Wrapper for ghc with haskellmode & cabal-dev

haskellmode-cabal-dev-ghc.zsh

#!/usr/local/bin/zsh

if [[ -d ./cabal-dev ]]; then
  ignoreflags=('-O.*' --make -debug -threaded -ticky '.*\.hs' -prof)
  ignorere="/^(${(j'|')ignoreflags})\$/"

  argflags=(-package-name -package-conf -odir -hidir -stubdir -package-id)
  argre="/^(${(j'|')argflags})\$/"

  output=`cabal-dev buildopts` || exit 1
  args=$(print $output | \
         sed '/End/q' | \
         sed '/^-o$/,/./d' | \
         sed -E "$argre { N; s/\\n/ /; }" | \
         sed -E '/^[^-]/d' | \
         sed -E "1d; \$d; ${ignorere}d;")

  #print -- $args
  ghc ${(f)args} $@
else
  ghc $@
fi