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defmodule Cfgs do |
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import Enum, only: [map: 2, reject: 2, flat_map: 2, uniq: 1] |
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import List, only: [flatten: 1] |
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import Map, only: [get: 3] |
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import Cfg, only: [config: 1] |
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def load(names) when is_list(names) do |
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names |
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|> expand() |
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|> map(&config/1) |
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end |
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def load(name), do: config(name) |
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def value(key, configs) do |
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configs |
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|> flat_map(&get(&1, key, [])) |
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|> uniq() |
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end |
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defp expand(list) do |
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deps = gather(list) |
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expand(list, deps) |
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end |
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defp gather(list) do |
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list |
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|> map(&deps/1) |
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|> flatten() |
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|> reject(&(&1 in list)) |
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end |
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defp expand(list, []), do: list |
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defp expand(list, deps), do: expand(list ++ deps) |
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defp deps(name) do |
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config(name) |> includes() |
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end |
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defp includes(config) do |
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get(config, :includes, []) |
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end |
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end |