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szaghi / FoBiS

FoBiS.py, Fortran projects Building System for poor people
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FoBiS not detecting changes to source #80

Closed jacobwilliams closed 8 years ago

jacobwilliams commented 9 years ago

I occasionally encounter a bug when making changes to json-fortran, where FoBiS doesn't quite keep up. For example, I just had a situation where I changed the name of a routine, ran FoBiS, and it seems to compile everything again, but I got a linker error that was referencing the old name that wasn't there anymore. Deleting the bin and lib directories didn't help. Checking out a fresh repo and copying the same files over, it worked fine. So, FoBiS was caching something or some information was persisting? Is it saving files somewhere (I couldn't find any)?

szaghi commented 9 years ago

Hi Jacob, This is quite strange. I accont help now, monday I will try to investigate deeply. Can you provide a minimal example raising the bug?

Thank you for the feedback.

szaghi commented 9 years ago

Hi Jacob, I try to replicate the bug, but I am not able to do it.

FoBiS should not cache nothing. It compares the time-stamp of sources with the compiled objects for all the dependencies of each target: if sources and compiled objects are not in sync they will be recompiled (some circumstances trigger to recompile all also, e.g. heritage cflags option that you use).

Please, give me a minimal example or let me know the steps you perform on json-fortran to raise this bug.

Stefano

jacobwilliams commented 9 years ago

Will try to create an example, but it's hard to reproduce.

How does FoBiS save the time stamps and the compile flags? Is that being written to a file somewhere?

szaghi commented 9 years ago

Il you activate cflags heritage the cflags are saved into an hidden file into build dir. The time stamp are not saved are inferred from OS. Il 02/nov/2015 17:52 "Jacob Williams" notifications@github.com ha scritto:

Will try to create an example, but it's hard to reproduce.

How does FoBiS save the time stamps and the compile flags? Is that being written to a file somewhere?

— Reply to this email directly or view it on GitHub https://github.com/szaghi/FoBiS/issues/80#issuecomment-153080998.

szaghi commented 8 years ago

@jacobwilliams Are there some news?

jacobwilliams commented 8 years ago

I'm swamped right now. If you leave the ticket open, I'll try to duplicate it and send you a reproducer. But, I don't know when I'll be able to get to it.

szaghi commented 8 years ago

@jacobwilliams sure, do not worry, take all the time you need.

Thank you for your help.