added generated pleroma.env

lib/mix/tasks/pleroma/release_env.ex

@@ -0,0 +1,64 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Mix.Tasks.Pleroma.ReleaseEnv do
+  use Mix.Task
+  import Mix.Pleroma
+
+  @shortdoc "Generate Pleroma environment file."
+  @moduledoc File.read!("docs/administration/CLI_tasks/release_environments.md")
+
+  def run(["gen" | rest]) do
+    {options, [], []} =
+      OptionParser.parse(
+        rest,
+        strict: [
+          force: :boolean,
+          path: :string
+        ],
+        aliases: [
+          p: :path,
+          f: :force
+        ]
+      )
+
+    env_path =
+      get_option(
+        options,
+        :path,
+        "Environment file path",
+        "config/pleroma.env"
+      )
+      |> Path.expand()
+
+    proceed? =
+      if File.exists?(env_path) do
+        get_option(
+          options,
+          :force,
+          "Environment file is exist. Do you want overwritten the #{env_path} file? (y/n)",
+          "n"
+        ) === "y"
+      else
+        true
+      end
+
+    if proceed? do
+      do_generate(env_path)
+
+      shell_info(
+        "The file generated: #{env_path}.\nTo use the enviroment file need to add the line ';EnvironmentFile=#{
+          env_path
+        }' in service file (/installation/pleroma.service)."
+      )
+    end
+  end
+
+  def do_generate(path) do
+    content = "RELEASE_COOKIE=#{Base.encode32(:crypto.strong_rand_bytes(32))}"
+
+    File.mkdir_p!(Path.dirname(path))
+    File.write!(path, content)
+  end
+end