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I would like dune utop or another OCaml top-level to pick up changes I do to my code while it is running. It seems as if dune utop --watch was designed to do that. Is that true? How do I make use of it?

In my experiments dune utop --watch ignored changes I saved to my module source code. Executing variations of dune build command didn't seem to help either.

Although apparently incompatible with dune I also tried #use and #mod_use directives without any luck: utop still didn't seem to pick up my code changes until restarted.

SecretAgentMan
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Space Cadet
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1 Answers1

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Hmm.. seems (once you have installed inotifywait) dune build --watch really starts working but dune utop --watch still does not pick up changes saved to source files..

--watch option is accepted as valid in dune utop --watch and dune utop --help does advertise it as supported but it seems this is just a bug in dune and dune utop --watch actually behaves exactly in the same way as simply dune utop.

It would have been a very nice option but apparently it is just not supported and might be impossible to support...

Space Cadet
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