On Fri, May 26, 2006 at 19:39:00 +0200, Juliusz Chroboczek wrote: > hasSSHControlMaster :: Bool > hasSSHControlMaster = unsafePerformIO hasSSHControlMasterIO > > and use the latter in the low-level function that uses ssh. Since > Darcs is lazy, it will be evaluated just once.
Ok, Haskell has just become disturbingly cool in my eyes :-). My hestitation was not so much an objection to the idea, but me not knowing how to execute it, that is, me not grasping the interesting consequences of lazy+unsafe. Now that I understand how that works, I'll give it a shot. If only there was some way to know how to kill off all the control masters at the end, (i.e. knowing which control masters we ran) we could even completely get rid of the code in DarcsCommands has make it completely transparent. Any ideas? -- Eric Kow http://www.loria.fr/~kow PGP Key ID: 08AC04F9 Merci de corriger mon français.
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