flac dev - Sep 2020 - metaflac --show-all-tags (patch)

Hi folks,

I always wondered why there is no "metaflac --show-all-tags", in
parallel to --remove-all-tags. Attached you can find a patch for
your consideration. Sample output:

% metaflac --show-all-tags *.flac
01 Pigs on the wing (Part One).flac:ARTIST=Pink Floyd
01 Pigs on the wing (Part One).flac:TRACKNUMBER=01
01 Pigs on the wing (Part One).flac:ALBUM=Animals
01 Pigs on the wing (Part One).flac:TITLE=Pigs on the wing (Part One)
01 Pigs on the wing (Part One).flac:GENRE=Rock
01 Pigs on the wing (Part One).flac:DATE=1977
02 Dogs.flac:ARTIST=Pink Floyd
02 Dogs.flac:TRACKNUMBER=02
02 Dogs.flac:ALBUM=Animals
02 Dogs.flac:TITLE=Dogs
02 Dogs.flac:GENRE=Rock
02 Dogs.flac:DATE=1977
03 Pigs (three different ones).flac:ARTIST=Pink Floyd
03 Pigs (three different ones).flac:TRACKNUMBER=03
03 Pigs (three different ones).flac:ALBUM=Animals
03 Pigs (three different ones).flac:TITLE=Pigs (three different ones)
03 Pigs (three different ones).flac:GENRE=Rock
03 Pigs (three different ones).flac:DATE=1977
04 Sheep.flac:ARTIST=Pink Floyd
04 Sheep.flac:TRACKNUMBER=04
04 Sheep.flac:ALBUM=Animals
04 Sheep.flac:TITLE=Sheep
04 Sheep.flac:GENRE=Rock
04 Sheep.flac:DATE=1977
05 Pigs on the Wing (Part Two).flac:ARTIST=Pink Floyd
05 Pigs on the Wing (Part Two).flac:TRACKNUMBER=05
05 Pigs on the Wing (Part Two).flac:ALBUM=Animals
05 Pigs on the Wing (Part Two).flac:TITLE=Pigs on the Wing (Part Two)
05 Pigs on the Wing (Part Two).flac:GENRE=Rock
05 Pigs on the Wing (Part Two).flac:DATE=1977

Very convenient to get an overview, e.g. to look for typos.

Unfortunately I cannot access the git repository ("git.xiph.org took
too long to respond"), so I hope posting a patch here is OK.


Regards
Harri
-------------- next part --------------
A non-text attachment was scrubbed...
Name: show-all-tags.patch
Type: text/x-diff
Size: 3169 bytes
Desc: not available
URL:
<http://lists.xiph.org/pipermail/flac-dev/attachments/20200913/7432a970/attachment.patch>

Harald Dunkel <harri at afaics.de> wrote:
> I always wondered why there is no "metaflac --show-all-tags", in
> parallel to --remove-all-tags.
Not a maintainer, but I used "-" (stdout) as the destination for
"--export-tags-to=" for many years:

	metaflac --export-tags-to=- /path/to.flac

Nowadays, I prefer "soxi" (part of sox) since it works for
non-FLAC, too (and is less to type)