1 files changed, 43 insertions, 11 deletions
diff --git a/lib/mix/tasks/pleroma/common.ex b/lib/mix/tasks/pleroma/common.ex
index 25977f656..0e03a7872 100644
--- a/lib/mix/tasks/pleroma/common.ex
+++ b/lib/mix/tasks/pleroma/common.ex
@@ -10,19 +10,51 @@ defmodule Mix.Tasks.Pleroma.Common do
   end
 
   def get_option(options, opt, prompt, defval \\ nil, defname \\ nil) do
-    Keyword.get(options, opt) ||
-      case Mix.shell().prompt("#{prompt} [#{defname || defval}]") do
-        "\n" ->
-          case defval do
-            nil -> get_option(options, opt, prompt, defval)
-            defval -> defval
-          end
-
-        opt ->
-          opt |> String.trim()
-      end
+    Keyword.get(options, opt) || shell_prompt(prompt, defval, defname)
   end
 
+  def shell_prompt(prompt, defval \\ nil, defname \\ nil) do
+    prompt_message = "#{prompt} [#{defname || defval}]"
+
+    input =
+      if mix_shell?(),
+        do: Mix.shell().prompt(prompt_message),
+        else: :io.get_line(prompt_message)
+
+    case input do
+      "\n" ->
+        case defval do
+          nil ->
+            shell_prompt(prompt, defval, defname)
+
+          defval ->
+            defval
+        end
+
+      input ->
+        String.trim(input)
+    end
+  end
+
+  def shell_yes?(message) do
+    shell_prompt(message, "Yn") in ~w(Yn Y y)
+  end
+
+  def shell_info(message) do
+    if mix_shell?(),
+      do: Mix.shell().info(message),
+      else: IO.puts(message)
+  end
+
+  def shell_error(message) do
+    if mix_shell?(),
+      do: Mix.shell().error(message),
+      else: IO.puts(:stderr, message)
+  end
+
+  @doc "Performs a safe check whether `Mix.shell/0` is available (does not raise if Mix is not loaded)"
+  def mix_shell?, do: :erlang.function_exported(Mix, :shell, 0)
+
   def escape_sh_path(path) do
     ~S(') <> String.replace(path, ~S('), ~S(\')) <> ~S(')
   end