feat(core): Add support for retry options to be configurable (googlea…

…pis#9426)

google-apis-core/lib/google/apis/core/http_command.rb

@@ -101,8 +101,9 @@ def execute(client)
           begin
             Retriable.retriable tries: options.retries + 1,
                                 max_elapsed_time: options.max_elapsed_time,
-                                base_interval: 1,
-                                multiplier: 2,
+                                base_interval: options.base_interval,
+                                max_interval: options.max_interval,
+                                multiplier: options.multiplier,
                                 on: RETRIABLE_ERRORS do |try|
               # This 2nd level retriable only catches auth errors, and supports 1 retry, which allows
               # auth to be re-attempted without having to retry all sorts of other failures like

google-apis-core/lib/google/apis/options.rb

@@ -29,6 +29,9 @@ module Apis
       :authorization,
       :retries,
       :max_elapsed_time,
+      :base_interval,
+      :max_interval,
+      :multiplier,
       :header,
       :normalize_unicode,
       :skip_serialization,
@@ -69,6 +72,13 @@ class RequestOptions
       #   @return [Fixnum] Number of times to retry requests on server error.
       # @!attribute [rw] max_elapsed_time
       #   @return [Fixnum] Total time in seconds that requests are allowed to keep being retried.
+      # @!attribute [rw] base_interval
+      #   @return [Float] The initial interval in seconds between tries.
+      # @!attribute [rw] max_interval
+      #   @return [Fixnum] The maximum interval in seconds that any individual retry can reach.
+      # @!attribute [rw] multiplier
+      #   @return [rw] Each successive interval grows by this factor. A multipler of 1.5 means the next interval 
+      #              will be 1.5x the current interval.
       # @!attribute [rw] header
       #   @return [Hash<String,String>] Additional HTTP headers to include in requests.
       # @!attribute [rw] normalize_unicode
@@ -110,6 +120,9 @@ def merge(options)
     ClientOptions.default.transparent_gzip_decompression = true
     RequestOptions.default.retries = 0
     RequestOptions.default.max_elapsed_time = 900
+    RequestOptions.default.base_interval = 1
+    RequestOptions.default.max_interval = 60
+    RequestOptions.default.multiplier = 2
     RequestOptions.default.normalize_unicode = false
     RequestOptions.default.skip_serialization = false
     RequestOptions.default.skip_deserialization = false

google-apis-core/spec/google/apis/core/http_command_spec.rb

@@ -152,8 +152,9 @@ class DecryptResponse
       expect(Retriable).to receive(:retriable).with(
         tries: Google::Apis::RequestOptions.default.retries + 1,
         max_elapsed_time: Google::Apis::RequestOptions.default.max_elapsed_time,
-        base_interval: 1,
-        multiplier: 2,
+        base_interval: Google::Apis::RequestOptions.default.base_interval,
+        max_interval: Google::Apis::RequestOptions.default.max_interval,
+        multiplier: Google::Apis::RequestOptions.default.multiplier,
         on: described_class::RETRIABLE_ERRORS).and_call_original
       allow(Retriable).to receive(:retriable).and_call_original
 

google-apis-core/spec/google/apis/options_spec.rb

@@ -42,6 +42,9 @@
   it 'sets default values' do
     expect(defaults.retries).to eq(5) # Overriden in spec_helper.rb
     expect(defaults.max_elapsed_time).to eq(900)
+    expect(defaults.base_interval).to eq(1)
+    expect(defaults.max_interval).to eq(60)
+    expect(defaults.multiplier).to eq(2)
     expect(defaults.normalize_unicode).to be false
     expect(defaults.skip_serialization).to be false
     expect(defaults.skip_deserialization).to be false