> gnu.org. (Sun, 07 Apr 2019 21:42:02 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Ernesto Alfonso <erjoalgo <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 26.1; call-process should accept a buffer as stdin. or its doc should
 reference call-process-region
Date: Sun, 07 Apr 2019 14:39:30 -0700
When looking at the call-process doc, I didn't see a way to pass a
buffer to stdin without creating a temporary file. It looks like
the DESTINATION argument already supports either a file-name or a
buffer, but passing a buffer to INFILE does not seem supported:

    (call-process "cat" (get-buffer "*Messages*") nil)
    *** Eval error ***  Wrong type argument: stringp, #<buffer *Messages*>

Can this be supported? Could call-process-region be merged into
the INFILE argument to call-process?

As a short-term fix, it would be useful if the call-process referred to
call-process-region.

In GNU Emacs 26.1 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.22.11)
 of 2019-04-01 built on debian-x1g4
Windowing system distributor 'The X.Org Foundation', version 11.0.11902000
System Description:	Debian GNU/Linux 9.8 (stretch)

Recent messages:
Sending email 
Sending email done
Sending...done
Mark set
x C-g is undefined
killed: call-process
Mark set
Mark saved where search started
Mark set
Mark saved where search started

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Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#35187; Package emacs. (Tue, 09 Jul 2019 16:01:02 GMT) Full text and rfc822 format available.

Message #8 received at 35187 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Ernesto Alfonso <erjoalgo <at> gmail.com>
Cc: 35187 <at> debbugs.gnu.org
Subject: Re: bug#35187: 26.1;
 call-process should accept a buffer as stdin. or its doc should
 reference call-process-region
Date: Tue, 09 Jul 2019 18:00:37 +0200
Ernesto Alfonso <erjoalgo <at> gmail.com> writes:

> When looking at the call-process doc, I didn't see a way to pass a
> buffer to stdin without creating a temporary file. It looks like
> the DESTINATION argument already supports either a file-name or a
> buffer, but passing a buffer to INFILE does not seem supported:
>
>     (call-process "cat" (get-buffer "*Messages*") nil)
>     *** Eval error ***  Wrong type argument: stringp, #<buffer *Messages*>
>
> Can this be supported? Could call-process-region be merged into
> the INFILE argument to call-process?

I think it's probably too late to merge these two functions...

> As a short-term fix, it would be useful if the call-process referred to
> call-process-region.

... but I've now mentioned the latter in the former's doc string on the
Emacs trunk.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no




Added tag(s) fixed. Request was from Lars Ingebrigtsen <larsi <at> gnus.org> to control <at> debbugs.gnu.org. (Tue, 09 Jul 2019 16:01:02 GMT) Full text and rfc822 format available.

bug marked as fixed in version 27.1, send any further explanations to 35187 <at> debbugs.gnu.org and Ernesto Alfonso <erjoalgo <at> gmail.com> Request was from Lars Ingebrigtsen <larsi <at> gnus.org> to control <at> debbugs.gnu.org. (Tue, 09 Jul 2019 16:01:02 GMT) Full text and rfc822 format available.

bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Wed, 07 Aug 2019 11:24:10 GMT) Full text and rfc822 format available.

This bug report was last modified 4 years and 235 days ago.

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