Add support to Ruby 2.6.x, to expand supported CIs.

.github/workflows/pull-request.yml

@@ -7,7 +7,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest]
         # Due to https://github.com/actions/runner/issues/849, we have to use quotes for '3.0'
-        ruby: ['2.7', '3.0', '3.1', head]
+        ruby: ['2.6', '2.6.9', '2.7', '3.0', '3.1', head]
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v3

.github/workflows/push.yml

@@ -9,7 +9,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest]
         # Due to https://github.com/actions/runner/issues/849, we have to use quotes for '3.0'
-        ruby: ['2.7', '3.0', '3.1', head]
+        ruby: ['2.6', '2.6.9', '2.7', '3.0', '3.1', head]
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v3

.rubocop.yml

@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: 2.7
+  TargetRubyVersion: 2.6
   NewCops: enable
 
 Style/StringLiterals:

.ruby-version

@@ -0,0 +1 @@
+3.1.1

lib/arkana/encoder.rb

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require "arkana/helpers/string"
+require "arkana/helpers/enumerable"
 
 # The encoder is responsible for finding the env vars for given keys, encoding them, and creating Secrets based on the generated data.
 module Encoder

lib/arkana/helpers/enumerable.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+# Enumerable extensions and utilities.
+module Enumerable
+  # NOTE: This is a backport of Ruby 2.7 filter_map. This method can be deleted when the minimum target Ruby version is 2.7
+  # We're not gating against redefining the method (e.g. via `unless Enumerable.method_defined? :filter_map`) because this
+  # would reduce the code coverage when analysing code coverage on Ruby versions >= 2.7
+  def filter_map
+    return to_enum(:filter_map) unless block_given?
+
+    each_with_object([]) do |item, res|
+      processed = yield(item)
+      res << processed if processed
+    end
+  end
+end

spec/swift_code_generator_spec.rb

@@ -42,8 +42,15 @@
     let(:swift_package_dir) { File.join(config.result_path, config.import_name) }
     let(:interface_swift_package_dir) { File.join(config.result_path, "#{config.import_name}Interfaces") }
 
-    def path(...)
-      Pathname.new(File.join(...))
+    # NOTE: Can't use:
+    # def path(...)
+    #   Pathname.new(File.join(...))
+    # end
+    # Until the minimum target version is Ruby 2.7
+    def path(arg1, arg2, arg3 = nil)
+      arg1and2 = File.join(arg1, arg2)
+      return Pathname.new(arg1and2) unless arg3
+      return Pathname.new(File.join(arg1and2, arg3)) if arg3
     end
 
     it "should generate all necessary directories and files" do