[ET Trac] [Einstein Toolkit] #561: Use subdirectories when generating Formaline tarballs

[Einstein Toolkit]

#561: Use subdirectories when generating Formaline tarballs
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 Reporter:  eschnett               |       Owner:     
     Type:  enhancement            |      Status:  new
 Priority:  minor                  |   Milestone:     
Component:  EinsteinToolkit thorn  |     Version:     
 Keywords:                         |  
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 When there are many thorn, the directory used to generate the
 Formaline tarballs can contain many files, likely reducing I/O
 performance. This patch uses a subdirectory for each thorn, which
 improves the directory layout and should also improve performance.

 This patch also adds all thorns to the git repository at once, instead
 of using a single make rule for each thorn. Since git repositories
 cannot be accessed for writing in parallel, using multiple make rules
 leads to long wait times for the git repository lock, which is avoided
 if one explicitly serialises this.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/561>
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