#!/bin/bash
# Computes the flags for ghcide to pass to ghci. You probably won’t be running this yourself, but rather ghcide will via configuration in hie.yaml.

set -e

cd $(dirname "$0")/..

root="$(pwd)"
ghc_version="$(ghc --numeric-version)"

output_file="${HIE_BIOS_OUTPUT:-/dev/stdout}"

if [ "$1" == "--builddir" ]; then
  repl_builddir="$2"
  shift 2
else
  repl_builddir=dist-newstyle
fi

function flags {
  echo "-O0"
  echo "-ignore-dot-ghci"

  echo "-outputdir $repl_builddir/build/x86_64-osx/ghc-$ghc_version/build"
  echo "-odir $repl_builddir/build/x86_64-osx/ghc-$ghc_version/build"
  echo "-hidir $repl_builddir/build/x86_64-osx/ghc-$ghc_version/build"
  echo "-stubdir $repl_builddir/build/x86_64-osx/ghc-$ghc_version/build"

  echo "-i$root/$repl_builddir/build/x86_64-osx/ghc-$ghc_version/build/autogen"

  echo "-I$root/$repl_builddir/build/x86_64-osx/ghc-$ghc_version/build/autogen"

  echo "-i$root/semantic-analysis/src"
  echo "-i$root/semantic-ast/src"
  echo "-i$root/semantic-core/src"
  echo "-i$root/semantic-java/src"
  echo "-i$root/semantic-json/src"
  echo "-i$root/semantic-python/src"
  echo "-i$root/semantic-tags/src"
  echo "-i$root/app"
  echo "-i$root/src"
  echo "-i$root/bench"
  echo "-i$root/test"

  echo "-optP-include"
  echo "-optP$root/$repl_builddir/build/x86_64-osx/ghc-$ghc_version/build/autogen/cabal_macros.h"

  echo "-hide-all-packages"

  # Emit package flags from the environment file, removing comments & prefixing with -
  cabal v2-exec --builddir="$repl_builddir" -v0 bash -- -c 'cat $GHC_ENVIRONMENT' | grep -v '^--' | sed -e 's/^/-/'

  echo "-XHaskell2010"
  echo "-XStrictData"

  echo "-Wwarn"

  echo "-Weverything"
  echo "-Wno-all-missed-specialisations"
  echo "-Wno-implicit-prelude"
  echo "-Wno-missed-specialisations"
  echo "-Wno-missing-import-lists"
  echo "-Wno-missing-local-signatures"
  echo "-Wno-monomorphism-restriction"
  echo "-Wno-name-shadowing"
  echo "-Wno-safe"
  echo "-Wno-unsafe"
  echo "-Wno-star-is-type"
  echo "-Wno-missing-deriving-strategies"
}

flags > "$output_file"