* bug#41788: 28.0.50; emacsclient -t doesn't work with vipe from moreutils
@ 2020-06-10 13:19 Platon Pronko
2022-06-06 14:00 ` Lars Ingebrigtsen
0 siblings, 1 reply; 11+ messages in thread
From: Platon Pronko @ 2020-06-10 13:19 UTC (permalink / raw)
To: 41788
When trying to use "emacsclient -t" with vipe I get an error:
$ echo a | EDITOR='emacsclient -t' vipe
*ERROR*: Could not open file: /dev/tty
emacsclient -t exited nonzero, aborting
(vipe is a tool from moreutils, used to insert an editor in the middle of
the pipeline)
Looking inside vipe source I see that it reopens stdin before calling
the EDITOR:
close STDIN;
open(STDIN, "</dev/tty") || die "reopen stdin: $!";
If I use for example nano instead of emacsclient -t then everything works correctly.
In GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.20, cairo version 1.17.3)
of 2020-06-04 built on the-big-maker
Repository revision: cdadb7a97cbed523af9f52705d8b03e91d17313f
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12008000
System Description: Arch Linux
Configured using:
'configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/lib
--localstatedir=/var --mandir=/usr/share/man --with-gameuser=:games
--with-sound=alsa --with-modules --without-gconf --without-gsettings
--with-x-toolkit=gtk3 --without-xaw3d --without-compress-install
'CFLAGS=-march=x86-64 -mtune=generic -O2 -pipe -fno-plt -flto'
CPPFLAGS=-D_FORTIFY_SOURCE=2
LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now'
Configured features:
XPM JPEG TIFF GIF PNG RSVG CAIRO SOUND GPM DBUS GLIB NOTIFY INOTIFY ACL
GNUTLS LIBXML2 FREETYPE HARFBUZZ M17N_FLT LIBOTF ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM MODULES THREADS LIBSYSTEMD JSON
PDUMPER LCMS2 GMP
Important settings:
value of $LC_TIME: en_SE.UTF-8
value of $LANG: en_US.UTF-8
locale-coding-system: utf-8-unix
Major mode: SQL[ANSI]
Minor modes in effect:
recentf-mode: t
global-magit-file-mode: t
magit-file-mode: t
magit-auto-revert-mode: t
rainbow-delimiters-mode: t
counsel-mode: t
ivy-mode: t
global-git-gutter-mode: t
git-gutter-mode: t
global-git-commit-mode: t
async-bytecomp-package-mode: t
shell-dirtrack-mode: t
global-auto-revert-mode: t
global-whitespace-mode: t
global-dvorak-mode: t
dvorak-minor-mode: t
tooltip-mode: t
global-eldoc-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
column-number-mode: t
line-number-mode: t
transient-mark-mode: t
Load-path shadows:
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/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-classpath hides /usr/share/emacs/site-lisp/cider-classpath
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/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-repl hides /usr/share/emacs/site-lisp/cider-repl
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-inspector hides /usr/share/emacs/site-lisp/cider-inspector
/home/platon/.emacs.d/elpa/parseclj-20190531.711/parseclj hides /usr/share/emacs/site-lisp/parseclj
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-util hides /usr/share/emacs/site-lisp/cider-util
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/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-browse-ns hides /usr/share/emacs/site-lisp/cider-browse-ns
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/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-resolve hides /usr/share/emacs/site-lisp/cider-resolve
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-compat hides /usr/share/emacs/site-lisp/cider-compat
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-format hides /usr/share/emacs/site-lisp/cider-format
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/home/platon/.emacs.d/elpa/a-20180907.953/a hides /usr/share/emacs/site-lisp/a
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/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-selector hides /usr/share/emacs/site-lisp/cider-selector
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-client hides /usr/share/emacs/site-lisp/cider-client
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-scratch hides /usr/share/emacs/site-lisp/cider-scratch
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-repl-history hides /usr/share/emacs/site-lisp/cider-repl-history
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-find hides /usr/share/emacs/site-lisp/cider-find
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-test hides /usr/share/emacs/site-lisp/cider-test
/home/platon/.emacs.d/elpa/cider-20200604.1627/nrepl-dict hides /usr/share/emacs/site-lisp/nrepl-dict
