func ForkRepository()

in pkg/github/repositories.go [489:557]
62 lines of code
13 McCabe index (conditional complexity)

func ForkRepository(getClient GetClientFn, t translations.TranslationHelperFunc) (tool mcp.Tool, handler server.ToolHandlerFunc) {
	return mcp.NewTool("fork_repository",
			mcp.WithDescription(t("TOOL_FORK_REPOSITORY_DESCRIPTION", "Fork a GitHub repository to your account or specified organization")),
			mcp.WithToolAnnotation(mcp.ToolAnnotation{
				Title:        t("TOOL_FORK_REPOSITORY_USER_TITLE", "Fork repository"),
				ReadOnlyHint: false,
			}),
			mcp.WithString("owner",
				mcp.Required(),
				mcp.Description("Repository owner"),
			),
			mcp.WithString("repo",
				mcp.Required(),
				mcp.Description("Repository name"),
			),
			mcp.WithString("organization",
				mcp.Description("Organization to fork to"),
			),
		),
		func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			owner, err := requiredParam[string](request, "owner")
			if err != nil {
				return mcp.NewToolResultError(err.Error()), nil
			}
			repo, err := requiredParam[string](request, "repo")
			if err != nil {
				return mcp.NewToolResultError(err.Error()), nil
			}
			org, err := OptionalParam[string](request, "organization")
			if err != nil {
				return mcp.NewToolResultError(err.Error()), nil
			}

			opts := &github.RepositoryCreateForkOptions{}
			if org != "" {
				opts.Organization = org
			}

			client, err := getClient(ctx)
			if err != nil {
				return nil, fmt.Errorf("failed to get GitHub client: %w", err)
			}
			forkedRepo, resp, err := client.Repositories.CreateFork(ctx, owner, repo, opts)
			if err != nil {
				// Check if it's an acceptedError. An acceptedError indicates that the update is in progress,
				// and it's not a real error.
				if resp != nil && resp.StatusCode == http.StatusAccepted && isAcceptedError(err) {
					return mcp.NewToolResultText("Fork is in progress"), nil
				}
				return nil, fmt.Errorf("failed to fork repository: %w", err)
			}
			defer func() { _ = resp.Body.Close() }()

			if resp.StatusCode != http.StatusAccepted {
				body, err := io.ReadAll(resp.Body)
				if err != nil {
					return nil, fmt.Errorf("failed to read response body: %w", err)
				}
				return mcp.NewToolResultError(fmt.Sprintf("failed to fork repository: %s", string(body))), nil
			}

			r, err := json.Marshal(forkedRepo)
			if err != nil {
				return nil, fmt.Errorf("failed to marshal response: %w", err)
			}

			return mcp.NewToolResultText(string(r)), nil
		}
}