Re: bin/56496: etcupdate(8) merge formatting issue

[Hauke Fath <hauke%Espresso.Rhein-Neckar.DE@localhost>]

The following reply was made to PR bin/56496; it has been noted by GNATS.

From: Hauke Fath <hauke%Espresso.Rhein-Neckar.DE@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: gnats-admin%netbsd.org@localhost, RVP <rvp%SDF.ORG@localhost>
Subject: Re: bin/56496: etcupdate(8) merge formatting issue
Date: Fri, 19 Nov 2021 12:31:43 +0100

 On Thu, 18 Nov 2021 22:40:01 +0000 (UTC), RVP wrote:
 >  On Thu, 18 Nov 2021, Hauke Fath wrote:
 > =20
 >  > Even when all 'tset -Qs' is supposed to do is produce shell-specific=
 =3D20
 >  > command strings for setting TERM?
 > =20
 >  Unfortunately, yes. One has to do `tset -Qs -` to make tset not
 >  send the term init sequences. You can check this by running both
 >  command variants under script.
 
 That would be great, except for whatever reason `tset -Qs -` output=20
 prepends the terminal string:
 
 % echo `tset -Qs`
 set noglob; setenv TERM xterm; unset noglob;
 % echo `tset -Qs -`
 xterm set noglob; setenv TERM xterm; unset noglob;
 % eval `tset -Qs -`
 xterm: No absolute path found for shell: set
 %=20
 
 >  If that tset command is in /etc/csh.login, then all (login-shell) uses o=
 f
 >  csh would show this issue--provided `-oxtabs' is _also_ set.=20
 
 Which the tset command does, for whatever reason.
 
 >  In some
 >  instances it is not, and that would also account for why some folks see
 >  this issue and others do not.
 > =20
 >  And, since this tab-setting stuff is an xterm feature, once set, will
 >  propagate to affect other command run in that session--sh for instance
 >  will appear to suffer this issue as well even when its .rc scripts are
 >  not running tset at all.
 
 Would it make sense to follow the eval `tset ...` with an 'stty oxtabs'=20
 for (at least) TERM =3D=3D xterm, or would I incur any more side-effects?
 
 >  Hope this helps...
 
 It did. A lot.
 
 Thanks,
 Hauke
 
 --=20
 Hauke Fath                        <hauke%Espresso.Rhein-Neckar.DE@localhost>
 Linn=E9weg 7
 64342 Seeheim-Jugenheim
 Germany