[c-c create] make post-create step optional (closes #2712041)
In this context the "post-create" step refers to the database's creation and
initialization. We want to be able to create a new instance but skip the
database creation (`db-create` and `db-init` commands) in automatic setup.
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.config.sources()[uri]['user-base-dn']
assert olddn != newdn
raw_input("Ensure you've stopped the instance, type enter when done.")
for eid, extid in sql("SELECT eid, extid FROM entities WHERE source='%s'" % uri):
olduserdn = b64decode(extid)
newuserdn = olduserdn.replace(olddn, newdn)
if newuserdn != olduserdn:
print olduserdn, '->', newuserdn
sql("UPDATE entities SET extid='%s' WHERE eid=%s" % (b64encode(newuserdn), eid))
commit()
print 'you can now update the sources file to the new dn and restart the instance'