GNU bug report logs - #34209
guix --version: ERROR: In procedure display: In procedure fport_write: Broken pipe

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

From: Pierre Neidhardt <mail <at> ambrevar.xyz>
To: bug-guix <at> gnu.org
Subject: guix --version: ERROR: In procedure display: In procedure
 fport_write: Broken pipe
Date: Sat, 26 Jan 2019 17:31:31 +0100

[Message part 1 (text/plain, inline)]

In Bash:
--8<---------------cut here---------------start------------->8---
$ guix --version | awk '{print $4; exit}'
Backtrace:
           5 (primitive-load "/home/ambrevar/.config/guix/current/bin/guix")
In guix/ui.scm:
    464:2  4 (show-version-and-exit _)
In ice-9/format.scm:
  1590:19  3 (format #t "Copyright ~a 2019 ~a" "(C)" "the Guix authors\n")
   261:19  2 (format:format-work "Copyright ~a 2019 ~a" ("(C)" "the Guix authors\n"))
    70:10  1 (format:out-obj-padded _ _ _ _)
In unknown file:
           0 (display "the Guix authors\n" #<output: file 1>)

ERROR: In procedure display:
In procedure fport_write: Broken pipe
--8<---------------cut here---------------end--------------->8---

-- 
Pierre Neidhardt
https://ambrevar.xyz/

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Message #8 received at 34209 <at> debbugs.gnu.org (full text, mbox):

From: Ricardo Wurmus <rekado <at> elephly.net>
To: Pierre Neidhardt <mail <at> ambrevar.xyz>
Cc: 34209 <at> debbugs.gnu.org
Subject: Re: bug#34209: guix --version: ERROR: In procedure display: In
 procedure fport_write: Broken pipe
Date: Sun, 27 Jan 2019 18:57:08 +0100

Pierre Neidhardt <mail <at> ambrevar.xyz> writes:

> In Bash:
> --8<---------------cut here---------------start------------->8---
> $ guix --version | awk '{print $4; exit}'
> Backtrace:
>            5 (primitive-load "/home/ambrevar/.config/guix/current/bin/guix")
> In guix/ui.scm:
>     464:2  4 (show-version-and-exit _)
> In ice-9/format.scm:
>   1590:19  3 (format #t "Copyright ~a 2019 ~a" "(C)" "the Guix authors\n")
>    261:19  2 (format:format-work "Copyright ~a 2019 ~a" ("(C)" "the Guix authors\n"))
>     70:10  1 (format:out-obj-padded _ _ _ _)
> In unknown file:
>            0 (display "the Guix authors\n" #<output: file 1>)
>
> ERROR: In procedure display:
> In procedure fport_write: Broken pipe
> --8<---------------cut here---------------end--------------->8---

This happens because awk closes the stream while we’re writing to it.
We could wrap the things in “run-guix” in (leave-on-EPIPE …).

Or we tell Guix not to ignore SIGPIPE.

See also https://issues.guix.info/issue/29826.

--
Ricardo

Message #11 received at 34209 <at> debbugs.gnu.org (full text, mbox):

From: Ricardo Wurmus <rekado <at> elephly.net>
To: 34209 <at> debbugs.gnu.org
Subject: Re: bug#34209: guix --version: ERROR: In procedure display: In
 procedure fport_write: Broken pipe
Date: Sun, 27 Jan 2019 18:57:37 +0100

merge 34209 29826

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