Convert ci_config to use pathname

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - C++ definitions of `ARDUINO_CI_COMPILATION_MOCKS` and `ARDUINO_CI_GODMODE` to aid in compilation macros
 
 ### Changed
+- `CIConfig` now uses `Pathname` instead of strings
 
 ### Deprecated
 

lib/arduino_ci/ci_config.rb

@@ -1,4 +1,5 @@
 require 'yaml'
+require 'pathname'
 
 # base config (platforms)
 #   project config - .arduino_ci_platforms.yml
@@ -58,7 +59,7 @@ class << self
       def default
         ret = new
         ret.instance_variable_set("@is_default", true)
-        ret.load_yaml(File.expand_path("../../misc/default.yml", __dir__))
+        ret.load_yaml((Pathname.new(__dir__) + "../../misc/default.yml").realpath)
         ret
       end
     end
@@ -205,8 +206,8 @@ def with_override_config(config_hash)
     # @return [ArduinoCI::CIConfig]
     def with_config(base_dir, val_when_no_match)
       CONFIG_FILENAMES.each do |f|
-        path = base_dir.nil? ? f : File.join(base_dir, f)
-        return (yield path) if File.exist?(path)
+        path = base_dir.nil? ? Pathname.new(f) : base_dir + f
+        return (yield path) if path.exist?
       end
       val_when_no_match
     end
@@ -219,10 +220,10 @@ def from_project_library
 
     # Produce a configuration override taken from an Arduino library example path
     # handle either path to example file or example dir
-    # @param path [String] the path to the settings yaml file
+    # @param path [Pathname] the path to the settings yaml file
     # @return [ArduinoCI::CIConfig] the new settings object
     def from_example(example_path)
-      base_dir = File.directory?(example_path) ? example_path : File.dirname(example_path)
+      base_dir = example_path.directory? ? example_path : example_path.dirname
       with_config(base_dir, self) { |path| with_override(path) }
     end
 

spec/ci_config_spec.rb

@@ -43,7 +43,7 @@
   context "hash" do
     it "converts to hash" do
       base = ArduinoCI::CIConfig.new
-      base.load_yaml(File.join(File.dirname(__FILE__), "yaml", "o2.yaml"))
+      base.load_yaml(Pathname.new(__dir__) + "yaml" + "o2.yaml")
 
       expect(base.to_h).to eq(
         packages: {},
@@ -82,7 +82,7 @@
 
   context "with_override" do
     it "loads from yaml" do
-      override_file = File.join(File.dirname(__FILE__), "yaml", "o1.yaml")
+      override_file = Pathname.new(__dir__) + "yaml" + "o1.yaml"
       base = ArduinoCI::CIConfig.default
       expect(base.is_default).to be true
       combined_config = base.with_override(override_file)
@@ -123,7 +123,7 @@
 
   context "with_config" do
     it "loads from yaml" do
-      override_dir = File.join(File.dirname(__FILE__), "yaml", "override1")
+      override_dir = Pathname.new(__dir__) + "yaml" + "override1"
       base_config = ArduinoCI::CIConfig.default
       combined_config = base_config.from_example(override_dir)
 
@@ -188,7 +188,7 @@
         "mars.cpp"
       ])
 
-      override_file = File.join(File.dirname(__FILE__), "yaml", "o1.yaml")
+      override_file = Pathname.new(__dir__) + "yaml" + "o1.yaml"
       combined_config = ArduinoCI::CIConfig.default.with_override(override_file)
       expect(combined_config.unittest_info[:testfiles][:select]).to match_array(["*-*.*"])
       expect(combined_config.unittest_info[:testfiles][:reject]).to match_array(["sam-squamsh.*"])