akkoma/lib/pleroma/otp_version.ex
Alexander Strizhakov 4c8569d403
otp_version refactor
2020-03-03 12:21:10 +03:00

54 lines
1.3 KiB
Elixir

# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.OTPVersion do
@type check_status() :: :ok | :undefined | {:error, String.t()}
@spec check() :: check_status()
def check do
# OTP Version https://erlang.org/doc/system_principles/versions.html#otp-version
[
Path.join(:code.root_dir(), "OTP_VERSION"),
Path.join([:code.root_dir(), "releases", :erlang.system_info(:otp_release), "OTP_VERSION"])
]
|> get_version_from_files()
|> do_check()
end
@spec check([Path.t()]) :: check_status()
def check(paths) do
paths
|> get_version_from_files()
|> do_check()
end
defp get_version_from_files([]), do: nil
defp get_version_from_files([path | paths]) do
if File.exists?(path) do
File.read!(path)
else
get_version_from_files(paths)
end
end
defp do_check(nil), do: :undefined
defp do_check(version) do
version = String.replace(version, ~r/\r|\n|\s/, "")
[major, minor] =
version
|> String.split(".")
|> Enum.map(&String.to_integer/1)
|> Enum.take(2)
if (major == 22 and minor >= 2) or major > 22 do
:ok
else
{:error, version}
end
end
end