[rtags] Allow to 'derive' rtags
Since some releases, rtags (structure underlying uicfg) have selector and may be
copied using something like:
new_rtags = deepcopy(original_rtags)
new_rtags.__module__ = __name__
new_rtags.__select__ = custom_selector
The problem is that starting from that, both rtags wil diverge and changes in
original_rtags won't be considered, while we usually want to set a few specific
rules only in new_rtags. To fix this problem, this cset introduces the notion of
"derivated/parent" rtag, eg:
new_rtags = original_rtags.derive(__name__, custom_selector)
Beside easier copying, when using the above method changes in original_rtags
which are not overriden by new_rtags will be considered since it only hold its
specific rules but look among its parent chain for non-found keys.
Along the way, flake8 unittest_rtags.
Closes #16164880
include README
include README.pyramid.rst
include COPYING
include COPYING.LESSER
include pylintrc
include jshintrc
include tox.ini
include flake8-ok-files.txt
include bin/cubicweb-*
include man/cubicweb-ctl.1
recursive-include extras *.bash_completion
include doc/*.rst
include doc/*.txt
include doc/Makefile
recursive-include doc/book *
recursive-include doc/tools *.py
recursive-include doc/tutorials *.rst *.py
recursive-include doc/api *.rst
recursive-include doc/_themes *
recursive-include doc/_static *
include doc/_templates/*.html
include doc/changes/*.rst
recursive-include doc/dev *.txt *.rst
recursive-include doc/images *.png *.svg
include doc/conf.py
include cubicweb/devtools/fix_po_encoding
recursive-include cubicweb/misc *.py *.png *.display
include cubicweb/web/views/*.pt
recursive-include cubicweb/web/data external_resources *.js *.css *.py *.png *.gif *.ico *.ttf *.svg *.woff *.eot
recursive-include cubicweb/web/wdoc *.rst *.png *.xml
recursive-include cubicweb/devtools/data *.js *.css *.sh
recursive-include cubicweb/i18n *.po
recursive-include cubicweb/schemas *.py *.sql
recursive-include requirements *.txt
recursive-include cubicweb/test/data bootstrap_cubes *.py *.sql
recursive-include cubicweb/test/data-rewrite bootstrap_cubes *.py
recursive-include cubicweb/test/data_schemareader *.py
recursive-include cubicweb/dataimport/test/data *.py *.csv *.txt
recursive-include cubicweb/dataimport/test/data-massimport *.py
recursive-include cubicweb/devtools/test/data *.py *.txt *.js *.po.ref
recursive-include cubicweb/entities/test/data *.py
recursive-include cubicweb/etwist/test/data *.py
recursive-include cubicweb/ext/test/data *.py
recursive-include cubicweb/hooks/test/data-computed *.py
recursive-include cubicweb/hooks/test/data *.py
recursive-include cubicweb/sobjects/test/data bootstrap_cubes *.py
recursive-include cubicweb/server/test/data bootstrap_cubes *.py source* *.conf.in *.ldif
recursive-include cubicweb/server/test/data-cwep002 *.py
recursive-include cubicweb/server/test/datacomputed *.py
recursive-include cubicweb/server/test/data-schema2sql toignore
recursive-include cubicweb/server/test/data-migractions bootstrap_cubes *.py
recursive-include cubicweb/server/test/data-schemaserial *.py
include cubicweb/web/test/testutils.js
recursive-include cubicweb/web/test/data bootstrap_cubes pouet.css *.py
recursive-include cubicweb/web/test/data/static/jstests *.js *.html *.json
include cubicweb/web/data/jquery-treeview/*.md
recursive-include cubicweb/skeleton *.py *.css *.js *.po compat *.tmpl rules
prune cubicweb/misc/cwfs