修复

app/services/api/v1/projects/branches/list_service.rb

@@ -15,10 +15,11 @@ class Api::V1::Projects::Branches::ListService < ApplicationService
 
   def call 
     load_gitea_data
-    
-    gitea_data["default_branch"] = gitea_repo_data["default_branch"]
+    load_default_branch
 
-    gitea_data
+    @gitea_data[:default_branch] = @gitea_repo_data["default_branch"]
+
+    @gitea_data
   end
 
   private 
@@ -39,7 +40,7 @@ class Api::V1::Projects::Branches::ListService < ApplicationService
   end
 
   def load_default_branch 
-    @gitea_repo_data = $gitea_client.get_repos_by_owner_repo('yystopf', 'pig') rescue nil 
+    @gitea_repo_data = $gitea_client.get_repos_by_owner_repo(owner, repo) rescue nil 
     raise Error, '获取仓库信息失败！' unless @gitea_data.is_a?(Hash)
   end
 end

app/views/api/v1/projects/branches/_simple_gitea_detail.json.jbuilder

@@ -20,7 +20,7 @@ json.user_can_merge branch['user_can_merge']
 json.commit_id branch['commit']['id']
 json.commit_time_from_now time_from_now(branch['commit']['timestamp'].to_time)
 json.commit_time branch['commit']['timestamp']
-json.default_branch branch['default_branch']
+json.default_branch default_branch || nil
 json.http_url render_http_url(@project)
 json.zip_url render_zip_url(@owner, @project.repository, branch['name'])
 json.tar_url render_tar_url(@owner, @project.repository, branch['name'])

app/views/api/v1/projects/branches/create.json.jbuilder

@@ -1 +1 @@
-json.partial! "api/v1/projects/branches/simple_gitea_detail", branch: @result_object
+json.partial! "api/v1/projects/branches/simple_gitea_detail", branch: @result_object, default_branch: @result_object[:default_branch]

app/views/api/v1/projects/branches/index.json.jbuilder

@@ -1,4 +1,5 @@
 json.total_count @result_object[:total_data].to_i 
 json.branches @result_object[:data].each do |branch| 
-  json.partial! "api/v1/projects/branches/simple_gitea_detail", branch: branch
+  json.partial! "api/v1/projects/branches/simple_gitea_detail", branch: branch, default_branch: @result_object[:default_branch]
+
 end