Bump minimum Elixir version to 1.10

With the release of Elixir 1.14, Elixir 1.9 is now end-of-life.

Elixir 1.10 Release Notes:
https://github.com/elixir-lang/elixir/releases/tag/v1.10.0

14 files changed, 18 insertions, 38 deletions

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0e7f4926a..37ec48353 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -271,7 +271,7 @@ amd64:
     MIX_ENV: prod
   before_script: &before-release
   - apt-get update && apt-get install -y cmake libmagic-dev
-  - echo "import Mix.Config" > config/prod.secret.exs
+  - echo "import Config" > config/prod.secret.exs
   - mix local.hex --force
   - mix local.rebar --force
   script: &release
@@ -290,7 +290,7 @@ amd64-musl:
   variables: *release-variables
   before_script: &before-release-musl
   - apk add git build-base cmake file-dev openssl
-  - echo "import Mix.Config" > config/prod.secret.exs
+  - echo "import Config" > config/prod.secret.exs
   - mix local.hex --force
   - mix local.rebar --force
   script: *release
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d0ef4e11..caa5d0cd2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - MastoFE
 
 ### Changed
+- **Breaking:** Elixir >=1.10 is now required (was >= 1.9)
 - Allow users to remove their emails if instance does not need email to register
 - Uploadfilter `Pleroma.Upload.Filter.Exiftool` has been renamed to `Pleroma.Upload.Filter.Exiftool.StripLocation`
 - Updated the recommended pleroma.vcl configuration for Varnish to target Varnish 7.0+
diff --git a/Dockerfile b/Dockerfile
index e68b7ea7c..334d954f7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,11 +1,11 @@
-FROM elixir:1.9-alpine as build
+FROM elixir:1.10-alpine as build
 
 COPY . .
 
 ENV MIX_ENV=prod
 
 RUN apk add git gcc g++ musl-dev make cmake file-dev &&\
-	echo "import Mix.Config" > config/prod.secret.exs &&\
+	echo "import Config" > config/prod.secret.exs &&\
 	mix local.hex --force &&\
 	mix local.rebar --force &&\
 	mix deps.get --only prod &&\
diff --git a/ci/Dockerfile b/ci/Dockerfile
index e6a8b438c..5929f832d 100644
--- a/ci/Dockerfile
+++ b/ci/Dockerfile
@@ -1,4 +1,4 @@
-FROM elixir:1.9.4
+FROM elixir:1.10.4
 
 RUN apt-get update &&\
   apt-get install -y libmagic-dev cmake libimage-exiftool-perl ffmpeg &&\
diff --git a/config/config.exs b/config/config.exs
index 1653358a0..6adb63e5f 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -37,7 +37,7 @@
 # FIGURATION! EDIT YOUR SECRET FILE (either prod.secret.exs, dev.secret.exs).
 #
 # This file is responsible for configuring your application
-# and its dependencies with the aid of the Mix.Config module.
+# and its dependencies with the aid of the Config module.
 #
 # This configuration file is loaded before any dependency and
 # is restricted to this project.
diff --git a/docs/configuration/howto_database_config.md b/docs/configuration/howto_database_config.md
index ae1462f9b..e5af9097a 100644
--- a/docs/configuration/howto_database_config.md
+++ b/docs/configuration/howto_database_config.md
@@ -59,7 +59,7 @@ The configuration of Pleroma has traditionally been managed with a config file,
   Here is an example of a server config stripped down after migration:
 
