freeze the strings

Author: jtarchie

.rubocop.yml

@@ -3,7 +3,7 @@
 require: rubocop-rspec
 
 Style/FrozenStringLiteralComment:
-  Enabled: false
+  Enabled: always
 
 AllCops:
   TargetRubyVersion: 2.5

Gemfile.lock

@@ -43,7 +43,7 @@ GEM
     octokit (4.8.0)
       sawyer (~> 0.8.0, >= 0.5.3)
     parallel (1.12.1)
-    parser (2.5.0.0)
+    parser (2.5.0.2)
       ast (~> 2.4.0)
     powerpack (0.1.1)
     pry (0.11.3)
@@ -79,7 +79,7 @@ GEM
       rainbow (>= 2.2.2, < 4.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.0, >= 1.0.1)
-    rubocop-rspec (1.22.2)
+    rubocop-rspec (1.23.0)
       rubocop (>= 0.52.1)
     ruby-progressbar (1.9.0)
     safe_yaml (1.0.4)

assets/lib/commands/base.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'faraday'
 require 'octokit'
 require 'faraday-http-cache'

assets/lib/commands/check.rb

@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 require 'json'
 require_relative 'base'

assets/lib/commands/in.rb

@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 require 'English'
 require 'json'

assets/lib/commands/out.rb

@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 require 'json'
 require_relative 'base'
@@ -86,10 +87,11 @@ def output
     private
 
     def whitelist(context:)
+      c = context.dup
       %w[BUILD_ID BUILD_NAME BUILD_JOB_NAME BUILD_PIPELINE_NAME BUILD_TEAM_NAME ATC_EXTERNAL_URL].each do |name|
-        context.gsub!("$#{name}", ENV[name] || '')
+        c.gsub!("$#{name}", ENV[name] || '')
       end
-      context
+      c
     end
 
     def params

assets/lib/filters/all.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'octokit'
 require_relative '../pull_request'
 

assets/lib/filters/ci_skip.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Filters
   class CISkip
     def initialize(pull_requests:, input: Input.instance)

assets/lib/filters/fork.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Filters
   class Fork
     def initialize(pull_requests:, input: Input.instance)

assets/lib/filters/label.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Filters
   class Label
     def initialize(pull_requests:, input: Input.instance)