This is the same as #18 but keeps support for older Elixir versions.

Do you know why does dialyzer fail on this ? The read ahead option seems to be declared in the File.stream_mode type.

Ah ok it's about the order of arguments.

File.stream!(path, 1024, [{:read_ahead, 4096}]) should work.

Edit: well that's what the other PR does.

Ah ok it's about the order of arguments.

that's correct (sorry for taking this long to get back to you, I somehow missed the notification 🙈)

File.stream!(path, 1024, [{:read_ahead, 4096}]) should work.

indeed, that would work as long as you are happy breaking compatibility with older elixir versions (< 1.16). That's the reason behind the Version.compare(System.version(), "1.16.0") expression.

I am not sure why dialyzer is picking that given the if expression is evaluated at compile time and we're using 1.16.2.