remove deprecated code to handle PLINY_ENV

finally making the switch from `PLINY_ENV` to `APP_ENV` to align with
Sinatra. See #277 for some
details

Author: beanieboi

CHANGELOG.md

@@ -3,6 +3,12 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [Unreleased]
+
+### Removed
+
+- Remove deprecated `PLINY_ENV` environment variable support in favor of `APP_ENV` to align with Sinatra conventions (https://github.com/interagent/pliny/pull/373)
+
 ## [1.2.0] - 2025-02-10
 ### Added
 - Add support for Ruby 3.3 and 3.4 ([#366](https://github.com/interagent/pliny/pull/3366))

lib/pliny/config_helpers.rb

@@ -50,23 +50,13 @@ def array(method = nil)
     end
 
     def rack_env
-      if env == "development" || env == "test"
+      if app_env == "development" || app_env == "test"
         "development"
       else
         "deployment"
       end
     end
 
-    # DEPRECATED: pliny_env is deprecated in favour of app_env.
-    #             See more at https://github.com/interagent/pliny/issues/277
-    #
-    # This method is kept temporary in case it is used somewhere in the app.
-    def pliny_env
-      warn "Config.pliny_env is deprecated and will be removed, " \
-           "use Config.app_env instead."
-      env
-    end
-
     private
 
     def cast(value, method)
@@ -80,20 +70,6 @@ def create(name, value)
         instance_eval "def #{name}?; !!@#{name} end", __FILE__, __LINE__
       end
     end
-
-    # This method helps with transition from PLINY_ENV to APP_ENV.
-    def env
-      legacy_env || app_env
-    end
-
-    # PLINY_ENV is deprecated, but it might be still used by someone.
-    def legacy_env
-      if ENV.key?("PLINY_ENV")
-        warn "PLINY_ENV is deprecated in favour of APP_ENV, " \
-             "update .env file or application configuration."
-        ENV["PLINY_ENV"]
-      end
-    end
   end
 
   # DEPRECATED: ConfigHelpers was a slightly more primitive version

spec/config_helpers_spec.rb

@@ -49,84 +49,5 @@
 
       assert_equal "deployment", config.rack_env
     end
-
-    context "when legacy PLINY_ENV is still defined" do
-      before do
-        ENV["ORIGINAL_PLINY_ENV"] = ENV["PLINY_ENV"]
-        ENV["PLINY_ENV"] = "staging"
-      end
-
-      after do
-        ENV["PLINY_ENV"] = ENV.delete("ORIGINAL_PLINY_ENV")
-      end
-
-      it "uses PLINY_ENV value instead of APP_ENV" do
-        config = Class.new do
-          extend Pliny::CastingConfigHelpers
-          override :app_env, "development", string
-        end
-
-        assert_equal "deployment", config.rack_env
-      end
-
-      it "displays deprecation warning" do
-        config = Class.new do
-          extend Pliny::CastingConfigHelpers
-          override :app_env, "development", string
-        end
-
-        io = StringIO.new
-        $stderr = io
-        config.rack_env
-        $stderr = STDERR
-
-        assert_includes io.string, "PLINY_ENV is deprecated"
-      end
-    end
-  end
-
-  describe "#pliny_env" do
-    it "displays deprecation warning if pliny_env is used" do
-      config = Class.new do
-        extend Pliny::CastingConfigHelpers
-        override :app_env, "development", string
-      end
-
-      io = StringIO.new
-      $stderr = io
-      config.pliny_env
-      $stderr = STDERR
-
-      assert_includes io.string, "Config.pliny_env is deprecated"
-    end
-
-    it "returns app_env value" do
-      config = Class.new do
-        extend Pliny::CastingConfigHelpers
-        override :app_env, "foo", string
-      end
-
-      assert_equal "foo", config.pliny_env
-    end
-
-    context "when legacy PLINY_ENV is still defined" do
-      before do
-        ENV["ORIGINAL_PLINY_ENV"] = ENV["PLINY_ENV"]
-        ENV["PLINY_ENV"] = "staging"
-      end
-
-      after do
-        ENV["PLINY_ENV"] = ENV.delete("ORIGINAL_PLINY_ENV")
-      end
-
-      it "returns PLINY_ENV value" do
-        config = Class.new do
-          extend Pliny::CastingConfigHelpers
-          override :app_env, "development", string
-        end
-
-        assert_equal "staging", config.pliny_env
-      end
-    end
   end
 end