gen-hie fails to parse cabal.project when it consists only of the field "packages" without a trailing newline.

Suppose that the current directly contains proj, which contains proj.cabal with certain content.

$ ls proj $ ls proj LICENSE app/ proj.cabal 

Then, if we generate cabal.project whose content is "packages: ..." without a trailing newline, gen-hie fails to parse the file.

$ echo -n "packages: proj/*.cabal" > cabal.project $ gen-hie Used cabal No .cabal files found under/Users/kztk/prog/haskell/cabal_package_f You may need to run stack build. 

On the other hand, if the cabal.project has a trailing newline, everything works as expected.

$ echo "packages: proj/*.cabal" > cabal.project $ gen-hie cradle: cabal: - path: "proj/app/Main.hs" component: "proj:exe:proj" 

I confirmed the above issue with implicit-hie 0.1.4.0.

I suspect this issue would be caused by the function field called by extractPkgs in src/Hie/Cabal/Parser.hs, which requires the newline in the end by calling skipToNextLine.