From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alex Kost <alezost@gmail.com>
Subject: Re: [PATCH] scripts: package: Add --install-from-file option.
Date: Mon, 10 Aug 2015 17:22:50 +0300
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	(David Thompson's message of "Sun, 09 Aug 2015 11:59:19 -0400")
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To: David Thompson <dthompson2@worcester.edu>
Cc: guix-devel@gnu.org

David Thompson (2015-08-09 18:59 +0300) wrote:

> In my personal projects, I keep a 'package.scm' file in the root of the
> source tree for use with 'guix environment -l'.  However, it's also
> handy to install that package by using 'guix package -e':
>
>     guix package -e '(primitive-load "package.scm")'
>
> This patch adds a shorthand for this:
>
>     guix package -f package.scm
>
> The motivation for this is to ultimately encourage other people to keep
> a 'package.scm' file in their own repos for building reproducible
> development environments and easily testing development snapshots, like
> what we do with our 'guix-devel' package.
>
> I'd like to add the same option for 'guix build', if this is approved.

I agree that it will be easy for users than -e option.

And I'm also for adding --from-file option to 'guix build'.  Thank you.

[...]
> +@example
> +(use-modules (guix packages)
> +             (guix download)
> +             (guix build-system gnu)
> +             (guix licenses))

(gnu packages gawk) module should also be put there, as the package uses
'gawk' input.

> +(package
> +  (name "hello")
> +  (version "2.8")
> +  (source (origin
> +            (method url-fetch)
> +            (uri (string-append "mirror://gnu/hello/hello-" version
> +                                ".tar.gz"))
> +            (sha256
> +             (base32 "0wqd8sjmxfskrflaxywc7gqw7sfawrfvdxd9skxawzfgyy0pzdz6"))))
> +  (build-system gnu-build-system)
> +  (arguments `(#:configure-flags '("--enable-silent-rules")))
> +  (inputs `(("gawk" ,gawk)))
> +  (synopsis "Hello, GNU world: An example GNU package")
> +  (description "Guess what GNU Hello prints!")
> +  (home-page "http://www.gnu.org/software/hello/")
> +  (license gpl3+))
> +@end example

-- 
Alex