Add Coverband for production code coverage tracking

Gemfile

@@ -12,6 +12,7 @@ gem "amazing_print",                            "~> 1.5"
 gem "aws-sdk-s3",                               "~> 1.8",  require: false
 gem "baseline",                                 github: "fastruby/baseline"
 gem "bootsnap",                                 "~> 1.17", require: false
+gem "coverband",                                "~> 6.1"
 gem "bootstrap",                                "~> 5.3.3"
 gem "cgi"
 gem "dartsass-rails",                           "~> 0.5"

Gemfile.lock

@@ -129,6 +129,9 @@ GEM
     choice (0.2.0)
     concurrent-ruby (1.3.5)
     connection_pool (2.5.4)
+    coverband (6.2.0)
+      base64
+      redis (>= 3.0)
     crack (1.0.0)
       bigdecimal
       rexml
@@ -449,6 +452,7 @@ DEPENDENCIES
   bootsnap (~> 1.17)
   bootstrap (~> 5.3.3)
   cgi
+  coverband (~> 6.1)
   dartsass-rails (~> 0.5)
   database_cleaner-active_record
   dotenv (~> 3.1.2)

Gemfile.next.lock

@@ -131,6 +131,9 @@ GEM
     choice (0.2.0)
     concurrent-ruby (1.3.5)
     connection_pool (2.5.4)
+    coverband (6.2.0)
+      base64
+      redis (>= 3.0)
     crack (1.0.0)
       bigdecimal
       rexml
@@ -454,6 +457,7 @@ DEPENDENCIES
   bootsnap (~> 1.17)
   bootstrap (~> 5.3.3)
   cgi
+  coverband (~> 6.1)
   dartsass-rails (~> 0.5)
   database_cleaner-active_record
   dotenv (~> 3.1.2)

config/initializers/coverband.rb

@@ -0,0 +1,9 @@
+Coverband.configure do |config|
+  config.store = Coverband::Adapters::RedisStore.new(
+    Redis.new(url: ENV["REDIS_URL"], ssl_params: { verify_mode: OpenSSL::SSL::VERIFY_NONE })
+  )
+  config.track_views = true
+  config.background_reporting_enabled = true
+  config.web_enable_clear = true
+  config.ignore = %w[config/boot.rb config/environment.rb config/puma.rb bin/]
+end

config/routes.rb

@@ -1,5 +1,6 @@
 require "sidekiq/web"
 require "sidekiq-scheduler/web"
+require "coverband"
 
 if Rails.env.production?
   Sidekiq::Web.use Rack::Auth::Basic do |username, password|
@@ -9,10 +10,19 @@
     }.map { ActiveSupport::SecurityUtils.secure_compare _1, ENV.fetch(_2) }
      .all?
   end
+
+  Coverband::Reporters::Web.use Rack::Auth::Basic do |username, password|
+    {
+      username => "COVERBAND_USERNAME",
+      password => "COVERBAND_PASSWORD"
+    }.map { ActiveSupport::SecurityUtils.secure_compare _1, ENV.fetch(_2) }
+     .all?
+  end
 end
 
 Rails.application.routes.draw do
   mount Sidekiq::Web => "sidekiq"
+  mount Coverband::Reporters::Web.new, at: "/coverband"
 
   get '/sitemap.xml', to: 'sitemaps#show'
   get "/robots.txt" => "static#robots"