GNU bug report logs - #15775
24.3.50; "WARNING: terminal is not fully functional" in Comint and Eshell

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Package: emacs; Reported by: Dmitry Gutov <dgutov@HIDDEN>; dated Fri, 1 Nov 2013 01:59:02 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.
Removed tag(s) moreinfo. Request was from Lars Ingebrigtsen <larsi@HIDDEN> to control <at> debbugs.gnu.org. Full text available.

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From: Lars Ingebrigtsen <larsi@HIDDEN>
To: Dmitry Gutov <dgutov@HIDDEN>
Subject: Re: bug#15775: 24.3.50; "WARNING: terminal is not fully functional"
 in Comint and Eshell
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 Content preview: Dmitry Gutov <dgutov@HIDDEN> writes: > Back when I filed
 bug#15775, Glenn merged it with bug#4359. > > Looks like you are fixing only
 the latter bug here. Sorry; didn't catch that. I've now unmerged the bug
 reports, and reopened bug#15775. 
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Dmitry Gutov <dgutov@HIDDEN> writes:

> Back when I filed bug#15775, Glenn merged it with bug#4359.
>
> Looks like you are fixing only the latter bug here.

Sorry; didn't catch that.  I've now unmerged the bug reports, and
reopened bug#15775.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#15775; Package emacs. Full text available.
Disconnected #15775 from all other report(s). Request was from Lars Ingebrigtsen <larsi@HIDDEN> to control <at> debbugs.gnu.org. Full text available.
bug No longer marked as fixed in versions 29.1 and reopened. Request was from Debbugs Internal Request <help-debbugs@HIDDEN> to internal_control <at> debbugs.gnu.org. Full text available.

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Subject: Re: bug#15775: 24.3.50; "WARNING: terminal is not fully functional"
 in Comint and Eshell
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To: Lars Ingebrigtsen <larsi@HIDDEN>, Dan Nicolaescu <dann@HIDDEN>
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On 02.06.2022 16:07, Lars Ingebrigtsen wrote:
> Lars Ingebrigtsen<larsi@HIDDEN>  writes:
> 
>> This change makes "git grep" work as a grep command with `M-x grep' (if
>> you remove --null).  It's shouldn't have a negative impact on much
>> anything else (because no pagers should be used anywhere here), but
>> perhaps it should be done in grep.el instead of compile.el...
>>
>> Anybody got any comments?
> [...]
> 
>> +              ;; Some external programs (like "git grep") use a pager;
>> +              ;; defeat that.
>> +              (list "PAGER=")
> Nobody had any comments, and it doesn't seem likely that this will
> regress anything, so I've now pushed this to Emacs 29.

Hi Lars,

Back when I filed bug#15775, Glenn merged it with bug#4359.

Looks like you are fixing only the latter bug here.

The package I mentioned in the original report, inf-ruby, derives from 
comint-mode.

It doesn't derive from compilation-mode, so the pushed change can't 
affect it or fix the problem there.

N.B.: Even a decade later, I still have

   (setenv "PAGER" (executable-find "cat"))

in my init script.
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#15775; Package emacs. Full text available.
bug marked as fixed in version 29.1, send any further explanations to 15775 <at> debbugs.gnu.org and Dmitry Gutov <dgutov@HIDDEN> Request was from Lars Ingebrigtsen <larsi@HIDDEN> to control <at> debbugs.gnu.org. Full text available.

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From: Lars Ingebrigtsen <larsi@HIDDEN>
To: Dan Nicolaescu <dann@HIDDEN>
Subject: Re: bug#15775: 24.3.50; "WARNING: terminal is not fully functional"
 in Comint and Eshell
References: <E1QcQzo-0007pn-KL@HIDDEN>
 <m3tyb6oomk.fsf@HIDDEN> <4E0D7000.7040802@HIDDEN>
 <m3fwmqjolh.fsf@HIDDEN> <yxq62nm9cay.fsf@HIDDEN>
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Date: Thu, 02 Jun 2022 15:07:06 +0200
In-Reply-To: <87czgsqhfa.fsf_-_@HIDDEN> (Lars Ingebrigtsen's message of
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 Content preview: Lars Ingebrigtsen <larsi@HIDDEN> writes: > This change
 makes
 "git grep" work as a grep command with `M-x grep' (if > you remove --null).
 It's shouldn't have a negative impact on much > anything else (because no
 pagers should be used anywhere [...] 
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Lars Ingebrigtsen <larsi@HIDDEN> writes:

> This change makes "git grep" work as a grep command with `M-x grep' (if
> you remove --null).  It's shouldn't have a negative impact on much
> anything else (because no pagers should be used anywhere here), but
> perhaps it should be done in grep.el instead of compile.el...
>
> Anybody got any comments?

