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haskellcabalhaddock

how to use hoogle locally (like ctags)?

I want to use Hoogle locally, so I can run search queries on one of my projects. There's some documentation [ here ], but I can't figure out how to get it to work. It says to run Haddock, but haddock doesn't give any output, only spitting out the warnings copied below. I don't have a projectname.cabal file yet, so I can't use the runhaskell Setup haddock --hoogle command.

haddock coverage for ./Util.hs:     0/8   0%
haddock coverage for ./Blockify.hs:    0/16   0%
haddock coverage for ./Interpreter.hs:     0/9   0%
haddock coverage for AbstractSummarizer.hs:    0/10   0%
Warning: Util: could not find link destinations for:
    GHC.Base.String GHC.Types.IO GHC.ST.ST Data.StateRef.Types.HasRef GHC.Base.Monad Control.Applicative.Applicative GHC.Types.Int Control.Monad.Trans.State.Lazy.State GHC.Bool.Bool GHC.Types.Double GHC.Show.Show Data.Vector.Vector Data.Map.Map System.Process.Internals.CreateProcess
Warning: Blockify: could not find link destinations for:
    GHC.Types.Int GHC.Classes.Eq Data.Data.Data GHC.Classes.Ord GHC.Read.Read GHC.Show.Show Data.Typeable.Typeable GHC.Base.String Data.Typeable.Typeable1 GHC.Num.Num Control.Monad.Trans.State.Lazy.State
Warning: Interpreter: could not find link destinations for:
    Data.StateRef.Types.Ref GHC.Types.Int GHC.Classes.Eq Data.Data.Data GHC.Classes.Ord GHC.Read.Read GHC.Show.Show Data.Typeable.Typeable Data.Typeable.Typeable1 Control.Applicative.Applicative GHC.Base.Monad Data.Map.Map Data.Vector.Vector GHC.Base.Functor Data.Maybe.Maybe
Warning: AbstractSummarizer: could not find link destinations for:
    GHC.Types.Int GHC.Classes.Eq GHC.Show.Show Data.Sequence.Seq GHC.Classes.Ord GHC.Read.Read
Solution

  • Sorry, my fault, the output was in main.txt, I guess I need to clean up my project sometime. This question can be deleted if it's not useful. The solution is:

    PROJECTDIR> haddock --hoogle **/*.hs
PROJECTDIR> mv main.txt PROJNAME.txt
PROJECTDIR> hoogle convert PROJNAME.txt
PROJECTDIR> cp PROJNAME.txt PROJNAME.hoo HOOGLEDB
HOOGLEDB> hoogle combine -o default.hoo $(ls *.hoo | sed '/default/d')

    HOOGLEDB is ~/.cabal/share/hoogle-4.2.5/databases for me. note that only functions with declared type signatures are included in the database.

    cheers. sorry to spam.