add some new tools and adjust format

operation/repo/branch.go

@@ -0,0 +1,42 @@
+package repo
+
+import (
+	"context"
+
+	"gitea.com/gitea/gitea-mcp/pkg/gitea"
+	"github.com/mark3labs/mcp-go/mcp"
+
+	gitea_sdk "code.gitea.io/sdk/gitea"
+)
+
+const (
+	CreateBranchToolName = "create_branch"
+)
+
+var (
+	CreateBranchTool = mcp.NewTool(
+		CreateBranchToolName,
+		mcp.WithDescription("Create branch"),
+		mcp.WithString("owner", mcp.Required(), mcp.Description("repository owner"), mcp.DefaultString("")),
+		mcp.WithString("repo", mcp.Required(), mcp.Description("repository name"), mcp.DefaultString("")),
+		mcp.WithString("branch", mcp.Required(), mcp.Description("Name of the branch to create"), mcp.DefaultString("")),
+		mcp.WithString("old_branch", mcp.Description("Name of the old branch to create from"), mcp.DefaultString("")),
+	)
+)
+
+func CreateBranchFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
+	owner := req.Params.Arguments["owner"].(string)
+	repo := req.Params.Arguments["repo"].(string)
+	branch := req.Params.Arguments["branch"].(string)
+	oldBranch := req.Params.Arguments["old_branch"].(string)
+
+	_, _, err := gitea.Client().CreateBranch(owner, repo, gitea_sdk.CreateBranchOption{
+		BranchName:    branch,
+		OldBranchName: oldBranch,
+	})
+	if err != nil {
+		return mcp.NewToolResultError("Create Branch Error"), err
+	}
+
+	return mcp.NewToolResultText("Branch Created"), nil
+}