GNU bug report logs - #28260
tcsh/csh needs separate /etc/profile - like file

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Package: guix; Severity: wishlist; Reported by: ng0 <ng0@HIDDEN>; dated Mon, 28 Aug 2017 08:16:01 UTC; Maintainer for guix is bug-guix@HIDDEN.
Severity set to 'wishlist' from 'normal' Request was from ludo@HIDDEN (Ludovic Courtès) to control <at> debbugs.gnu.org. Full text available.

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Date: Mon, 28 Aug 2017 08:14:38 +0000
From: ng0 <ng0@HIDDEN>
To: bug-guix@HIDDEN
Subject: tcsh/csh needs separate /etc/profile - like file
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I am looking into making usage of different shells easier on GuixSD.
I already noticed that our SLIM-service needs a change
to work for tcsh, but it seems as if we should also create
a file in the %base-services or a small service:

quote man tcsh(1):

> Startup and shutdown
>   A login shell begins by executing commands from the system files /etc/c=
sh.cshrc and /etc/csh.login.  It then executes commands from files in the u=
ser's home directory: first ~/.tcshrc (+) or, if  ~/.tcshrc  is  not
>   found,  ~/.cshrc,  then the contents of ~/.history (or the value of the=
 histfile shell variable) are loaded into memory, then ~/.login, and finall=
y ~/.cshdirs (or the value of the dirsfile shell variable) (+).  The
>   shell may read /etc/csh.login before instead of after /etc/csh.cshrc, a=
nd ~/.login before instead of after ~/.tcshrc or ~/.cshrc and ~/.history, i=
f so compiled; see the version shell variable. (+)
>
>   Non-login shells read only /etc/csh.cshrc and ~/.tcshrc or ~/.cshrc on =
startup.

It might take a while for me to find time for this and to test it,
but I will try and add such a file (/etc/csh.login) via a service.

However this _seems_ to be only a problem with SLIM as far as I could test,
as I am able to log in using tcsh (in a profile which never used bash and
uses tcsh as its user shell) at the tty. SLIM fails for login_command
reasons. Nevertheless it should be safer to add this for tcsh users
who are new to Guix and who did not add basic stuff to their .tcshrc
such as

> setenv PATH $HOME/.guix-profile/bin:$HOME/.guix-profile/sbin:/run/setuid-=
programs:/run/current-system/profile/bin:/run/current-system/profile/sbin
> setenv INFOPATH $HOME/.guix-profile/share/info:/run/current-system/profil=
e/share/info:$HOME/.guix-profile/share/info:/run/current-system/profile/sha=
re/info
> setenv GUILE_LOAD_COMPILED_PATH $HOME.guix-profile/lib/guile/2.2/site-cca=
che:$HOME.guix-profile/share/guile/site/2.2:/run/current-system/profile/lib=
/guile/2.2/site-ccache:/run/current-system/profile/share/guile/site/2.2
> setenv GUILE_LOAD_PATH $HOME/.guix-profile/share/guile/site/2.2:/run/curr=
ent-system/profile/share/guile/site/2.2
> setenv GIT_EXEC_PATH $HOME/.guix-profile/libexec/git-core

I will also look at the ~/.guix-profile/etc/profile variant
and see that we can generate a similar file for tcsh.

> export INFOPATH=3D"${GUIX_PROFILE:-/gnu/store/1n2ay00nvsybwszvjdm7acc39pm=
0k851-profile}/share/info${INFOPATH:+:}$INFOPATH"

a very simple solution could be
setenv INFOPATH $GUIX_PROFILE/share/info

which of course does not include the

> export INFOPATH=3D$HOME/.guix-profile/share/info:/run/current-system/prof=
ile/share/info

which can be set in /etc/profile so I assume it
could be (untested):

setenv INFOPATH $GUIX_PROFILE/share/info:INFOPATH

We can also test very easily for tcsh if that helps
solving any future problems:

> [abyayala] 8:08am ~ > echo $shell
> /gnu/store/kfv79p5di3bz3jl4j1vn91v69ga6sqk3-tcsh-6.20.00/bin/tcsh
> [abyayala] 8:08am ~ > exit
> # now we are back in bash again (no tcsh-only environment here)
> user@abyayala ~$ echo $shell
>
> # as you can see bash returns empty here
> # and so does zsh aswell.
--=20
ng0
GnuPG: A88C8ADD129828D7EAC02E52E22F9BBFEE348588
GnuPG: https://n0is.noblogs.org/my-keys
https://www.infotropique.org https://krosos.org

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Acknowledgement sent to ng0 <ng0@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-guix@HIDDEN. Full text available.
Report forwarded to bug-guix@HIDDEN:
bug#28260; Package guix. Full text available.
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Last modified: Sun, 26 Nov 2017 14:30:02 UTC

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