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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Mix.Tasks.Pleroma.Common do
   6   @doc "Common functions to be reused in mix tasks"
   7   def start_pleroma do
   8     Application.put_env(:phoenix, :serve_endpoints, false, persistent: true)
   9     {:ok, _} = Application.ensure_all_started(:pleroma)
  10   end
  11
  12   def get_option(options, opt, prompt, defval \\ nil, defname \\ nil) do
  13     Keyword.get(options, opt) || shell_prompt(prompt, defval, defname)
  14   end
  15
  16   def shell_prompt(prompt, defval \\ nil, defname \\ nil) do
  17     prompt_message = "#{prompt} [#{defname || defval}]"
  18
  19     input =
  20       if mix_shell?(),
  21         do: Mix.shell().prompt(prompt_message),
  22         else: :io.get_line(prompt_message)
  23
  24     case input do
  25       "\n" ->
  26         case defval do
  27           nil ->
  28             shell_prompt(prompt, defval, defname)
  29
  30           defval ->
  31             defval
  32         end
  33
  34       input ->
  35         String.trim(input)
  36     end
  37   end
  38
  39   def shell_yes?(message) do
  40     shell_prompt(message, "Yn") in ~w(Yn Y y)
  41   end
  42
  43   def shell_info(message) do
  44     if mix_shell?(),
  45       do: Mix.shell().info(message),
  46       else: IO.puts(message)
  47   end
  48
  49   def shell_error(message) do
  50     if mix_shell?(),
  51       do: Mix.shell().error(message),
  52       else: IO.puts(:stderr, message)
  53   end
  54
  55   @doc "Performs a safe check whether `Mix.shell/0` is available (does not raise if Mix is not loaded)"
  56   def mix_shell?, do: :erlang.function_exported(Mix, :shell, 0)
  57
  58   def escape_sh_path(path) do
  59     ~S(') <> String.replace(path, ~S('), ~S(\')) <> ~S(')
  60   end
  61 end