[ET Trac] [Einstein Toolkit] #919: simfactory fails for standard thornlist copied using sync

[Einstein Toolkit]

#919: simfactory fails for standard thornlist copied using sync
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  Reporter:  knarf   |       Owner:  eschnett  
      Type:  defect  |      Status:  review    
  Priority:  major   |   Milestone:  ET_2012_05
 Component:  Other   |     Version:            
Resolution:          |    Keywords:            
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Comment (by knarf):

 I think we are mixing issues now. The @..@ pairs were used in option
 lists. I think they were never used in thornlists so far. This issue is
 about _using_ simfactory in a way that I believe was envisioned as being
 one of the even recommended ways of using it - simply because it's the
 most convenient way to make sure to use exactly the same source
 everywhere.

 One way to deal with _this_ issue is to teach GetComponents about thorns
 which should be downloaded, but not used by Cactus (unless simfactory
 changes that). There is currently a way to mark components as such, which
 is fine for things like documentation components, but not really
 convenient for simfactory to parse (although it could be done).

 We could decide to use this mechanism and teach simfactory to look for
 'disabled' thorns there, or teach GetComponents about another way to mark
 components as 'to be downloaded, but not used by Cactus' which simfactory
 then also needs to learn about in order to be able to enable certain
 thorns.
 In both cases, GetComponents would download _all_ components (unlike now),
 but Cactus would (using simfactory) not necessarily build all components.
 Not using simfactory would also still work, but would result in possibly
 less components than might work on a particular machine.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/919#comment:9>
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