Function NewOutputFormatter

cli/cliui/output.go:29–49

NewOutputFormatter creates a new OutputFormatter with the given formats. The first format is the default format. At least two formats must be provided.

(formats ...OutputFormat)

// NewOutputFormatter creates a new OutputFormatter with the given formats. The
// first format is the default format. At least two formats must be provided.
func NewOutputFormatter(formats ...OutputFormat) *OutputFormatter {
	if len(formats) < 2 {
		panic("at least two output formats must be provided")
	}

	formatIDs := make(map[string]struct{}, len(formats))
	for _, format := range formats {
		if format.ID() == "" {
			panic("output format ID must not be empty")
		}
		if _, ok := formatIDs[format.ID()]; ok {
			panic("duplicate format ID: " + format.ID())
		}
		formatIDs[format.ID()] = struct{}{}
	}

	return &OutputFormatter{
		formats:  formats,
		formatID: formats[0].ID(),
	}
}

// AttachOptions attaches the --output flag to the given command, and any
// additional flags required by the output formatters.