...for (home-environment-default-essential-services this-home-environment)
usage, since using home-environment-essential-services in this case will
introduce infinite loop.

* gnu/home.scm (home-environment-default-essential-services): Export.

Merges: #9658

* gnu/home.scm (%base-home-services): Add
‘home-shepherd-timer-service-type’ and
‘home-shepherd-transient-service-type’.

Reviewed-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Change-Id: Ib48744b82c7e4c6ff6b8ac3d669774feda813f4b

* gnu/home.scm (%base-home-services): Add instance of
‘home-log-rotation-service-type’.
* doc/guix.texi (Shepherd Home Service): Document it.

Change-Id: I00a98da100e3a07fe409f3c44d8ab88e743a8e3e

* gnu/home.scm (%base-home-services): New variable.
(<home-environment>)[services]: Change default to ‘%base-home-services’.
* guix/scripts/home/import.scm (manifest+configuration-files->code): Use
‘%base-home-services’ by default.
* tests/home-import.scm (match-home-environment-no-services)
(match-home-environment-transformations)
(match-home-environment-no-services-nor-packages)
(match-home-environment-bash-service)
(match-home-environment-bash-service-with-alias): Adjust accordingly.
* doc/he-config-bare-bones.scm: Use ‘%base-home-services’.
* doc/guix.texi (Declaring the Home Environment): Add index entry for
‘%base-home-services’.

Change-Id: Id95ede62b97a976aad138bfc4b63fc0bdf37c7de

This guides newcomers who might stick a single (service …) form
in this field.

* gnu/services.scm (validate-service-list): New macro.
(%validate-service-list): New procedure.
* gnu/system.scm (<operating-system>)[services]: Add ‘sanitize’.
* gnu/home.scm (<home-environment>)[services]: Add ‘sanitize’.

Change-Id: I9e29bd9a078e87b627ab766fd669ba9de79f8473

* gnu/home.scm (home-environment-with-provenance): Make `config-file`
optional, with the default taken from the HE location info.

Signed-off-by: Andrew Tropin <andrew@trop.in>

* gnu/home.scm (home-environment-packages): Export procedure.

Signed-off-by: Andrew Tropin <andrew@trop.in>

gnu/home.scm (home-environment-derivation): Fix docstring.

This reverts commit 670818a4049edb8a77a5b596fbc7558bde57165c,
thereby reinstating 5df8f7802e8b45855e8f84830677001dc631e4f7.

* gnu/home.scm (%profile-generation-rx): New variable.
(home-generation-base): New procedure.

This reverts commit 5df8f7802e8b45855e8f84830677001dc631e4f7.
This commit or the next one appears to have broken ‘guix pull’.