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Static site generator for elixir
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lib/tableau/index_html.ex
defmodule Tableau.IndexHtml do
@moduledoc false
@behaviour Plug
@doc ~S"""
Initialize plug options
- at: The request path to reach for static assets, defaults to "/"
- default_file: Filename to serve when request path is a directory, defaults to "index.html"
## Example
iex> Plug.Static.IndexHtml.init(at: "/doc")
[matcher: ~r|^/doc/(.*/)?$|, default_file: "index.html"]
"""
def init(opts), do: Keyword.merge([default_file: "index.html"], opts)
@doc """
Invokes the plug, adding default_file to request_path and path_info for directory paths
## Example
iex> opts = Plug.Static.IndexHtml.init(at: "/doc")
iex> conn = %Plug.Conn{request_path: "/doc/a/", path_info: ["doc", "a"]}
iex> Plug.Static.IndexHtml.call(conn, opts) |> Map.take([:request_path, :path_info])
%{path_info: ["doc", "a", "index.html"], request_path: "/doc/a/index.html"}
"""
def call(conn, default_file: filename) do
case Path.extname(conn.request_path) do
"" ->
%{
conn
| request_path: String.replace_suffix(conn.request_path, "/", "") <> "/#{filename}",
path_info: conn.path_info ++ [filename]
}
_ ->
conn
end
end
end