[petsc-dev] limiting tests to avoid unneeded ones

[Smith, Barry F.]

   Since, for example, changes to code in the TS directory does not effect anything in the Mat directory or SNES directory we only need run tao and ts tests to confirm if the TS change broke anything correct? This would provide an easy way to speed up testing of new branches, right?

   Of am I missing something?

   Barry

Basically the git diff with previous commit before branch started and from this get a list of directories changed, from this determine what levels of TS, etc need to be tested.