From 56e9bf33932bacfdffd700b97e3117fc593cac11 Mon Sep 17 00:00:00 2001 From: Roman Chvanikov Date: Tue, 4 Aug 2020 14:35:47 +0300 Subject: [PATCH 1/4] Unify Config.get behaviour for atom/list key param --- lib/pleroma/config.ex | 34 +++++++++++++++++++++++++++------- test/config_test.exs | 28 ++++++++++++++++++++++++++++ test/support/helpers.ex | 14 ++++++++++++-- 3 files changed, 67 insertions(+), 9 deletions(-) diff --git a/lib/pleroma/config.ex b/lib/pleroma/config.ex index cc80deff5..88d1972ba 100644 --- a/lib/pleroma/config.ex +++ b/lib/pleroma/config.ex @@ -11,13 +11,33 @@ defmodule Pleroma.Config do def get([key], default), do: get(key, default) - def get([parent_key | keys], default) do - case :pleroma - |> Application.get_env(parent_key) - |> get_in(keys) do - nil -> default - any -> any - end + def get([root_key | keys], default) do + # This is to mimic Application.get_env/3 behaviour that returns `nil` if the + # actual value is `nil`. + Enum.reduce_while(keys, Application.get_env(:pleroma, root_key), fn key, config -> + case key do + [last_key] when is_map(config) -> + {:halt, Map.get(config, last_key, default)} + + [last_key] when is_list(config) -> + {:halt, Keyword.get(config, last_key, default)} + + _ -> + case config do + %{^key => value} -> + {:cont, value} + + [_ | _] -> + case :lists.keyfind(key, 1, config) do + {_, value} -> {:cont, value} + _ -> {:halt, default} + end + + _ -> + {:halt, default} + end + end + end) end def get(key, default) do diff --git a/test/config_test.exs b/test/config_test.exs index a46ab4302..3f3da06d0 100644 --- a/test/config_test.exs +++ b/test/config_test.exs @@ -28,6 +28,34 @@ defmodule Pleroma.ConfigTest do assert Pleroma.Config.get([:azerty, :uiop], true) == true end + describe "nil values" do + setup do + Pleroma.Config.put(:lorem, nil) + Pleroma.Config.put(:ipsum, %{dolor: [sit: nil]}) + Pleroma.Config.put(:dolor, sit: %{amet: nil}) + + on_exit(fn -> Enum.each(~w(lorem ipsum dolor)a, &Pleroma.Config.delete/1) end) + end + + test "get/1 with an atom for nil value" do + assert Pleroma.Config.get(:lorem) == nil + end + + test "get/2 with an atom for nil value" do + assert Pleroma.Config.get(:lorem, true) == nil + end + + test "get/1 with a list of keys for nil value" do + assert Pleroma.Config.get([:ipsum, :dolor, :sit]) == nil + assert Pleroma.Config.get([:dolor, :sit, :amet]) == nil + end + + test "get/2 with a list of keys for nil value" do + assert Pleroma.Config.get([:ipsum, :dolor, :sit], true) == nil + assert Pleroma.Config.get([:dolor, :sit, :amet], true) == nil + end + end + test "get/1 when value is false" do Pleroma.Config.put([:instance, :false_test], false) Pleroma.Config.put([:instance, :nested], []) diff --git a/test/support/helpers.ex b/test/support/helpers.ex index 5cbf2e291..7d729541d 100644 --- a/test/support/helpers.ex +++ b/test/support/helpers.ex @@ -17,9 +17,19 @@ defmodule Pleroma.Tests.Helpers do defmacro clear_config(config_path, do: yield) do quote do - initial_setting = Config.get(unquote(config_path)) + initial_setting = Config.get(unquote(config_path), :__clear_config_absent__) unquote(yield) - on_exit(fn -> Config.put(unquote(config_path), initial_setting) end) + + on_exit(fn -> + case initial_setting do + :__clear_config_absent__ -> + Config.delete(unquote(config_path)) + + _ -> + Config.put(unquote(config_path), initial_setting) + end + end) + :ok end end From 6f60ac9f41d9511afa71986f000a2fc6c637b0c5 Mon Sep 17 00:00:00 