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Jeweller-Tsai/elixir_tail.exs

Last active June 18, 2016 04:06
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elixir_tail.exs
defmodule ElixirTail do
def tail path do
Stream.resource(fn -> File.open!(path) end,
fn file ->
case IO.read(file, :line) do
:eof ->
:timer.sleep 10
{[], file}
data ->
IO.write data
{[data], file}
end
end,
fn file -> File.close(file) end)
|> Stream.run
end
end
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A rust version

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