From: ludo@gnu.org (Ludovic Courtès)
To: guix-devel@gnu.org
Subject: Re: Service refactoring
Date: Thu, 10 Sep 2015 18:14:21 +0200 [thread overview]
Message-ID: <87lhcez1ya.fsf@gnu.org> (raw)
In-Reply-To: <871te96k7o.fsf@netris.org> (Mark H. Weaver's message of "Tue, 08 Sep 2015 10:48:11 -0400")
The ‘wip-service-refactor’ currently does the easy part of the service
refactoring, which essentially turns the service procedures into regular
procedures (rather than monadic procedures.)
I think it’s important because it allows users to ‘map’ over
%base-services, for instance, possibly replacing some of the entries,
without actually touching the store (whereas currently, one would first
have to “bind” each item of %base-services, possibly affecting the
store.)
It also makes it easier for newcomers to fiddle with services in their
OS config file.
To do so, the branch adds a few “file-like objects” that really are just
counterparts of existing monadic procedures:
• ‘computed-file’ returns an object with the same meaning as a
‘gexp->derivation’ call;
• ‘program-file’ is the declarative counterpart of ‘gexp->script’.
These objects can be used anywhere in a gexp, which is probably going to
be useful in other places.
--8<---------------cut here---------------start------------->8---
+ 56d3d68 system: Make service procedures non-monadic.
+ 807d34a gexp: Add 'mixed-text-file'.
+ 03d2914 gexp: Add 'program-file'.
+ 82ad249 gexp: Add 'computed-file'.
+ 7dfa966 services: 'mingetty-service' no longer takes monadic values.
--8<---------------cut here---------------end--------------->8---
More to come!
Ludo’.
next prev parent reply other threads:[~2015-09-10 16:14 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-03 21:23 [PATCHES] Get elogind-service working as intended Mark H Weaver
2015-09-04 7:57 ` Andy Wingo
2015-09-06 21:23 ` Service refactoring Ludovic Courtès
2015-09-08 8:47 ` Andy Wingo
2015-09-08 10:12 ` Ludovic Courtès
2015-09-08 10:33 ` Andy Wingo
2015-09-08 14:48 ` Mark H Weaver
2015-09-10 16:05 ` Ludovic Courtès
2015-09-10 16:14 ` Ludovic Courtès [this message]
2015-09-20 15:42 ` Ludovic Courtès
2015-09-21 8:18 ` Andy Wingo
2015-09-21 16:00 ` Ludovic Courtès
2015-09-24 0:33 ` Thompson, David
2015-09-24 7:41 ` Ludovic Courtès
2015-09-24 9:33 ` 宋文武
2015-09-24 17:09 ` Ludovic Courtès
2015-09-25 22:50 ` Christopher Allan Webber
2015-09-26 12:50 ` Ludovic Courtès
2015-09-30 8:59 ` Ludovic Courtès
2015-10-10 21:01 ` Ludovic Courtès
2015-09-10 16:03 ` [PATCHES] Get elogind-service working as intended Ludovic Courtès
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