branch wip-service-refactor created (now c17408c)

[Ludovic Courtès]

civodul pushed a change to branch wip-service-refactor
in repository guix.

        at  c17408c   PRELIM: services: Introduce extensible abstract services.

This branch includes the following new commits:

       new  7954399   gexp: Add 'computed-file'.
       new  63afc8f   gexp: Add 'program-file'.
       new  4e8327d   gexp: Add 'mixed-text-file'.
       new  d3f3529   services: 'mingetty-service' no longer takes monadic 
values.
       new  bf8b440   system: Make service procedures non-monadic.
       new  41551a4   services: mingetty-service: Use <mingetty-configuration> 
objects.
       new  cd4f869   services: nscd-service: Fit everything into 
<nscd-configuration>.
       new  10a5bd6   gexp: Add 'scheme-file'.
       new  b8c6db8   system: pam: Use 'computed-file' instead of 
'gexp->derivation'.
       new  c10b0db   guix system: Add '--derivation'.
       new  88d4af6   system: Account skeleton API is non-monadic.
       new  c17408c   PRELIM: services: Introduce extensible abstract services.

The 12 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "adds" were already present in the repository and have only
been added to this reference.