function envsource
  if not set -q argv[1]
    set argv[1] ".env"
  end

  echo "Using $argv[1] as input file"

  for line in (grep -v '^\s*\(#\|$\)' $argv[1] | grep -E '^[A-Za-z_]+=[^#\n]+')
    set item (string split -m 1 '=' $line)
    set -gx $item[1] $item[2]
    echo "Exported key $item[1]"
  end
end