[...]

> +              ;; Some external programs (like "git grep") use a pager;
> +              ;; defeat that.
> +              (list "PAGER=")

Nobody had any comments, and it doesn't seem likely that this will
regress anything, so I've now pushed this to Emacs 29.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#15775; Package emacs. Full text available.
Added tag(s) moreinfo. Request was from Lars Ingebrigtsen <larsi@HIDDEN> to control <at> debbugs.gnu.org. Full text available.

Message received at 15775 <at> debbugs.gnu.org:


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From: Lars Ingebrigtsen <larsi@HIDDEN>
To: Dan Nicolaescu <dann@HIDDEN>
Subject: Re: bug#15775: 24.3.50; "WARNING: terminal is not fully functional"
 in Comint and Eshell
References: <E1QcQzo-0007pn-KL@HIDDEN>
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Date: Thu, 05 May 2022 14:42:49 +0200
In-Reply-To: <m3wrg0x3kg.fsf@HIDDEN> (Lars Magne Ingebrigtsen's
 message of "Sat, 02 Jul 2011 14:35:59 +0200")
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 Content preview: This change makes "git grep" work as a grep command with `M-x
 grep' (if you remove --null). It's shouldn't have a negative impact on much
 anything else (because no pagers should be used anywhere here) [...] 
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Cc: 15775 <at> debbugs.gnu.org,
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This change makes "git grep" work as a grep command with `M-x grep' (if
you remove --null).  It's shouldn't have a negative impact on much
anything else (because no pagers should be used anywhere here), but
perhaps it should be done in grep.el instead of compile.el...

Anybody got any comments?

diff --git a/lisp/progmodes/compile.el b/lisp/progmodes/compile.el
index 6753cf0b02..c88eb10693 100644
--- a/lisp/progmodes/compile.el
+++ b/lisp/progmodes/compile.el
@@ -1895,6 +1895,9 @@ compilation-start
               (and (derived-mode-p 'comint-mode)
                    (comint-term-environment))
 	      (list (format "INSIDE_EMACS=%s,compile" emacs-version))
+              ;; Some external programs (like "git grep") use a pager;
+              ;; defeat that.
+              (list "PAGER=")
 	      (copy-sequence process-environment))))
         (setq-local compilation-arguments
                     (list command mode name-function highlight-regexp))


-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#15775; Package emacs. Full text available.
Disconnected #15771 from all other report(s). Request was from Glenn Morris <rgm@HIDDEN> to control <at> debbugs.gnu.org. Full text available.
Forcibly Merged 4359 15771 15775. Request was from Glenn Morris <rgm@HIDDEN> to control <at> debbugs.gnu.org. Full text available.
Merged 4359 15775. Request was from Glenn Morris <rgm@HIDDEN> to control <at> debbugs.gnu.org. Full text available.

Message received at submit <at> debbugs.gnu.org:


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From: Dmitry Gutov <dgutov@HIDDEN>
To: bug-gnu-emacs@HIDDEN
Subject: 24.3.50;
 "WARNING: terminal is not fully functional" in Comint and Eshell
Date: Fri, 01 Nov 2013 05:58:15 +0400
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It has been a somewhat common problem with calling external processes
from Emacs. Some references:

http://david.rothlis.net/emacs/customize_general.html#shell

https://github.com/nonsequitur/inf-ruby/issues/33

https://github.com/dgutov/robe/issues/9

The common recommendation is to change the PAGER environment var, and it
works, but why isn't Emacs doing it by default (like with TERM, for
example)?

Can packages just go ahead and set it, without having to leave it to
users? Should they limit the change only to buffers they work with? I
looked at how that could be done with Comint (and a mode deriving from
it), but `make-comint' creates a new buffer, so it's not like I can
change the local value of `process-environment' before the external
process is launched.


In GNU Emacs 24.3.50.3 (x86_64-unknown-linux-gnu, GTK+ Version 3.6.4)
 of 2013-10-30 on axl
Bzr revision: 114852 monnier@HIDDEN
Windowing system distributor `The X.Org Foundation', version 11.0.11303000
System Description:	Ubuntu 13.04
Acknowledgement sent to Dmitry Gutov <dgutov@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs@HIDDEN. Full text available.
Report forwarded to bug-gnu-emacs@HIDDEN:
bug#15775; Package emacs. Full text available.
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