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knupfer / haskell-emacs

Write Emacs extensions in Haskell
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Avoid recompilation if nothing has changed in /haskell-fun #63

Closed jonschoning closed 5 years ago

jonschoning commented 7 years ago

haskell-emacs-init seems to take a full 20 seconds each time it is invoked, even if nothing in ~/.emacs-d/haskell-fun has changed. Manually invoking stack install in ~/.emacs-d/haskell-fun is nearly instantateous, but haskell-emacs-init takes ~20 seconds each time.

Can this delay be shortened to the same time that manually invoking stack install would take?

This would allow one to have haskell-emacs start in the emacs startup init script (invoking haskell-emacs-init) very easily.

knupfer commented 7 years ago

Thanks for reporting! I think I know the reason for that, at the moment it calls on init unconditionally stack setup && stack install, so it seems that stack setup is eating the time here.

I'll try it tomorrow with stack.