GNU bug report logs - #63982
[Shepherd] shepherd does not handle signals after 'daemonize'

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From: nils <at> landt.email
To: "63982 <at> debbugs.gnu.org" <63982 <at> debbugs.gnu.org>
Subject: bug#63982: Shepherd wrong-type-arg
Date: Sun, 18 Jun 2023 17:14:46 +0200 (CEST)

Hello,

I am affected by this as well, but with slightly different symptoms.
Using guix home on a foreign system (Debian 12), I tried different shepherd versions with

(service home-shepherd-service-type
 (home-shepherd-configuration
   (shepherd (specification->package "shepherd <at> 0.9")))

, and guix home describe --list-installed shows me that this works (in the sense that a different shepherd version is installed).
None of the versions I tried got me a functional shepherd service.

These are the error messages by shepherd version:

0.8.1:
Service root has been started.
WARNING: Use of `load' in declarative module (#{ g91}#).  Add #:declarative? #f to your define-module invocation.
Loading /gnu/store/w6rlja8v65dwv16ivcqx513q7827n6aq-shepherd.conf.
herd: exception caught while executing 'load' on service 'root':
In procedure string-append: Wrong type (expecting string): #f

No /run/user/1000/shepherd/socket is created. 

0.9.3:
Service root has been started.
WARNING: Use of `load' in declarative module (#{ g117}#).  Add #:declarative? #f to your define-module invocation.
wrong-type-arg("string-append" "Wrong type (expecting ~A): ~S" ("string" #f) (#f))

Some deprecated features have been used.  Set the environment
variable GUILE_WARN_DEPRECATED to "detailed" and rerun the
program to get more information.  Set it to "no" to suppress
this message.

No /run/user/1000/shepherd/socket is created.

0.10.1:
Starting service root...
Service root started.
Service root running with value #t.
Service root has been started.
WARNING: Use of `load' in declarative module (#{ g107}#).  Add #:declarative? #f to your define-module invocation.
wrong-type-arg("string-append" "Wrong type (expecting ~A): ~S" ("string" #f) (#f))

No /run/user/1000/shepherd/socket is created.

0.10.99:
Starting service root...
Service root started.
Service root running with value #t.
Service root has been started.
WARNING: Use of `load' in declarative module (#{ g119}#).  Add #:declarative? #f to your define-module invocation.
Uncaught exception while loading configuration file '/gnu/store/w6rlja8v65dwv16ivcqx513q7827n6aq-shepherd.conf': (wrong-type-arg "string-append" "Wrong type (expecting ~A): ~S"
 ("string" #f) (#f))

, and then the reconfiguration hangs. /run/user/1000/shepherd/socket is created, and herd status shows that root is started, other services are not shown, and are not started.


Content of config (/gnu/store/w6rlja8v65dwv16ivcqx513q7827n6aq-shepherd.conf):
(begin (use-modules (srfi srfi-34) (system repl error-handling)) (apply register-services (map (lambda (file) (load file)) (quote ("/gnu/store/71n4r0hccps574aqcks7zyk5rz5zardq-
shepherd-eww.scm" "/gnu/store/0r14z4psnf9h2nfqiflm0nv6m2bv04si-shepherd-eww-open-lockscreen-like-background.scm" "/gnu/store/ylidynn5akvk3lmqrxbgqkz0c8hn3y8c-shepherd-syncthing
.scm" "/gnu/store/9igwbpbwavl6r94ph7qss7i5cqq9d8nj-shepherd-mcron.scm")))) (action (quote root) (quote daemonize)) (format #t "Starting services...~%") (let ((services-to-start
(quote (eww eww-open-lockscreen-like-background syncthing mcron)))) (if (defined? (quote start-in-the-background)) (start-in-the-background services-to-start) (for-each start
services-to-start)) (redirect-port (open-input-file "/dev/null") (current-input-port))))

~/.local/state/log/shepherd.log does not contain anything that's not already in the messages above.

Is there anything else I can provide? Without a running shepherd, my system doesn't work super well.

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