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[bug#33448] [PATCH] describe: Add json format.

From: Ludovic Courtès
Subject: [bug#33448] [PATCH] describe: Add json format.
Date: Wed, 21 Nov 2018 22:36:01 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux)

Oleg Pykhalov <address@hidden> skribis:

> address@hidden (Ludovic Courtès) writes:


>> Last question: what use case do you have in mind regarding the JSON
>> format?  I’m asking because we don’t have tools that can consume it so
>> far.
> Well, I wanted to get a command line way to select things in ‘guix
> channel’ output, e.g. to get a current ‘guix’ channel commit:
> ./pre-inst-env guix describe --profile=$HOME/.config/guix/current 
> --format=json | jq --raw-output 'map(select(.name == "guix"))'[0].commit
> I didn't think that ‘recsel’ actually could be used in the same way:
> ./pre-inst-env guix describe --profile=$HOME/.config/guix/current 
> --format=recutils | recsel -e 'name = "guix"' -P commit

I see, that makes sense.  It’s OK to have both JSON and recutils.

Thank you!


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