1 files changed, 39 insertions, 0 deletions
diff --git a/app/services/files/update_service.rb b/app/services/files/update_service.rb
new file mode 100644
index 00000000000..20ca1ff37d5
--- /dev/null
+++ b/app/services/files/update_service.rb
@@ -0,0 +1,39 @@
+require_relative "base_context"
+
+module Files
+  class UpdateService < BaseService
+    def execute
+      allowed = if project.protected_branch?(ref)
+                  can?(current_user, :push_code_to_protected_branches, project)
+                else
+                  can?(current_user, :push_code, project)
+                end
+
+      unless allowed
+        return error("You are not allowed to push into this branch")
+      end
+
+      unless repository.branch_names.include?(ref)
+        return error("You can only create files if you are on top of a branch")
+      end
+
+      blob = repository.blob_at(ref, path)
+
+      unless blob
+        return error("You can only edit text files")
+      end
+
+      new_file_action = Gitlab::Satellite::EditFileAction.new(current_user, project, ref, path)
+      created_successfully = new_file_action.commit!(
+        params[:content],
+        params[:commit_message]
+      )
+
+      if created_successfully
+        success
+      else
+        error("Your changes could not be committed, because the file has been changed")
+      end
+    end
+  end
+end