2001 From: Roman Chvanikov Date: Wed, 5 Aug 2020 13:00:49 +0300 Subject: [PATCH 2/4] Refactor config --- lib/pleroma/config.ex | 61 ++++++++++++++++------------------ test/application_requirements_test.exs | 5 ++- test/config_test.exs | 16 +++++++++ 3 files changed, 49 insertions(+), 33 deletions(-) diff --git a/lib/pleroma/config.ex b/lib/pleroma/config.ex index 88d1972ba..98099ca58 100644 --- a/lib/pleroma/config.ex +++ b/lib/pleroma/config.ex @@ -11,33 +11,11 @@ defmodule Pleroma.Config do def get([key], default), do: get(key, default) - def get([root_key | keys], default) do - # This is to mimic Application.get_env/3 behaviour that returns `nil` if the - # actual value is `nil`. - Enum.reduce_while(keys, Application.get_env(:pleroma, root_key), fn key, config -> - case key do - [last_key] when is_map(config) -> - {:halt, Map.get(config, last_key, default)} - - [last_key] when is_list(config) -> - {:halt, Keyword.get(config, last_key, default)} - - _ -> - case config do - %{^key => value} -> - {:cont, value} - - [_ | _] -> - case :lists.keyfind(key, 1, config) do - {_, value} -> {:cont, value} - _ -> {:halt, default} - end - - _ -> - {:halt, default} - end - end - end) + def get([_ | _] = path, default) do + case fetch(path) do + {:ok, value} -> value + :error -> default + end end def get(key, default) do @@ -54,6 +32,22 @@ defmodule Pleroma.Config do end end + def fetch([root_key | keys]) do + Enum.reduce_while(keys, Application.fetch_env(:pleroma, root_key), fn + key, {:ok, config} when is_map(config) or is_list(config) -> + case Access.fetch(config, key) do + :error -> + {:halt, :error} + + value -> + {:cont, value} + end + + _key, _config -> + {:halt, :error} + end) + end + def put([key], value), do: put(key, value) def put([parent_key | keys], value) do @@ -70,12 +64,15 @@ defmodule Pleroma.Config do def delete([key]), do: delete(key) - def delete([parent_key | keys]) do - {_, parent} = - Application.get_env(:pleroma, parent_key) - |> get_and_update_in(keys, fn _ -> :pop end) + def delete([parent_key | keys] = path) do + with {:ok, _} <- fetch(path) do + {_, parent} = + parent_key + |> get() + |> get_and_update_in(keys, fn _ -> :pop end) - Application.put_env(:pleroma, parent_key, parent) + Application.put_env(:pleroma, parent_key, parent) + end end def delete(key) do diff --git a/test/application_requirements_test.exs b/test/application_requirements_test.exs index 21d24ddd0..e96295955 100644 --- a/test/application_requirements_test.exs +++ b/test/application_requirements_test.exs @@ -127,7 +127,10 @@ defmodule Pleroma.ApplicationRequirementsTest do :ok end - setup do: clear_config([:i_am_aware_this_may_cause_data_loss, :disable_migration_check]) + setup do + Pleroma.Config.get(:i_am_aware_this_may_cause_data_loss, 42) |> IO.inspect() + clear_config([:i_am_aware_this_may_cause_data_loss, :disable_migration_check]) + end test "raises if it detects unapplied migrations" do assert_raise Pleroma.ApplicationRequirements.VerifyError, diff --git a/test/config_test.exs b/test/config_test.exs index 3f3da06d0..e2c18304e 100644 --- a/test/config_test.exs +++ b/test/config_test.exs @@ -117,5 +117,21 @@ defmodule Pleroma.ConfigTest do Pleroma.Config.put([:delete_me, :delete_me], hello: "world", world: "Hello") Pleroma.Config.delete([:delete_me, :delete_me, :world]) assert Pleroma.Config.get([:delete_me, :delete_me]) == [hello: "world"] + + assert Pleroma.Config.delete([:this_key_does_not_exist]) + assert