#!/bin/sh -eux

# DESCRIPTION: remove all installed GHC/cabal packages,
# leaving ~/.cabal binaries and docs in place.
# When all else fails, use this to get out of dependency hell and start over.
read -p 'erasing all your user ghc and cabal packages - are you sure (y/n) ? ' ans
test x$ans == xy && ( \
	echo 'erasing directories under ~/.ghc'; rm -rf `find ~/.ghc -maxdepth 1 -type d`; \
	echo 'erasing ~/.cabal/lib'; rm -rf ~/.cabal/lib; \
	# echo 'erasing ~/.cabal/packages'; rm -rf ~/.cabal/packages; \
	# echo 'erasing ~/.cabal/share'; rm -rf ~/.cabal/share; \
 )