fix: lint issues

gemfiles/sprockets_4_0.gemfile

@@ -1,14 +1,16 @@
+# frozen_string_literal: true
+
 # This file was generated by Appraisal
 
-source "http://rubygems.org"
+source 'http://rubygems.org'
 
-gem "appraisal"
-gem "haml", "~> 6.3"
-gem "slim", "~> 5.2"
-gem "minitest", "~> 5.25"
-gem "rake", "~> 13.2"
-gem "rubocop", require: false
-gem "rubocop-rake", require: false
-gem "sprockets", "4.0.3"
+gem 'appraisal'
+gem 'haml', '~> 6.3'
+gem 'minitest', '~> 5.25'
+gem 'rake', '~> 13.2'
+gem 'rubocop', require: false
+gem 'rubocop-rake', require: false
+gem 'slim', '~> 5.2'
+gem 'sprockets', '4.0.3'
 
-gemspec path: "../"
+gemspec path: '../'

gemfiles/sprockets_4_1.gemfile

@@ -1,14 +1,16 @@
+# frozen_string_literal: true
+
 # This file was generated by Appraisal
 
-source "http://rubygems.org"
+source 'http://rubygems.org'
 
-gem "appraisal"
-gem "haml", "~> 6.3"
-gem "slim", "~> 5.2"
-gem "minitest", "~> 5.25"
-gem "rake", "~> 13.2"
-gem "rubocop", require: false
-gem "rubocop-rake", require: false
-gem "sprockets", "4.1.1"
+gem 'appraisal'
+gem 'haml', '~> 6.3'
+gem 'minitest', '~> 5.25'
+gem 'rake', '~> 13.2'
+gem 'rubocop', require: false
+gem 'rubocop-rake', require: false
+gem 'slim', '~> 5.2'
+gem 'sprockets', '4.1.1'
 
-gemspec path: "../"
+gemspec path: '../'

gemfiles/sprockets_4_2.gemfile

@@ -1,14 +1,16 @@
+# frozen_string_literal: true
+
 # This file was generated by Appraisal
 
-source "http://rubygems.org"
+source 'http://rubygems.org'
 
-gem "appraisal"
-gem "haml", "~> 6.3"
-gem "slim", "~> 5.2"
-gem "minitest", "~> 5.25"
-gem "rake", "~> 13.2"
-gem "rubocop", require: false
-gem "rubocop-rake", require: false
-gem "sprockets", "4.2.1"
+gem 'appraisal'
+gem 'haml', '~> 6.3'
+gem 'minitest', '~> 5.25'
+gem 'rake', '~> 13.2'
+gem 'rubocop', require: false
+gem 'rubocop-rake', require: false
+gem 'slim', '~> 5.2'
+gem 'sprockets', '4.2.1'
 
-gemspec path: "../"
+gemspec path: '../'

lib/handlebars_assets/handlebars_template.rb

@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+require 'English'
 require 'json'
 
 module HandlebarsAssets
@@ -88,17 +89,16 @@ def choose_engine(data)
 
     def compile(source)
       # remove trailing \n on file, for some reason the directives pipeline adds this
-      trim_source = source.chomp($/)
+      trim_source = source.chomp($INPUT_RECORD_SEPARATOR)
 
       # handle the case of multiple frameworks combined with ember
       # DEFER: use extension setup for ember
-      data =
-        if (HandlebarsAssets::Config.multiple_frameworks? && @template_path.ember?) ||
-           (HandlebarsAssets::Config.ember? && !HandlebarsAssets::Config.multiple_frameworks?)
-          compile_ember(trim_source)
-        else
-          compile_default(trim_source)
-        end
+      if (HandlebarsAssets::Config.multiple_frameworks? && @template_path.ember?) ||
+         (HandlebarsAssets::Config.ember? && !HandlebarsAssets::Config.multiple_frameworks?)
+        compile_ember(trim_source)
+      else
+        compile_default(trim_source)
+      end
     end
 
     def compile_ember(source)

test/test_helper.rb

@@ -25,7 +25,7 @@ module CompilerSupport
 
   def compile_hbs(source)
     compiler_src = Pathname(HandlebarsAssets::Config.compiler_path).join(HandlebarsAssets::Config.compiler).read
-    ExecJS.compile("#{compiler_src}").call('Handlebars.precompile', source, HandlebarsAssets::Config.options)
+    ExecJS.compile(compiler_src.to_s).call('Handlebars.precompile', source, HandlebarsAssets::Config.options)
   end
 
   def hbs_compiled(template_name, source)