[petsc-dev] Fwd: [petsc-maint #119133] petsc-dev configure crash

Barry Smith bsmith at mcs.anl.gov
Wed Jun 6 15:33:31 CDT 2012

On Jun 6, 2012, at 3:05 PM, Sean Farley wrote:

>> If the only issue is being able to get the BuildSystem revision associated
>> with a pets-dev revision,
>> How about adding a hook to BuildSystem that at each commit, writes the
>> number of the revision into a file in the pets-dev repository and does a
>> commit in the pets-dev repository? Then all that would be done is
>> cd $PETSC_DIR
>> hg up -r <petsc revision>
>> cd config/BuildSystem
>> hg up -r `cat $PETSC_DIR/BuildSystemVersion.txt`
>> Which I am sure can be done automatically with a hook.
>> It's not high tech, but it would work, right? Plus this could be done a
>> posteriori for all past revisions of BuildSystem.
> Actually, mercurial already implements this. They just call it 'subrepos'.

   Yes, but you conveniently forget all the bad sides of subrepos. See Satish and Matt's old mails.


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