errstringcheck

errstringcheck

errstringcheck checks error message format.

Install

go install github.com/fmatzy/errstringcheck/cmd/errstringcheck@latest

Usage

errstringcheck ./...

Examples

// Bad
fmt.Errof("foo error=%v", err)
fmt.Errof("bar error=%w", err)
fmt.Errof("error %w message", err)

// Good
fmt.Errof("foo error: %v", err)
fmt.Errof("bar error: %w", err)

Options

• -wraponly: Only allow %w verb to format error variable.