Pleroma.Config.delete([:non, :existing, :key]) + end + + test "fetch/1" do + Pleroma.Config.put([:lorem], :ipsum) + Pleroma.Config.put([:ipsum], dolor: :sit) + + assert Pleroma.Config.fetch([:lorem]) == {:ok, :ipsum} + assert Pleroma.Config.fetch([:ipsum, :dolor]) == {:ok, :sit} + assert Pleroma.Config.fetch([:lorem, :ipsum]) == :error + assert Pleroma.Config.fetch([:loremipsum]) == :error + + Pleroma.Config.delete([:lorem]) + Pleroma.Config.delete([:ipsum]) end end From 97b57014496003cabb416766457552ef854fa658 Mon Sep 17 00:00:00 2001 From: Roman Chvanikov Date: Wed, 5 Aug 2020 17:46:14 +0300 Subject: [PATCH 3/4] Update clear_config macro --- test/application_requirements_test.exs | 5 +---- test/support/helpers.ex | 8 ++++---- 2 files changed, 5 insertions(+), 8 deletions(-) diff --git a/test/application_requirements_test.exs b/test/application_requirements_test.exs index e96295955..21d24ddd0 100644 --- a/test/application_requirements_test.exs +++ b/test/application_requirements_test.exs @@ -127,10 +127,7 @@ defmodule Pleroma.ApplicationRequirementsTest do :ok end - setup do - Pleroma.Config.get(:i_am_aware_this_may_cause_data_loss, 42) |> IO.inspect() - clear_config([:i_am_aware_this_may_cause_data_loss, :disable_migration_check]) - end + setup do: clear_config([:i_am_aware_this_may_cause_data_loss, :disable_migration_check]) test "raises if it detects unapplied migrations" do assert_raise Pleroma.ApplicationRequirements.VerifyError, diff --git a/test/support/helpers.ex b/test/support/helpers.ex index 7d729541d..ecd4b1e18 100644 --- a/test/support/helpers.ex +++ b/test/support/helpers.ex @@ -17,16 +17,16 @@ defmodule Pleroma.Tests.Helpers do defmacro clear_config(config_path, do: yield) do quote do - initial_setting = Config.get(unquote(config_path), :__clear_config_absent__) + initial_setting = Config.fetch(unquote(config_path)) unquote(yield) on_exit(fn -> case initial_setting do - :__clear_config_absent__ -> + :error -> Config.delete(unquote(config_path)) - _ -> - Config.put(unquote(config_path), initial_setting) + {:ok, value} -> + Config.put(unquote(config_path), value) end end) From 8c57a299b463b7e5916addbbd3571b35e1742ebd Mon Sep 17 00:00:00 2001 From: Roman Chvanikov Date: Wed, 5 Aug 2020 18:23:12 +0300 Subject: [PATCH 4/4] Handle non-list keys in Config.fetch/1 --- lib/pleroma/config.ex | 2 ++ test/config_test.exs | 2 ++ 2 files changed, 4 insertions(+) diff --git a/lib/pleroma/config.ex b/lib/pleroma/config.ex index 98099ca58..a8329cc1e 100644 --- a/lib/pleroma/config.ex +++ b/lib/pleroma/config.ex @@ -32,6 +32,8 @@ defmodule Pleroma.Config do end end + def fetch(key) when is_atom(key), do: fetch([key]) + def fetch([root_key | keys]) do Enum.reduce_while(keys, Application.fetch_env(:pleroma, root_key), fn key, {:ok, config} when is_map(config) or is_list(config) -> diff --git a/test/config_test.exs b/test/config_test.exs index e2c18304e..1556e4237 100644 --- a/test/config_test.exs +++ b/test/config_test.exs @@ -127,9 +127,11 @@ defmodule Pleroma.ConfigTest do Pleroma.Config.put([:ipsum], dolor: :sit) assert Pleroma.Config.fetch([:lorem]) == {:ok, :ipsum} + assert Pleroma.Config.fetch(:lorem) == {:ok, :ipsum} assert Pleroma.Config.fetch([:ipsum, :dolor]) == {:ok, :sit} assert Pleroma.Config.fetch([:lorem, :ipsum]) == :error assert Pleroma.Config.fetch([:loremipsum]) == :error + assert Pleroma.Config.fetch(:loremipsum) == :error Pleroma.Config.delete([:lorem]) Pleroma.Config.delete([:ipsum])