Refactored: Datadog::Configuration --> Datadog::Core::Configuration

.rubocop.yml

@@ -299,6 +299,10 @@ RSpec/NestedGroups:
 RSpec/MessageSpies:
   Enabled: false
 
+# Enforces use of `instance_double` over `double`
+RSpec/VerifiedDoubles:
+  Enabled: false
+
 # Enforces example line count limit.
 RSpec/ExampleLength:
   Enabled: false

docs/GettingStarted.md

@@ -1173,7 +1173,7 @@ collection = client[:people]
 collection.insert_one({ name: 'Steve' })
 
 # In case you want to override the global configuration for a certain client instance
-Datadog::Tracing.configure_onto(client, **options)
+Datadog.configure_onto(client, **options)
 ```
 
 Where `options` is an optional `Hash` that accepts the following parameters:
@@ -1270,11 +1270,11 @@ Where `options` is an optional `Hash` that accepts the following parameters:
 | `service_name` | Service name used for `http` instrumentation | `'net/http'` |
 | `split_by_domain` | Uses the request domain as the service name when set to `true`. | `false` |
 
-If you wish to configure each connection object individually, you may use the `Datadog::Tracing.configure_onto` as it follows:
+If you wish to configure each connection object individually, you may use the `Datadog.configure_onto` as it follows:
 
 ```ruby
 client = Net::HTTP.new(host, port)
-Datadog::Tracing.configure_onto(client, **options)
+Datadog.configure_onto(client, **options)
 ```
 
 ### Presto
@@ -1580,8 +1580,8 @@ end
 customer_cache = Redis.new
 invoice_cache = Redis.new
 
-Datadog::Tracing.configure_onto(customer_cache, service_name: 'customer-cache')
-Datadog::Tracing.configure_onto(invoice_cache, service_name: 'invoice-cache')
+Datadog.configure_onto(customer_cache, service_name: 'customer-cache')
+Datadog.configure_onto(invoice_cache, service_name: 'invoice-cache')
 
 # Traced call will belong to `customer-cache` service
 customer_cache.get(...)
@@ -1729,8 +1729,8 @@ sqlite_database = Sequel.sqlite
 postgres_database = Sequel.connect('postgres://user:password@host:port/database_name')
 
 # Configure each database with different service names
-Datadog::Tracing.configure_onto(sqlite_database, service_name: 'my-sqlite-db')
-Datadog::Tracing.configure_onto(postgres_database, service_name: 'my-postgres-db')
+Datadog.configure_onto(sqlite_database, service_name: 'my-sqlite-db')
+Datadog.configure_onto(postgres_database, service_name: 'my-postgres-db')
 ```
 
 ### Shoryuken

lib/datadog/ci.rb

@@ -11,11 +11,11 @@ module CI
     #
     # To modify the configuration, use {.configure}.
     #
-    # @return [Datadog::Configuration::Settings]
+    # @return [Datadog::Core::Configuration::Settings]
     # @!attribute [r] configuration
     # @public_api
     def configuration
-      Datadog::Configuration::ValidationProxy::CI.new(
+      Datadog::Core::Configuration::ValidationProxy::CI.new(
         Datadog.send(:internal_configuration)
       )
     end
@@ -26,7 +26,7 @@ def configuration
     #   c.ci_mode.enabled = true
     # end
     # ```
-    # See {Datadog::Configuration::Settings} for all available options, defaults, and
+    # See {Datadog::Core::Configuration::Settings} for all available options, defaults, and
     # available environment variables for configuration.
     #
     # Only permits access to CI configuration settings; others will raise an error.
@@ -43,18 +43,18 @@ def configuration
     # The yielded configuration `c` comes pre-populated from environment variables, if
     # any are applicable.
     #
-    # See {Datadog::Configuration::Settings} for all available options, defaults, and
+    # See {Datadog::Core::Configuration::Settings} for all available options, defaults, and
     # available environment variables for configuration.
     #
     # Will raise errors if invalid setting is accessed.
     #
-    # @yieldparam [Datadog::Configuration::Settings] c the mutable configuration object
+    # @yieldparam [Datadog::Core::Configuration::Settings] c the mutable configuration object
     # @return [void]
     # @public_api
     def configure
       # Wrap block with trace option validation
       wrapped_block = proc do |c|
-        yield(Datadog::Configuration::ValidationProxy::CI.new(c))
+        yield(Datadog::Core::Configuration::ValidationProxy::CI.new(c))
       end
 
