cabal-doctest

#!/usr/bin/env bash

# cabal-doctest: An external cabal command for running doctests

set -e



# Installs
setup_doctest(){
  echo "Installing doctest executable..."
  GHC_VERSION="$($CABAL exec ghc -v0 -- --numeric-version)"
  $CABAL install doctest --overwrite-policy=always --installdir="$XDG_CACHE_HOME/doctest-$GHC_VERSION"
  export DOCTEST_PATH="$XDG_CACHE_HOME/doctest-$GHC_VERSION/doctest"
}

doctest() {
  setup_doctest
  echo "Initial build..."
  $CABAL build
  echo "Running doctests..."
  $CABAL repl --repl-options='-w -Wdefault' --build-depends=QuickCheck --build-depends=template-haskell --with-compiler="$DOCTEST_PATH" $2
}

usage() {
    cat <<EOF
usage: $0 MODE ...

Modes:
  doctest <component>  Run doctests for the specified component
  doctest-init         Prepare doctest executable for
EOF
}

case "X$1" in
    Xdoctest)
        doctest $2
        ;;

    Xdoctest-init)
        setup_doctest $2
        ;;

    *)
        echo "unknown mode $1"
        usage
esac