#! /usr/bin/env sh

if [ "$1" = "--rcfile" ]; then
  # This means the shell should stay open after executing. So we remove the last line which contains 'exit'
  shift
  tmp="$(cat $1)"
  echo ${tmp%exit} > $1
  cat >> $1 <<EOF
SHELL=$NIX_EXECUTING_SHELL
unset NIX_BUILD_SHELL
FPATH=\$(echo 'echo \$FPATH' | $NIX_EXECUTING_SHELL --stdin)
for path in \${PATH//:/ }; do
  if [[ \$path = /nix/store/* ]]; then
    path=\${path/%bin/share\/zsh\/site-functions}
    if [ -d "\$path" ]; then
      FPATH="\$path:\$FPATH"
    fi
  fi
done
FPATH=\$FPATH $NIX_EXECUTING_SHELL
EOF
  /usr/bin/env bash $1
else
  /usr/bin/env bash "$@"
fi