linux-ext4 - Re: [PATCH v3 0/5] dumpe2fs: add JSON output format

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Date:   Thu, 5 Apr 2018 18:21:39 +0300
From:   Viktor Prutyanov <viktor.prutyanov@...tuozzo.com>
To:     linux-ext4@...r.kernel.org
Cc:     Theodore Ts'o <tytso@....edu>,
        Dmitry Monakhov <dmonakhov@...nvz.org>
Subject: Re: [PATCH v3 0/5] dumpe2fs: add JSON output format

On Tue, 20 Feb 2018 12:59:45 +0300
Viktor Prutyanov <viktor.prutyanov@...tuozzo.com> wrote:

ping

> v3: range object format changed from {begin, end} to {start, len}
> 
> v2: added JSON indentation, ranges and offsets are represented by
> objects
> 
> This collection of patches adds support of JSON format.
> First patch adds helpers for creating structured objects and printing
> such objects in JSON format. Others use these helpers for all info
> from existing operation modes.
> 
> After these patches, for example, using jq utility, we can easily
> print "blocks" field from specific group:
> 
> dumpe2fs /dev/sdb2 -j | jq -r '.desc[] | select(.num == "5") |
> {blocks:.blocks}'
> 
> {
>   "blocks": {
>     "start": "163840",
>     "len": "32768"
>   }
> }
> 
> Helpers can later be easily extended to support new output formats
> (not only JSON).
> 
> Viktor Prutyanov (5):
>   libsupport: add JSON output helpers
>   dumpe2fs: add JSON output of block groups
>   dumpe2fs: add JSON output of superblock
>   dumpe2fs: add JSON output of journal
>   dumpe2fs: add JSON output of bad blocks
> 
>  debugfs/Makefile.in     |   4 +-
>  lib/e2p/e2p.h           |   8 ++
>  lib/e2p/ljs.c           |  57 ++++++++
>  lib/e2p/ls.c            | 362
> ++++++++++++++++++++++++++++++++++++++++++++++++
> lib/e2p/pe.c            |  18 +++ lib/e2p/ps.c            |  10 ++
>  lib/support/Makefile.in |   7 +-
>  lib/support/json-out.c  | 326
> +++++++++++++++++++++++++++++++++++++++++++ lib/support/json-out.h
> |  69 +++++++++ misc/Makefile.in        |   8 +-
>  misc/dumpe2fs.8.in      |   3 +
>  misc/dumpe2fs.c         | 323
> ++++++++++++++++++++++++++++++++++++++++-- 12 files changed, 1173
> insertions(+), 22 deletions(-) create mode 100644
> lib/support/json-out.c create mode 100644 lib/support/json-out.h
>