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redix
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Fast, pipelined, resilient Redis driver for Elixir.
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lib/redix/uri.ex
defmodule Redix.URI do
@moduledoc false
defmodule URIError do
@moduledoc """
Error in parsing a Redis URI or error in the content of the URI.
"""
defexception [:message]
end
@spec opts_from_uri(binary) :: Keyword.t
def opts_from_uri(uri) when is_binary(uri) do
%URI{host: host, port: port, scheme: scheme} = uri = URI.parse(uri)
unless scheme == "redis" do
raise URIError, message: "expected scheme to be redis://, got: #{scheme}://"
end
reject_nils([
host: host,
port: port,
password: password(uri),
database: database(uri),
])
end
defp password(%URI{userinfo: nil}) do
nil
end
defp password(%URI{userinfo: userinfo}) do
[_user, password] = String.split(userinfo, ":", parts: 2)
password
end
defp database(%URI{path: nil}), do: nil
defp database(%URI{path: "/"}), do: nil
defp database(%URI{path: "/" <> db}), do: String.to_integer(db)
defp reject_nils(opts) when is_list(opts) do
Enum.reject(opts, &match?({_, nil}, &1))
end
end