linux-ext4 - Re: [proposal] making filesystem tools more machine friendly

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Message-ID: <20170705181113.GA20326@infradead.org>
Date:   Wed, 5 Jul 2017 11:11:13 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Jan Tulak <jtulak@...hat.com>
Cc:     linux-fsdevel@...r.kernel.org, linux-btrfs@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-xfs <linux-xfs@...r.kernel.org>
Subject: Re: [proposal] making filesystem tools more machine friendly

Hi Jan,

I really like the idea out json output for fs/block tools.

nvme-cli has been doing it for a while, and that has been very
useful.  It comes with it's own little handrolled json output
helpers:

	https://github.com/linux-nvme/nvme-cli/blob/master/json.c

so it doesn't introduce any new dependencies.  If you want to parse
input as well a library might be a better approach, though.

I really don't like the shared object evms model mention in the thread,
as that creates hard ELF dependencies.