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-overlays hides /usr/share/emacs/site-lisp/cider-overlays
/home/platon/.emacs.d/elpa/protobuf-mode-20200520.15/protobuf-mode hides /usr/share/emacs/site-lisp/protobuf-mode
/home/platon/.emacs.d/elpa/parseclj-20190531.711/parseclj-lex hides /usr/share/emacs/site-lisp/parseclj-lex
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-mode hides /usr/share/emacs/site-lisp/cider-mode
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-xref hides /usr/share/emacs/site-lisp/cider-xref
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-apropos hides /usr/share/emacs/site-lisp/cider-apropos
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-browse-spec hides /usr/share/emacs/site-lisp/cider-browse-spec
/home/platon/.emacs.d/elpa/cider-20200604.1627/cider-tracing hides /usr/share/emacs/site-lisp/cider-tracing
/home/platon/.emacs.d/elpa/clojure-mode-20200419.559/clojure-mode hides /usr/share/emacs/site-lisp/clojure-mode
/home/platon/.emacs.d/elpa/epl-20180205.2049/epl hides /usr/share/emacs/site-lisp/epl/epl
/home/platon/.emacs.d/elpa/pkg-info-20150517.1143/pkg-info hides /usr/share/emacs/site-lisp/pkg-info/pkg-info
/home/platon/.emacs.d/elpa/queue-0.2/queue hides /usr/share/emacs/site-lisp/queue/queue
/home/platon/.emacs.d/elpa/sesman-20190909.1754/sesman-browser hides /usr/share/emacs/site-lisp/sesman/sesman-browser
/home/platon/.emacs.d/elpa/sesman-20190909.1754/sesman hides /usr/share/emacs/site-lisp/sesman/sesman
/home/platon/.emacs.d/elpa/spinner-1.7.3/spinner hides /usr/share/emacs/site-lisp/spinner/spinner
/home/platon/.emacs.d/elpa/less-css-mode-20161001.453/less-css-mode hides /usr/share/emacs/28.0.50/lisp/textmodes/less-css-mode
Features:
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ivy-overlay colir smartparens-config smartparens-javascript
smartparens-rust smartparens-ruby smartparens-org smartparens-text
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Memory information:
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^ permalink raw reply [flat|nested] 11+ messages in thread
* bug#41788: 28.0.50; emacsclient -t doesn't work with vipe from moreutils
2020-06-10 13:19 bug#41788: 28.0.50; emacsclient -t doesn't work with vipe from moreutils Platon Pronko
@ 2022-06-06 14:00 ` Lars Ingebrigtsen
2022-06-06 14:44 ` Andreas Schwab
0 siblings, 1 reply; 11+ messages in thread
From: Lars Ingebrigtsen @ 2022-06-06 14:00 UTC (permalink / raw)
To: Platon Pronko; +Cc: 41788
Platon Pronko <platon7pronko@gmail.com> writes:
> $ echo a | EDITOR='emacsclient -t' vipe
> *ERROR*: Could not open file: /dev/tty
> emacsclient -t exited nonzero, aborting
>
> (vipe is a tool from moreutils, used to insert an editor in the middle of
> the pipeline)
>
> Looking inside vipe source I see that it reopens stdin before calling
> the EDITOR:
>
> close STDIN;
> open(STDIN, "</dev/tty") || die "reopen stdin: $!";
>
> If I use for example nano instead of emacsclient -t then everything works correctly.
(I'm going through old bug reports that unfortunately weren't resolved
at the time.)
This problem is still present in Emacs 29. Does anybody understand
where the misbehaviour between this STDIN redirect and what emacsclient
is complaining about can be fixed?
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 11+ messages in thread
* bug#41788: 28.0.50; emacsclient -t doesn't work with vipe from moreutils
2022-06-06 14:00 ` Lars Ingebrigtsen
@ 2022-06-06 14:44 ` Andreas Schwab
2022-06-06 14:49 ` Lars Ingebrigtsen
0 siblings, 1 reply; 11+ messages in thread
From: Andreas Schwab @ 2022-06-06 14:44 UTC (permalink / raw)
To: Lars Ingebrigtsen; +Cc: Platon Pronko, 41788
On Jun 06 2022, Lars Ingebrigtsen wrote:
> Platon Pronko <platon7pronko@gmail.com> writes:
>
>> $ echo a | EDITOR='emacsclient -t' vipe
>> *ERROR*: Could not open file: /dev/tty
>> emacsclient -t exited nonzero, aborting
>>
>> (vipe is a tool from moreutils, used to insert an editor in the middle of
>> the pipeline)
>>
>> Looking inside vipe source I see that it reopens stdin before calling
>> the EDITOR:
>>
>> close STDIN;
>> open(STDIN, "</dev/tty") || die "reopen stdin: $!";
>>
>> If I use for example nano instead of emacsclient -t then everything works correctly.
>
> (I'm going through old bug reports that unfortunately weren't resolved
> at the time.)
>
> This problem is still present in Emacs 29. Does anybody understand
> where the misbehaviour between this STDIN redirect and what emacsclient
> is complaining about can be fixed?
