77 lines
1.7 KiB
Elixir
77 lines
1.7 KiB
Elixir
defmodule Display do
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alias IO.ANSI
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@current_dir File.cwd!
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def show_failure(failure, module, name) do
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clear_screen()
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IO.puts("Now meditate upon #{format_module(module)}")
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IO.puts("---------------------------------------")
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IO.puts(name)
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IO.puts(format_failure(failure))
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end
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def show_compile_error(error) do
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IO.puts("")
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format_error(error) |> IO.puts
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end
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def considering(module) do
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IO.puts("Considering #{format_module(module)}...")
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end
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def clear_screen() do
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if Options.clear_screen? do
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IO.puts(ANSI.clear)
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IO.puts(ANSI.home)
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end
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end
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defp format_failure(%ExUnit.AssertionError{expr: expr}) do
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"""
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#{format_cyan("Assertion failed in #{last_failure_location}")}
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#{format_red(Macro.to_string(expr))}
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"""
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end
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defp format_failure(error) do
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"""
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#{format_cyan("Error in #{last_failure_location}")}
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#{format_error(error)}
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"""
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end
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defp last_failure_location do
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{file, line} = System.stacktrace
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|> Enum.drop_while(&in_ex_unit?/1)
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|> List.first
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|> extract_file_and_line
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"#{file}:#{line}"
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end
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defp in_ex_unit?({ExUnit.Assertions, _, _, _}), do: true
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defp in_ex_unit?(_), do: false
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defp extract_file_and_line({_, _, _, [file: file, line: line]}) do
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{file, line}
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end
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defp format_error(error) do
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trace = System.stacktrace |> Enum.take(2)
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format_red(Exception.format(:error, error, trace))
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end
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defp format_red(str) do
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Enum.join([ANSI.red, str, ANSI.reset], "")
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end
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defp format_cyan(str) do
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Enum.join([ANSI.cyan, str, ANSI.reset], "")
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end
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defp format_module(module) do
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Module.split(module) |> List.last
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end
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end
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