Bug#1026867: transition: youtube-dl

[Andres Salomon <dilinger@queued.net>]

Package: release.debian.org
Severity: normal
User: release.debian.org@packages.debian.org
Usertags: transition
X-Debbugs-Cc: 994151@bugs.debian.org, debian-devel@lists.debian.org

Hi,

Youtube-dl has mostly stopped development other than basic maintenance, and
development has resumed with the yt-dlp project (which is already in debian)
as documented in <https://bugs.debian.org/994151>.

For the bookworm release, we intend to drop the youtube-dl upstream code 
from
the archive, with an empty transition package that will simply depend on 
yt-dlp
and a NEWS entry informing users of the change. We considered attempting a
seamless transition that provided a wrapper python module for the youtube_dl
library and the /usr/bin/youtube-dl executable, but there are complications
(such slightly different behavior between the two programs even when using
yt-dlp's provided '--compat-options youtube-dl' argument, and programs 
that are
aware of both yt-dlp and youtube-dl that will get confused if we pretend 
that
youtube-dl is yt-dlp). Rather than risk the potential to introduce 
silent bugs
into user setups, we prefer to simply inform users of the change and require
them to manually verify their setups with yt-dlp.

I filed 13 bugs with packages that have reverse dependencies on youtube-dl
(ignoring those packages that depend on yt-dlp|youtube-dl); half have 
already
been fixed. I plan to bump the severity on remaining bugs once the 
youtube-dl
transition package is uploaded to sid (for those packages that actually 
break
without a youtube-dl script/library).

Depends on youtube-dl:
ytcc: #1024212
youtubedl-gui: #1024214 (done)
mkchromecast: #1024216

Recommends youtube-dl:
lollypop: #1024217 (done)
celluloid: #1024222
lives: #1024229
libmpv1: #1026866

Suggests youtube-dl:
git-annex: #1024226 (done)
gpodder: #1024227 (done)
liquidsoap: #1024228 (done)
ytfzf: #1024230 (done)
acetoneiso: #1024231
python3-moviepy: #1024232

There are no library or ABI concerns with this transition, this is mostly
to get a transition slot and to track the transition.

Ben file:

title = "youtube-dl";
is_affected = .build-depends ~ /youtube-dl/ | .depends ~ /youtube-dl/;
is_good = .build-depends ~ /yt-dlp/ | .depends ~ /yt-dlp/;
is_bad = .build-depends ~ /youtube-dl/ | .depends ~ /youtube-dl/;

I can NMU where necessary for the remaining bugs, once the transition is
underway.

Thanks,
Andres