It's not emacsclient that is complaining, it just displays the error
raised by emacs. But it is hard to guess what's going on without
knowing the exact command line.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
^ permalink raw reply [flat|nested] 11+ messages in thread
* bug#41788: 28.0.50; emacsclient -t doesn't work with vipe from moreutils
2022-06-06 14:44 ` Andreas Schwab
@ 2022-06-06 14:49 ` Lars Ingebrigtsen
2022-06-06 16:25 ` Andreas Schwab
0 siblings, 1 reply; 11+ messages in thread
From: Lars Ingebrigtsen @ 2022-06-06 14:49 UTC (permalink / raw)
To: Andreas Schwab; +Cc: Platon Pronko, 41788
Andreas Schwab <schwab@linux-m68k.org> writes:
> It's not emacsclient that is complaining, it just displays the error
> raised by emacs. But it is hard to guess what's going on without
> knowing the exact command line.
/usr/bin/vipe is just a Perl script, so it's easy to hack. Let's see...
it just calls:
emacsclient -t /tmp/KtLHpMIm4T
I've included the entire vipe script below.
#!/usr/bin/perl
use warnings;
use strict;
use File::Temp q{tempfile};
use Getopt::Long;
$/=undef;
my $suffix = "";
if (! GetOptions("suffix=s" => \$suffix)) {
die "Usage: $0 [--suffix=extension]\n";
}
$suffix = ".$suffix" if $suffix =~ m/^[^.]/;
my ($fh, $tmp)=tempfile(UNLINK => 1, SUFFIX => $suffix);
die "cannot create tempfile" unless $fh;
if (! -t STDIN) {
print ($fh <STDIN>) || die "write temp: $!";
}
close $fh;
close STDIN;
open(STDIN, "</dev/tty") || die "reopen stdin: $!";
open(OUT, ">&STDOUT") || die "save stdout: $!";
close STDOUT;
open(STDOUT, ">/dev/tty") || die "reopen stdout: $!";
my @editor="vi";
if (-x "/usr/bin/editor") {
@editor="/usr/bin/editor";
}
if (exists $ENV{EDITOR}) {
@editor=split(' ', $ENV{EDITOR});
}
if (exists $ENV{VISUAL}) {
@editor=split(' ', $ENV{VISUAL});
}
my $ret=system(@editor, $tmp);
if ($ret != 0) {
die "@editor exited nonzero, aborting\n";
}
open (IN, $tmp) || die "$0: cannot read $tmp: $!\n";
print (OUT <IN>) || die "write failure: $!";
close IN;
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 11+ messages in thread* bug#41788: 28.0.50; emacsclient -t doesn't work with vipe from moreutils
2022-06-06 14:49 ` Lars Ingebrigtsen
@ 2022-06-06 16:25 ` Andreas Schwab
2022-06-06 17:03 ` Eli Zaretskii
2022-06-06 17:07 ` Lars Ingebrigtsen
0 siblings, 2 replies; 11+ messages in thread
From: Andreas Schwab @ 2022-06-06 16:25 UTC (permalink / raw)
To: Lars Ingebrigtsen; +Cc: Platon Pronko, 41788
On Jun 06 2022, Lars Ingebrigtsen wrote:
> open(STDIN, "</dev/tty") || die "reopen stdin: $!";
> open(OUT, ">&STDOUT") || die "save stdout: $!";
> close STDOUT;
> open(STDOUT, ">/dev/tty") || die "reopen stdout: $!";
That associates the process with /dev/tty, not the real terminal. But
the running Emacs process usually does not have a controlling terminal,
thus it cannot open /dev/tty. It needs to know the real terminal to be
able to open a tty frame on it.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
^ permalink raw reply [flat|nested] 11+ messages in thread
* bug#41788: 28.0.50; emacsclient -t doesn't work with vipe from moreutils
2022-06-06 16:25 ` Andreas Schwab
@ 2022-06-06 17:03 ` Eli Zaretskii
2022-06-06 17:43 ` Andreas Schwab
2022-06-06 17:07 ` Lars Ingebrigtsen
1 sibling, 1 reply; 11+ messages in thread
From: Eli Zaretskii @ 2022-06-06 17:03 UTC (permalink / raw)
To: Andreas Schwab; +Cc: platon7pronko, larsi, 41788
> Resent-From: Andreas Schwab <schwab@linux-m68k.org>
> Original-Sender: "Debbugs-submit" <debbugs-submit-bounces@debbugs.gnu.org>
> Resent-CC: bug-gnu-emacs@gnu.org
> Resent-Sender: help-debbugs@gnu.org
> Cc: Platon Pronko <platon7pronko@gmail.com>, 41788@debbugs.gnu.org
> From: Andreas Schwab <schwab@linux-m68k.org>
> Date: Mon, 06 Jun 2022 18:25:00 +0200
>
> On Jun 06 2022, Lars Ingebrigtsen wrote:
>
> > open(STDIN, "</dev/tty") || die "reopen stdin: $!";
> > open(OUT, ">&STDOUT") || die "save stdout: $!";
> > close STDOUT;
> > open(STDOUT, ">/dev/tty") || die "reopen stdout: $!";
>
> That associates the process with /dev/tty, not the real terminal. But
> the running Emacs process usually does not have a controlling terminal,
> thus it cannot open /dev/tty. It needs to know the real terminal to be
> able to open a tty frame on it.
