Change 498696 had a related patch set uploaded (by JJMC89; owner: JJMC89):
[pywikibot/core@master] [IMPR] Move categories without leaving a redirect

https://gerrit.wikimedia.org/r/498696

I'm moving this discussion from Gerrit to the task.

@Dvorapa wrote:

@Xqt wrote:

@JJMC89 wrote:

@Dvorapa wrote:
In movepages.py we use -noredirect param. Perhaps we should use it here as well?

The task asks for it to be the default. An inverse parameter like -nodelete could be added if needed. Naming it -nonoredirect seems odd though.

I am fine with a -noredirect param but placing a soft redirect and set a speedy deletion template after this is nonesense. The result of the current implementation is having no redirect (without any parameter). The opposite could be -softredirect to keep that template if a wiki has it (e.g. de-wiki does not allow soft redirects on categories).

I mean, do we need leaving soft redirect for categories? (that was what I tried to ask before; anyway -softredirect, -nodelete, -leaveredirect or whatever similar should be fine)

The logic for user that can move categories (move-categorypages) looks something like:

1. If -nodelete is specified (delete_oldcat=False), keep a redirect.
2. Else if the user has the suppressredirect right, then use noredirect when moving the category to not leave a redirect.
3. Else if the user has the delete right, delete the redirect left behind after the move.
4. Else, tag the redirect with {{delete}}.

Do we want a -leaveredirect option? It would make the logic something like:

1. If -nodelete is specified (delete_oldcat=False), keep a redirect.
2. Else if -leaveredirect is specified, keep a redirect.
3. Else if the user has the suppressredirect right, then use noredirect when moving the category to not leave a redirect.
4. Else if the user has the delete right, delete the redirect left behind after the move.
5. Else, tag the redirect with {{delete}}.

Unless I'm missing something, it wouldn't be different than use the existing -nodelete if you want to keep the redirect.

To me the first option seems reasonable

In T150093#5052169, @Dvorapa wrote:

To me the first option seems reasonable

Ok, my patch follows that.

Change 498696 merged by jenkins-bot:
[pywikibot/core@master] [IMPR] Move categories without leaving a redirect

https://gerrit.wikimedia.org/r/498696