This repository contains an example of haskell-language-server being sensitive to symbolic links in flags produced by hie-bios.

In this example ,haskell-language-server is setup using the hie-bios script which outputs the following flags:

  -isubdir_alias
  Main.hs
  subdir/Lib.hs

where subdir_alias is a symbolic link to subdir.

Running the following command:

haskell-language-server-wrapper Main.hs

fails with error:

Message:  Variable not in scope: val

whereas using either subdir or subdir_alias in both places works fine.

(running ghci $(./hie-bios | tr '\n' ' ') as indicated in hie-bios documentation also seems to work fine)

Versions:

This behavior seems present since haskell-language-server version 1.6 as the following commands fail:

nix-shell shell_1_9_0_0.nix --run "haskell-language-server-wrapper Main.hs"
nix-shell shell_1_6_1_1.nix --run "haskell-language-server-wrapper Main.hs"

While this one succeeds:

nix-shell shell_1_5_0_1.nix --run "haskell-language-server-wrapper Main.hs"