So you are saying that, instead of using "/dev/tty", vipe should use
the actual name of the terminal device, obtained via the equivalent of
the 'tty' command? Or is this impossible for what vipe wants to do?
^ permalink raw reply [flat|nested] 11+ messages in thread
* bug#41788: 28.0.50; emacsclient -t doesn't work with vipe from moreutils
2022-06-06 17:03 ` Eli Zaretskii
@ 2022-06-06 17:43 ` Andreas Schwab
2022-06-14 4:38 ` Platon Pronko
0 siblings, 1 reply; 11+ messages in thread
From: Andreas Schwab @ 2022-06-06 17:43 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: platon7pronko, larsi, 41788
On Jun 06 2022, Eli Zaretskii wrote:
> So you are saying that, instead of using "/dev/tty", vipe should use
> the actual name of the terminal device, obtained via the equivalent of
> the 'tty' command?
Yes, the meaning of /dev/tty depends on the process.
> Or is this impossible for what vipe wants to do?
It just needs to do the same as emacsclient.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
^ permalink raw reply [flat|nested] 11+ messages in thread
* bug#41788: 28.0.50; emacsclient -t doesn't work with vipe from moreutils
2022-06-06 16:25 ` Andreas Schwab
2022-06-06 17:03 ` Eli Zaretskii
@ 2022-06-06 17:07 ` Lars Ingebrigtsen
2022-06-06 17:40 ` Andreas Schwab
1 sibling, 1 reply; 11+ messages in thread
From: Lars Ingebrigtsen @ 2022-06-06 17:07 UTC (permalink / raw)
To: Andreas Schwab; +Cc: Platon Pronko, 41788
Andreas Schwab <schwab@linux-m68k.org> writes:
> That associates the process with /dev/tty, not the real terminal. But
> the running Emacs process usually does not have a controlling terminal,
> thus it cannot open /dev/tty. It needs to know the real terminal to be
> able to open a tty frame on it.
This works fine, though:
echo a | EDITOR="emacs -nw" vipe
It's only when using emacsclient that we get an error...
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 11+ messages in thread
* bug#41788: 28.0.50; emacsclient -t doesn't work with vipe from moreutils
2022-06-06 17:07 ` Lars Ingebrigtsen
@ 2022-06-06 17:40 ` Andreas Schwab
0 siblings, 0 replies; 11+ messages in thread
From: Andreas Schwab @ 2022-06-06 17:40 UTC (permalink / raw)
To: Lars Ingebrigtsen; +Cc: Platon Pronko, 41788
On Jun 06 2022, Lars Ingebrigtsen wrote:
> Andreas Schwab <schwab@linux-m68k.org> writes:
>
>> That associates the process with /dev/tty, not the real terminal. But
>> the running Emacs process usually does not have a controlling terminal,
>> thus it cannot open /dev/tty. It needs to know the real terminal to be
>> able to open a tty frame on it.
>
> This works fine, though:
>
> echo a | EDITOR="emacs -nw" vipe
>
> It's only when using emacsclient that we get an error...
Of course, emacs -nw runs on the same terminal.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2022-06-14 11:26 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-06-10 13:19 bug#41788: 28.0.50; emacsclient -t doesn't work with vipe from moreutils Platon Pronko
2022-06-06 14:00 ` Lars Ingebrigtsen
2022-06-06 14:44 ` Andreas Schwab
2022-06-06 14:49 ` Lars Ingebrigtsen
2022-06-06 16:25 ` Andreas Schwab
2022-06-06 17:03 ` Eli Zaretskii
2022-06-06 17:43 ` Andreas Schwab
2022-06-14 4:38 ` Platon Pronko
2022-06-14 11:26 ` Eli Zaretskii
2022-06-06 17:07 ` Lars Ingebrigtsen
2022-06-06 17:40 ` Andreas Schwab
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