291548 - Create a CGI for making manual schema changes

Status: NEW

(Bugzilla :: Bugzilla-General, enhancement, P3)

Description

[Max Kanat-Alexander]

With the addition of Bugzilla::DB::Schema and the bz_schema table, it's
important that the bz_schema table and the real on-disk schema stay the same.

However, sometimes people want to modify the schema locally.

Also, there's a chance that the Schema object could get out-of-sync with the
local database, and then the end-user would need some tool that we could
instruct them to use to fix stuff.

So the tool needs to be able to:

(1) Modify the existing Schema, keeping the on-disk schema in sync with the
Schema object.
(2) Do modifications that *only* modify the disk.
(3) Do modifications that *only* affect the Schema object.

The last two should not be normal functions, but should be accessed only by
users who are instructed to do things by a Bugzilla developer or professional
consultant. They should also be rarely necessary, except in cases of bugs in the
Schema upgrade code.