[chore] Drop support for Elixir 1.13 and 1.14:

* Set default Elixir version to 1.15.8
* Set default OTP version to 25.0
* Drop Elixir 1.13 and 1.14 from allowed versions and CI tests
* Drop OTP 24 from allowed versions and CI tests

Author: Moosieus

.github/workflows/elixir.yml

@@ -18,7 +18,7 @@ env:
   # so keeping credo, dialyzer and formatting checks in the matrix
   # would create an impossible situation, as different versions would have
   # different rules
-  DEFAULT_ELIXIR: 1.14.3-otp-25
+  DEFAULT_ELIXIR: 1.15.8-otp-25
   DEFAULT_OTP: 25.3.2.4
 
 permissions:
@@ -162,13 +162,9 @@ jobs:
             otp: "26"
           - elixir: "1.16"
             otp: "25"
-          - elixir: "1.15.6"
+          - elixir: "1.15.8"
             otp: "26"
-          - elixir: "1.15.6"
-            otp: "25"
-          - elixir: "1.14"
-            otp: "25"
-          - elixir: "1.13"
+          - elixir: "1.15.8"
             otp: "25"
     steps:
       # Step: Check out the code.

.github/workflows/release.yml

@@ -14,8 +14,8 @@ jobs:
       - name: Set up Elixir
         uses: erlef/setup-beam@v1
         with:
-          otp-version: "24.3.4.12"
-          elixir-version: "1.13.4-otp-24"
+          otp-version: "25.0"
+          elixir-version: "1.15.8-otp-25"
           version-type: strict
 
       - name: Checkout code

README.md

@@ -84,9 +84,9 @@ Lexical will be available in `/path/to/lexical`.
 
 ## Development
 
-Lexical is intended to run on any version of Erlang 24+ and Elixir
-1.13+. Before beginning development, you should install Erlang
-`24.3.4.12` and Elixir `1.13.4` and use those versions when you're
+Lexical is intended to run on any version of Erlang 25+ and Elixir
+1.15+. Before beginning development, you should install Erlang
+`25.0` and Elixir `1.15.8` and use those versions when you're
 building code.
 
 You should also look at the [complete compatibility

apps/common/lib/lexical/document/lines.ex

@@ -147,11 +147,7 @@ defimpl Enumerable, for: Lexical.Document.Lines do
 
   def slice(%Lines{} = document) do
     slicing_function =
-      if Version.match?(System.version(), ">= 1.14.0") do
-        fn start, len, step -> do_slice(document, start, len, step) end
-      else
-        fn start, len -> do_slice(document, start, len, 1) end
-      end
+      fn start, len, step -> do_slice(document, start, len, step) end
 
     {:ok, Lines.size(document), slicing_function}
   end

apps/common/mix.exs

@@ -6,7 +6,7 @@ defmodule Common.MixProject do
     [
       app: :common,
       version: "0.7.2",
-      elixir: "~> 1.13",
+      elixir: "~> 1.15",
       elixirc_paths: elixirc_paths(Mix.env()),
       start_permanent: Mix.env() == :prod,
       deps: deps(),

apps/common/test/lexical/ast/tokens_test.exs

@@ -63,23 +63,23 @@ defmodule Lexical.Ast.TokensTest do
       tokens = Tokens.prefix_stream(document, position)
 
       assert Enum.to_list(tokens) == [
-               {:eol, '\n', []},
-               {:eol, '\n', []},
-               {:eol, '\n', []},
-               {:eol, '\n', []},
+               {:eol, ~c"\n", []},
+               {:eol, ~c"\n", []},
+               {:eol, ~c"\n", []},
+               {:eol, ~c"\n", []},
                {
                  :interpolated_string,
                  [
                    {:literal, "foo«", {{1, 1}, {1, 5}}},
                    {:interpolation,
-                    [{:eol, {3, 18, 1}}, {:int, {4, 13, 2}, '2'}, {:eol, {4, 14, 1}}],
+                    [{:eol, {3, 18, 1}}, {:int, {4, 13, 2}, ~c"2"}, {:eol, {4, 14, 1}}],
                     {{3, 18}, {5, 11}}},
                    {:literal, "»bar", {{5, 11}, {5, 15}}}
                  ],
                  {3, 11}
                },
-               {:eol, '\n', []},
-               {:eol, '\n', []}
+               {:eol, ~c"\n", []},
+               {:eol, ~c"\n", []}
              ]
     end
   end

apps/common/test/lexical/vm/versions_test.exs

@@ -85,29 +85,29 @@ defmodule Lexical.VM.VersionTest do
 
   describe "compatible?/1" do
     test "lower major versions of erlang are compatible with later major versions" do
-      patch_system_versions("1.14.5", "26.0")
-      patch_tagged_versions("1.14.5", "25.0")
+      patch_system_versions("1.15.8", "26.0")
+      patch_tagged_versions("1.15.8", "25.0")
 
       assert compatible?("/foo/bar/baz")
     end
 
     test "higher major versions are not compatible with lower major versions" do
-      patch_system_versions("1.14.5", "25.0")
-      patch_tagged_versions("1.14.5", "26.0")
+      patch_system_versions("1.15.8", "25.0")
+      patch_tagged_versions("1.15.8", "26.0")
 
       refute compatible?("/foo/bar/baz")
     end
 
     test "the same versions are compatible with each other" do
-      patch_system_versions("1.14.5", "25.3.3")
-      patch_tagged_versions("1.14.5", "25.0")
+      patch_system_versions("1.15.8", "25.3.3")
+      patch_tagged_versions("1.15.8", "25.0")
 
       assert compatible?("/foo/bar/baz")
     end
 
     test "higher minor versions are compatible" do
-      patch_system_versions("1.14.5", "25.3.0")
-      patch_tagged_versions("1.14.5", "25.0")
+      patch_system_versions("1.15.8", "25.3.0")
+      patch_tagged_versions("1.15.8", "25.0")
 
       assert compatible?("/foo/bar/baz")
     end

apps/lexical_credo/mix.exs

@@ -8,7 +8,7 @@ defmodule LexicalCredo.MixProject do
     [
       app: :lexical_credo,
       version: @version,
-      elixir: "~> 1.13",
+      elixir: "~> 1.15",
       start_permanent: Mix.env() == :prod,
       deps: deps(),
       docs: docs(),

apps/proto/mix.exs

@@ -6,7 +6,7 @@ defmodule Proto.MixProject do
     [
       app: :proto,
       version: "0.7.2",
-      elixir: "~> 1.13",
+      elixir: "~> 1.15",
       start_permanent: Mix.env() == :prod,
       deps: deps(),
       dialyzer: Mix.Dialyzer.config(add_apps: [:jason])

apps/protocol/mix.exs

@@ -7,7 +7,7 @@ defmodule Lexical.Protocol.MixProject do
       app: :protocol,
       env: Mix.env(),
       version: "0.7.2",
-      elixir: "~> 1.13",
+      elixir: "~> 1.15",
       start_permanent: Mix.env() == :prod,
       deps: deps(),
       dialyzer: Mix.Dialyzer.config(add_apps: [:jason]),