bug#67649: shepherd: (shepherd support) is visible for start GEXP

[Attila Lendvai]

the facts:
----------

start GEXP's of services are loaded into unnamed modules. the definitions from 
(shepherd support) are visible in these unnamed modules. see the attached 
rerpoducer.

it can be run with:

$(guix system --no-graphic vm reproducer.scm)

and in the VM (must use fold, because it's a dumb terminal):

cat /var/log/messages | fold -150

and observe that (shepherd support) is listed.


questions:
----------

is this indended? i.e. part of the shepherd API?

if not, then this is probably a bug. looking at the public definitions in 
(shepherd support), it's not obvious that those are meant to be available for 
the users of shepherd. either way, this should probably be documented with at 
least a comment at the top of the file.

if this is intended, then where is this module imported? i looked all around, 
and i can't seem to find what mechanism imports this support module into the 
unnamed module that are used for the GEXPs.


my ultimate issue:
------------------

my service code has conflicting definitions with (shepherd support), and i need 
to know the intent in the shepherd API to decide on the proper fix.

-- 
• attila lendvai
• PGP: 963F 5D5F 45C7 DFCD 0A39
--
“Tact is a skill that can turn brutal honesty into just honesty. It's a skill 
that develops with practice, and one that's harder to use when emotions are 
running high. But you can't go towards someone with a verbal fist and expect a 
hug in return. When method matches intention, outcomes are much more peaceful.”
        — Doe Zantamata

reproducer.scm
Description: Text Data