> On Jun 17, 2019, at 10:23 AM, Eric Eide <ee...@cs.utah.edu> wrote:
> Communicate with users.  I want to put the appropriate git hash into the 
> output
> of my program (Xsmith-based random program generators) so that I can attempt 
> to
> reproduce the output, if necessary.

Once upon a time I tried to do the same for Pollen and couldn't sort it out. 
AFAICT the git hash isn't generated until the commit is made. Instead, I ended 
up adding a git push hook that writes a timestamp into a "ts.rktd" file as part 
of the commit. Then when Pollen is installed, that timestamp can be baked into 
the version number as a "build number". [1] So it is not the git hash, but it 
still identifies a particular commit. I'm sure this offends common decency, but 
it has indeed been useful for pinpointing user problems.

[1] https://docs.racket-lang.org/pollen/version-notes.html 

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