[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
from __future__ import print_function
from base64 import b64decode, b64encode
try:
uri, newdn = __args__
except ValueError:
print('USAGE: cubicweb-ctl shell <instance> ldap_change_base_dn.py -- <ldap source uri> <new dn>')
print()
print('you should not have updated your sources file yet')
olddn = repo.sources_by_uri[uri].config['user-base-dn']
assert olddn != newdn
raw_input("Ensure you've stopped the instance, type enter when done.")
for eid, olduserdn in rql("Any X, XURI WHERE X cwuri XURI, X cw_source S, S name %(name)s",
{'name': uri}):
newuserdn = olduserdn.replace(olddn, newdn)
if newuserdn != olduserdn:
print(olduserdn, '->', newuserdn)
sql("UPDATE cw_cwuser SET cw_cwuri='%s' WHERE cw_eid=%s" % (newuserdn, eid))
commit()
print('you can now update the sources file to the new dn and restart the instance')