SBT-like features in the Haskell build ecosystem

Question

I\'ve been using Scala with SBT quite a bit lately. The REPL loop of has a handy feature: ~ COMMAND, meaning perform COMMAND for every source file change in the pro

Answer 1

You can get something like this very easily using inotifywait.

Just fire up a terminal in your project directory and run something like this:

$ while inotifywait -qq -r -e modify .; do cabal build && ./dist/build/tests/tests; done

This also works for any other language; just insert the build commands of your choice.