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log_reset
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0.1.0
Resets configured log files.
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lib/log/reset.ex
defmodule Log.Reset do
@moduledoc """
Creates and clears configured log files.
"""
require Logger
@doc """
Creates and clears a log file.
"""
@spec clear_log(Path.t() | nil) :: :ok
def clear_log(nil), do: :ok
def clear_log(log_path) do
log_path = Path.expand(log_path) |> IO.inspect(label: "log_path")
dir_path = Path.dirname(log_path)
create_dir(dir_path)
case File.write(log_path, "") do
:ok ->
IO.puts("*** Cleared log file ***")
info("Cleared log file", log_path)
{:error, reason} ->
IO.puts("*** Couldn't clear log file ***")
error(reason, "Couldn't clear log file", log_path)
end
end
@doc """
Lists all configured log paths.
"""
@spec log_paths :: [Path.t() | nil]
def log_paths do
:logger
|> :application.get_env(:backends, [])
|> Enum.map(fn
{LoggerFileBackend, id} -> :application.get_env(:logger, id, nil)[:path]
_console? -> nil
end)
|> IO.inspect(label: "log paths inside log_paths/0")
end
## Private functions
@spec create_dir(Path.t()) :: :ok
defp create_dir(dir_path) do
case File.mkdir_p(dir_path) do
:ok -> :ok
{:error, reason} -> error(reason, "Couldn't create directory", dir_path)
end
end
@spec info(String.t(), Path.t()) :: :ok
defp info(msg, path) do
Logger.info("""
\n#{msg}:
#{inspect(path)}
""")
end
@spec error(File.posix(), String.t(), Path.t()) :: :ok
defp error(reason, msg, path) do
Logger.error("""
\n#{msg}:
#{inspect(path)}
#{:file.format_error(reason)}
""")
end
end