   ```
-  use Mix.Config
+  import Config
 
   config :pleroma, Pleroma.Web.Endpoint,
     url: [host: "cool.pleroma.site", scheme: "https", port: 443]
diff --git a/docs/installation/generic_dependencies.include b/docs/installation/generic_dependencies.include
index 2dbd93e42..dcaacfdfd 100644
--- a/docs/installation/generic_dependencies.include
+++ b/docs/installation/generic_dependencies.include
@@ -1,7 +1,7 @@
 ## Required dependencies
 
 * PostgreSQL 9.6+
-* Elixir 1.9+
+* Elixir 1.10+
 * Erlang OTP 22.2+
 * git
 * file / libmagic
diff --git a/elixir_buildpack.config b/elixir_buildpack.config
index 946408c12..1102e7145 100644
--- a/elixir_buildpack.config
+++ b/elixir_buildpack.config
@@ -1,2 +1,2 @@
-elixir_version=1.9.4
+elixir_version=1.10.4
 erlang_version=22.3.4.1
diff --git a/lib/mix/tasks/pleroma/config.ex b/lib/mix/tasks/pleroma/config.ex
index 33d147d36..3a2ea44f8 100644
--- a/lib/mix/tasks/pleroma/config.ex
+++ b/lib/mix/tasks/pleroma/config.ex
@@ -304,13 +304,8 @@ defmodule Mix.Tasks.Pleroma.Config do
     System.cmd("mix", ["format", path])
   end
 
-  if Code.ensure_loaded?(Config.Reader) do
-    defp config_header, do: "import Config\r\n\r\n"
-    defp read_file(config_file), do: Config.Reader.read_imports!(config_file)
-  else
-    defp config_header, do: "use Mix.Config\r\n\r\n"
-    defp read_file(config_file), do: Mix.Config.eval!(config_file)
-  end
+  defp config_header, do: "import Config\r\n\r\n"
+  defp read_file(config_file), do: Config.Reader.read_imports!(config_file)
 
   defp write_and_delete(config, file, delete?) do
     config
diff --git a/lib/pleroma/config/loader.ex b/lib/pleroma/config/loader.ex
index 015be3d8e..bd85eccab 100644
--- a/lib/pleroma/config/loader.ex
+++ b/lib/pleroma/config/loader.ex
@@ -19,21 +19,10 @@ defmodule Pleroma.Config.Loader do
     :tesla
   ]
 
-  if Code.ensure_loaded?(Config.Reader) do
-    @reader Config.Reader
-
-    def read(path), do: @reader.read!(path)
-  else
-    # support for Elixir less than 1.9
-    @reader Mix.Config
-    def read(path) do
-      path
-      |> @reader.eval!()
-      |> elem(0)
-    end
-  end
+  @reader Config.Reader
 
   @spec read(Path.t()) :: keyword()
+  def read(path), do: @reader.read!(path)
 
   @spec merge(keyword(), keyword()) :: keyword()
   def merge(c1, c2), do: @reader.merge(c1, c2)
diff --git a/lib/pleroma/web/activity_pub/object_validator.ex b/lib/pleroma/web/activity_pub/object_validator.ex
index f3e31c931..21442687c 100644
--- a/lib/pleroma/web/activity_pub/object_validator.ex
+++ b/lib/pleroma/web/activity_pub/object_validator.ex
@@ -204,8 +204,7 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidator do
 
   def cast_and_apply(o), do: {:error, {:validator_not_set, o}}
 
-  # is_struct/1 appears in Elixir 1.11
-  def stringify_keys(%{__struct__: _} = object) do
+  def stringify_keys(object) when is_struct(object) do
     object
     |> Map.from_struct()
     |> stringify_keys
diff --git a/mix.exs b/mix.exs
index 81c4cf9ae..a075cf05a 100644
--- a/mix.exs
+++ b/mix.exs
@@ -5,7 +5,7 @@ defmodule Pleroma.Mixfile do
     [
       app: :pleroma,
       version: version("2.4.52"),
-      elixir: "~> 1.9",
+      elixir: "~> 1.10",
       elixirc_paths: elixirc_paths(Mix.env()),
       compilers: [:phoenix, :gettext] ++ Mix.compilers(),
       elixirc_options: [warnings_as_errors: warnings_as_errors()],
diff --git a/priv/templates/sample_config.eex b/priv/templates/sample_config.eex
index 0068969ac..d44c324ca 100644
--- a/priv/templates/sample_config.eex
+++ b/priv/templates/sample_config.eex
@@ -3,11 +3,7 @@
 # NOTE: This file should not be committed to a repo or otherwise made public
 # without removing sensitive information.
 
-<%= if Code.ensure_loaded?(Config) or not Code.ensure_loaded?(Mix.Config) do
-  "import Config"
-else
-  "use Mix.Config"
-end %>
+import Config
 
 config :pleroma, Pleroma.Web.Endpoint,
    url: [host: "<%= domain %>", scheme: "https", port: <%= port %>],
diff --git a/restarter/mix.exs b/restarter/mix.exs
index 9f26f5f64..4bb9b76e2 100644
--- a/restarter/mix.exs
+++ b/restarter/mix.exs
@@ -5,7 +5,7 @@ defmodule Restarter.MixProject do
     [
       app: :restarter,
       version: "0.1.0",
-      elixir: "~> 1.8",
+      elixir: "~> 1.10",
       start_permanent: Mix.env() == :prod,
       deps: deps()
     ]