[tahoe-lafs-trac-stream] [Tahoe-LAFS] #2809: Should be an error to put in unknown config items

[Tahoe-LAFS]

#2809: Should be an error to put in unknown config items
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     Reporter:  meejah          |      Owner:
         Type:  defect          |     Status:  new
     Priority:  normal          |  Milestone:  soon
    Component:  code-nodeadmin  |    Version:  1.11.0
   Resolution:                  |   Keywords:
Launchpad Bug:                  |
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Changes (by warner):

 * component:  code-frontend => code-nodeadmin
 * milestone:  undecided => soon


Comment:

 Oh, great idea! Let's add this to client.py, maybe as
 `Client.validate_config()`. We need something to enumerate all sections
 and all keys (but I think the `ConfigParser` can do this). We can put a
 big string in client.py with a list of all `SECTION KEY` strings that are
 legal, splitlines on it, turn it into a set, then `validate_config()` just
 checks every line and throw a !ValueError (with the line number) if it
 seens something that isn't on the list.

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2809#comment:1>
Tahoe-LAFS <https://Tahoe-LAFS.org>
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