Add support for max_count option to Git::Repository#count_commits

GITALY_SERVER_VERSION

-0.64.0
+0.65.0

Gemfile

@@ -402,7 +402,7 @@ group :ed25519 do
 end
 # Gitaly GRPC client
-gem 'gitaly-proto', '~> 0.62.0', require: 'gitaly'
+gem 'gitaly-proto', '~> 0.64.0', require: 'gitaly'
 gem 'toml-rb', '~> 0.3.15', require: false

Gemfile.lock

@@ -284,7 +284,7 @@ GEM
       po_to_json (>= 1.0.0)
       rails (>= 3.2.0)
     gherkin-ruby (0.3.2)
-    gitaly-proto (0.62.0)
+    gitaly-proto (0.64.0)
       google-protobuf (~> 3.1)
       grpc (~> 1.0)
     github-linguist (4.7.6)
@@ -1046,7 +1046,7 @@ DEPENDENCIES
   gettext (~> 3.2.2)
   gettext_i18n_rails (~> 1.8.0)
   gettext_i18n_rails_js (~> 1.2.0)
-  gitaly-proto (~> 0.62.0)
+  gitaly-proto (~> 0.64.0)
   github-linguist (~> 4.7.0)
   gitlab-flowdock-git-hook (~> 1.0.1)
   gitlab-markup (~> 1.6.2)

lib/gitlab/git/repository.rb

@@ -1661,6 +1661,7 @@ module Gitlab
         cmd = %W[#{Gitlab.config.git.bin_path} --git-dir=#{path} rev-list]
         cmd << "--after=#{options[:after].iso8601}" if options[:after]
         cmd << "--before=#{options[:before].iso8601}" if options[:before]
+        cmd << "--max-count=#{options[:max_count]}" if options[:max_count]
         cmd += %W[--count #{options[:ref]}]
         cmd += %W[-- #{options[:path]}] if options[:path].present?

lib/gitlab/gitaly_client/commit_service.rb

@@ -128,6 +128,7 @@ module Gitlab
         request.after = Google::Protobuf::Timestamp.new(seconds: options[:after].to_i) if options[:after].present?
         request.before = Google::Protobuf::Timestamp.new(seconds: options[:before].to_i) if options[:before].present?
         request.path = options[:path] if options[:path].present?
+        request.max_count = options[:max_count] if options[:max_count].present?
         GitalyClient.call(@repository.storage, :commit_service, :count_commits, request, timeout: GitalyClient.medium_timeout).count
       end

spec/lib/gitlab/git/repository_spec.rb

@@ -1015,7 +1015,7 @@ describe Gitlab::Git::Repository, seed_helper: true do
     shared_examples 'extended commit counting' do
       context 'with after timestamp' do
         it 'returns the number of commits after timestamp' do
-          options = { ref: 'master', limit: nil, after: Time.iso8601('2013-03-03T20:15:01+00:00') }
+          options = { ref: 'master', after: Time.iso8601('2013-03-03T20:15:01+00:00') }
           expect(repository.count_commits(options)).to eq(25)
         end
@@ -1023,7 +1023,7 @@ describe Gitlab::Git::Repository, seed_helper: true do
       context 'with before timestamp' do
         it 'returns the number of commits before timestamp' do
-          options = { ref: 'feature', limit: nil, before: Time.iso8601('2015-03-03T20:15:01+00:00') }
+          options = { ref: 'feature', before: Time.iso8601('2015-03-03T20:15:01+00:00') }
           expect(repository.count_commits(options)).to eq(9)
         end
@@ -1031,11 +1031,19 @@ describe Gitlab::Git::Repository, seed_helper: true do
       context 'with path' do
         it 'returns the number of commits with path ' do
-          options = { ref: 'master', limit: nil, path: "encoding" }
+          options = { ref: 'master', path: "encoding" }
           expect(repository.count_commits(options)).to eq(2)
         end
       end
+
+      context 'with max_count' do
+        it 'returns the number of commits up to the passed limit' do
+          options = { ref: 'master', max_count: 10, after: Time.iso8601('2013-03-03T20:15:01+00:00') }
+
+          expect(repository.count_commits(options)).to eq(10)
+        end
+      end
     end
     context 'when Gitaly count_commits feature is enabled' do