update workflow

.github/workflows/deploy-public.yml

@@ -89,30 +89,33 @@ jobs:
             git commit -m "Initial public branch from main ${COMMIT_HASH}"
             git push origin public
           else
-            # 确保临时目录存在
-            mkdir -p temp_public
+            # 保存构建产物到临时目录
+            mkdir -p "${RUNNER_TEMP}/public_content"
+            cp -r public/* "${RUNNER_TEMP}/public_content/"
             
-            # 保存构建产物
-            cp -r public/* temp_public/
-            
-            # 切换分支
+            # 切换到 public 分支
             git fetch origin public
-            git checkout public || git checkout -b public --track origin/public
+            if git rev-parse --verify origin/public >/dev/null 2>&1; then
+              git switch public
+            else
+              git switch --orphan public
+              git commit --allow-empty -m "Initial empty commit"
+            fi
             
-            # 清理当前目录（保留 .git）
-            find . -mindepth 1 -maxdepth 1 ! -name '.git' -exec rm -rf {} +
+            # 清理工作目录
+            git rm -rf .
+            git clean -fdx
             
             # 恢复构建产物
-            cp -r temp_public/* .
-            rm -rf temp_public
+            cp -r "${RUNNER_TEMP}/public_content/"* .
+            rm -rf "${RUNNER_TEMP}/public_content"
             
-            git add .
-            
-            if git diff --staged --quiet; then
+            # 提交更改
+            git add -A
+            if ! git diff --staged --quiet; then
+              git commit -m "Update from main ${COMMIT_HASH}" -m "Source commit message:" -m "${COMMIT_MSG}"
+              git push origin public
+            else
               echo "No changes detected"
-              exit 0
             fi
-            
-            git commit -m "Update from main ${COMMIT_HASH}" -m "Source commit message:" -m "${COMMIT_MSG}"
-            git push origin public
           fi