Adds content to createCommit mutation

Changelog: added

app/graphql/mutations/commits/create.rb

@@ -44,6 +44,11 @@ module Mutations
             null: true,
             description: 'The commit after mutation.'
 
+      field :content,
+            [GraphQL::STRING_TYPE],
+            null: true,
+            description: 'Contents of the commit.'
+
       authorize :push_code
 
       def resolve(project_path:, branch:, message:, actions:, **args)
@@ -59,6 +64,7 @@ module Mutations
         result = ::Files::MultiService.new(project, current_user, attributes).execute
 
         {
+          content: actions.pluck(:content),  # rubocop:disable CodeReuse/ActiveRecord because actions is an Array, not a Relation
           commit: (project.repository.commit(result[:result]) if result[:status] == :success),
           commit_pipeline_path: UrlHelpers.new.graphql_etag_pipeline_sha_path(result[:result]),
           errors: Array.wrap(result[:message])

doc/api/graphql/reference/index.md

@@ -882,6 +882,7 @@ Input type: `CommitCreateInput`
 | <a id="mutationcommitcreateclientmutationid"></a>`clientMutationId` | [`String`](#string) | A unique identifier for the client performing the mutation. |
 | <a id="mutationcommitcreatecommit"></a>`commit` | [`Commit`](#commit) | The commit after mutation. |
 | <a id="mutationcommitcreatecommitpipelinepath"></a>`commitPipelinePath` | [`String`](#string) | ETag path for the commit's pipeline. |
+| <a id="mutationcommitcreatecontent"></a>`content` | [`[String!]`](#string) | Contents of the commit. |
 | <a id="mutationcommitcreateerrors"></a>`errors` | [`[String!]!`](#string) | Errors encountered during execution of the mutation. |
 
 ### `Mutation.configureSast`

spec/graphql/mutations/commits/create_spec.rb

@@ -74,6 +74,10 @@ RSpec.describe Mutations::Commits::Create do
           expect(commit_pipeline_path).to match(%r(pipelines/sha/\w+))
         end
 
+        it 'returns the content of the commit' do
+          expect(subject[:content]).to eq(actions.pluck(:content))
+        end
+
         it 'returns a new commit' do
           expect(mutated_commit).to have_attributes(message: message, project: project)
           expect(subject[:errors]).to be_empty
@@ -166,6 +170,7 @@ RSpec.describe Mutations::Commits::Create do
         it 'returns a new commit' do
           expect(mutated_commit).to have_attributes(message: message, project: project)
           expect(subject[:errors]).to be_empty
+          expect(subject[:content]).to eq(actions.pluck(:content))
 
           expect_to_contain_deltas([
             a_hash_including(a_mode: '0', b_mode: '100644', new_file: true, new_path: 'ANOTHER_FILE.md')