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36 lines
1.1 KiB
Elixir
36 lines
1.1 KiB
Elixir
defmodule LivebookWeb.FileSystemProvider do
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# Configurable implementation of `LivebookWeb.StaticPlug.Provider` behaviour,
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# that loads files directly from the file system.
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#
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# ## `use` options
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#
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# * `:from` (**required**) - where to read the static files from. See `Plug.Static` for more details.
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defmacro __using__(opts) do
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quote bind_quoted: [opts: opts] do
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@behaviour LivebookWeb.StaticPlug.Provider
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from = Keyword.fetch!(opts, :from)
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static_path = LivebookWeb.StaticPlug.Provider.static_path(from)
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@impl true
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def get_file(segments, compression) do
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LivebookWeb.FileSystemProvider.__get_file__(unquote(static_path), segments, compression)
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end
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end
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end
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def __get_file__(static_path, segments, nil) do
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abs_path = Path.join([static_path | segments])
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if File.regular?(abs_path) do
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content = File.read!(abs_path)
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digest = content |> :erlang.md5() |> Base.encode16(case: :lower)
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%LivebookWeb.StaticPlug.File{content: content, digest: digest}
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else
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nil
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end
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end
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def __get_file__(_static_path, _segments, _compression), do: nil
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end
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