Send max_patch_bytes to Gitaly via Gitaly::CommitDiffRequest

We used to apply this limitation on GitLab when using Rugged. Now that
we've shifted to Gitaly, this parameter needs to be sent via a RPC
request. Currently this value is hardcoded on Gitaly.

2 files changed, 4 insertions, 3 deletions

diff --git a/lib/gitlab/git/diff_collection.rb b/lib/gitlab/git/diff_collection.rb
index 219c69893ad..20dce8d0e06 100644
--- a/lib/gitlab/git/diff_collection.rb
+++ b/lib/gitlab/git/diff_collection.rb
@@ -11,7 +11,7 @@ module Gitlab
 
       delegate :max_files, :max_lines, :max_bytes, :safe_max_files, :safe_max_lines, :safe_max_bytes, to: :limits
 
-      def self.collection_limits(options = {})
+      def self.limits(options = {})
         limits = {}
         limits[:max_files] = options.fetch(:max_files, DEFAULT_LIMITS[:max_files])
         limits[:max_lines] = options.fetch(:max_lines, DEFAULT_LIMITS[:max_lines])
@@ -19,13 +19,14 @@ module Gitlab
         limits[:safe_max_files] = [limits[:max_files], DEFAULT_LIMITS[:max_files]].min
         limits[:safe_max_lines] = [limits[:max_lines], DEFAULT_LIMITS[:max_lines]].min
         limits[:safe_max_bytes] = limits[:safe_max_files] * 5.kilobytes # Average 5 KB per file
+        limits[:max_patch_bytes] = Gitlab::Git::Diff::SIZE_LIMIT
 
         OpenStruct.new(limits)
       end
 
       def initialize(iterator, options = {})
         @iterator = iterator
-        @limits = self.class.collection_limits(options)
+        @limits = self.class.limits(options)
         @enforce_limits = !!options.fetch(:limits, true)
         @expanded = !!options.fetch(:expanded, true)
 
diff --git a/lib/gitlab/gitaly_client/commit_service.rb b/lib/gitlab/gitaly_client/commit_service.rb
index 6a97cd8ed17..aa5b4f94090 100644
--- a/lib/gitlab/gitaly_client/commit_service.rb
+++ b/lib/gitlab/gitaly_client/commit_service.rb
@@ -369,7 +369,7 @@ module Gitlab
         request_params[:ignore_whitespace_change] = options.fetch(:ignore_whitespace_change, false)
         request_params[:enforce_limits] = options.fetch(:limits, true)
         request_params[:collapse_diffs] = !options.fetch(:expanded, true)
-        request_params.merge!(Gitlab::Git::DiffCollection.collection_limits(options).to_h)
+        request_params.merge!(Gitlab::Git::DiffCollection.limits(options).to_h)
 
         request = Gitaly::CommitDiffRequest.new(request_params)
         response = GitalyClient.call(@repository.storage, :diff_service, :commit_diff, request, timeout: GitalyClient.medium_timeout)