Re: [PATCH] gnu.scm: add syntatic sugar macros for use-modules of packages, services, and system in the OS EDSL.

[David Thompson <dthompson2@worcester.edu>]

jgrant@parenthetical.io writes:

> These macros allow for nicer and more condensed loading of package, 
> service, and system modules in the OS EDSL. For an example of this, 
> please take a look of the sample-os-config.scm (above the commented-out 
> line).

I like it.

> I want to thank davexunit for his influence on this , this will be my 
> first non-package recipe config. :^)

:)

> From ee940d31ec9b3847c1bd9dfe817ba8f6550361bc Mon Sep 17 00:00:00 2001
> From: "Joshua S. Grant" <jgrant@parethetical.io>
> Date: Sun, 18 Jan 2015 16:23:21 -0600
> Subject: [PATCH] [PATCH] gnu.scm: add syntactic sugar macros for use-modules
>  of packages, services, and system in the OS EDSL.
>
> ---
>  gnu.scm | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>
> diff --git a/gnu.scm b/gnu.scm
> index eb0bf71..bca4586 100644
> --- a/gnu.scm
> +++ b/gnu.scm
> @@ -1,5 +1,6 @@
>  ;;; GNU Guix --- Functional package management for GNU
>  ;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
> +;;; Copyright © 2015 Joshua S. Grant <jgrant@parenthetical.io>
>  ;;;
>  ;;; This file is part of GNU Guix.
>  ;;;
> @@ -44,4 +45,19 @@
>                    (module-use! i (resolve-interface m))))
>                %public-modules)))
>  
> +;;; Commentary:
> +;;;
> +;;; Macros that add Syntatic Sugar to use-modules of packages, services, and system.
> +;;;
> +;;; Code:

The 'Commentary', and 'Code' stuff is saved for the very top of a module
file.  Just leave the actual comment (using 2 semi-colons instead of 3)
and make sure to keep lines under 80 characters.  Use the
'fill-paragraph' function in Emacs to do it.

> +
> +(define-syntax-rule (use-package-modules module ...)
> +  (use-modules (gnu packages module) ...))
> +
> +(define-syntax-rule (use-service-modules module ...)
> +  (use-modules (gnu services module) ...))
> +
> +(define-syntax-rule (use-system-modules module ...)
> +  (use-modules (gnu system module) ...))
> +
>  ;;; gnu.scm ends here
> -- 
> 2.1.0

Looking good!

-- 
David Thompson
Web Developer - Free Software Foundation - http://fsf.org
GPG Key: 0FF1D807
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