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excoveralls
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Coverage report tool for Elixir with coveralls.io integration.
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lib/excoveralls/stop_words.ex
defmodule ExCoveralls.StopWords do
@moduledoc """
Handles stop words for filtering the coverage results.
"""
@doc """
Filters out pre-defined stop words.
"""
def filter(info, words \\ ExCoveralls.Settings.get_stop_words) do
Enum.map(info, fn(x) -> do_filter(x, words) end)
end
defp do_filter([{:name, name}, {:source, source}, {:coverage, coverage}], words) do
lines = String.split(source, "\n")
list = Enum.zip(lines, coverage)
|> Enum.map(fn(x) -> has_valid_line?(x, words) end)
|> List.zip
|> Enum.map(&Tuple.to_list(&1))
[source, coverage] = parse_filter_list(list)
[name: name, source: source, coverage: coverage]
end
defp parse_filter_list([]), do: ["", []]
defp parse_filter_list([lines, coverage]), do: [Enum.join(lines, "\n"), coverage]
defp has_valid_line?({line, coverage}, words) do
if find_stop_words(line, words) == false do
{line, coverage}
else
{line, nil}
end
end
defp find_stop_words(line, words) do
Enum.any?(words, fn(word) -> line =~ word end)
end
end