       # Configure application normally

lib/datadog/ci/extensions.rb

@@ -1,6 +1,6 @@
 # typed: true
-require 'ddtrace/configuration/settings'
-require 'ddtrace/configuration/components'
+require 'datadog/core/configuration/settings'
+require 'datadog/core/configuration/components'
 
 require 'datadog/ci/configuration/settings'
 require 'datadog/ci/configuration/components'
@@ -10,8 +10,8 @@ module CI
     # Extends Datadog tracing with CI features
     module Extensions
       def self.activate!
-        Datadog::Configuration::Settings.extend(CI::Configuration::Settings)
-        Datadog::Configuration::Components.prepend(CI::Configuration::Components)
+        Datadog::Core::Configuration::Settings.extend(CI::Configuration::Settings)
+        Datadog::Core::Configuration::Components.prepend(CI::Configuration::Components)
       end
     end
   end

lib/datadog/core.rb

@@ -0,0 +1,73 @@
+# typed: strict
+# TODO: Move these requires to smaller modules.
+#       Would be better to lazy load these; not
+#       all of these components will be used in
+#       every application.
+# require 'datadog/core/buffer/cruby'
+# require 'datadog/core/buffer/random'
+# require 'datadog/core/buffer/thread_safe'
+# require 'datadog/core/chunker'
+# require 'datadog/core/configuration'
+# require 'datadog/core/diagnostics/environment_logger'
+# require 'datadog/core/diagnostics/ext'
+# require 'datadog/core/diagnostics/health'
+# require 'datadog/core/encoding'
+# require 'datadog/core/environment/cgroup'
+# require 'datadog/core/environment/class_count'
+# require 'datadog/core/environment/container'
+# require 'datadog/core/environment/ext'
+# require 'datadog/core/environment/gc'
+# require 'datadog/core/environment/identity'
+# require 'datadog/core/environment/socket'
+# require 'datadog/core/environment/thread_count'
+# require 'datadog/core/environment/variable_helpers'
+# require 'datadog/core/environment/vm_cache'
+# require 'datadog/core/error'
+# require 'datadog/core/event'
+# require 'datadog/core/git/ext'
+# require 'datadog/core/logger'
+# require 'datadog/core/metrics/client'
+# require 'datadog/core/metrics/ext'
+# require 'datadog/core/metrics/helpers'
+# require 'datadog/core/metrics/logging'
+# require 'datadog/core/metrics/metric'
+# require 'datadog/core/metrics/options'
+# require 'datadog/core/pin'
+# require 'datadog/core/quantization/hash'
+# require 'datadog/core/quantization/http'
+# require 'datadog/core/runtime/ext'
+# require 'datadog/core/runtime/metrics'
+# require 'datadog/core/utils'
+# require 'datadog/core/utils/compression'
+# require 'datadog/core/utils/database'
+# require 'datadog/core/utils/forking'
+# require 'datadog/core/utils/object_set'
+# require 'datadog/core/utils/only_once'
+# require 'datadog/core/utils/sequence'
+# require 'datadog/core/utils/string_table'
+# require 'datadog/core/utils/time'
+# require 'datadog/core/worker'
+# require 'datadog/core/workers/async'
+# require 'datadog/core/workers/interval_loop'
+# require 'datadog/core/workers/polling'
+# require 'datadog/core/workers/queue'
+# require 'datadog/core/workers/runtime_metrics'
+
+require 'datadog/core/extensions'
+
+# We must load core extensions to make certain global APIs
+# accessible: both for Datadog features and the core itself.
+module Datadog
+  extend Core::Extensions
+
+  # Add shutdown hook:
+  # Ensures the Datadog components have a chance to gracefully
+  # shut down and cleanup before terminating the process.
+  at_exit do
+    if Interrupt === $! # rubocop:disable Style/SpecialGlobalVars is process terminating due to a ctrl+c or similar?
+      Datadog.send(:handle_interrupt_shutdown!)
+    else
+      Datadog.shutdown!
+    end
+  end
+end