handler

type DefaultSession struct {
	// contains filtered or unexported fields
}

type Input struct {
	// Args holds all unbound arguments except for the first "--" if present.
	Args []string

	// ArgsBeforeDash holds the subset of Args located before the first "--" if present,
	// or the same elements as Args if absent.
	ArgsBeforeDash []string

	// ArgsAfterDash holds the subset of Args located after the first "--" if present.
	ArgsAfterDash []string
}

type Mixin interface {
	// BindCobraFlags gives each mixin the opportunity to define its own flags.
	BindCobraFlags(cmd *cobra.Command) (requiredFlags []string)

	// Name should identify the mixin for use in error/log messages.
	//
	// Ideally it is short, e.g. like a package name.
	Name() string
}

type PostRun interface {
	PostRun(ctx context.Context)
}

type PreRun interface {
	PreRun(ctx context.Context, args []string) error
}

type Session interface {
	// Err returns the standard error destination.
	Err() io.Writer

	// In returns the standard input source.
	In() io.Reader

	// OnSignal starts a goroutine which runs the provided function every time the signal
	// is received. It returns a function to end the goroutine.
	OnSignal(s os.Signal, do func(os.Signal)) (cancel func())

	// Out returns the standard output destination.
	Out() io.Writer

	// SetErr assigns the standard error destination.
	SetErr(io.Writer)

	// SetIn assigns the standard input source.
	SetIn(io.Reader)

	// SetOut assigns the standard error destination.
	SetOut(io.Writer)

	// ExitOnError exits the program if the error is non-nil and prints the error in full format (%+v).
	ExitOnErr(err error, msg string, code int)

	// ExitOnErrorShort exits the program if the error is non-nil and prints the error's string value.
	ExitOnErrShort(err error, msg string, code int)

	// ExitOnErrsShort exits the program if the slice is non-empty and prints each error's string value.
	ExitOnErrsShort(errs []error, code int)

	// Exitf exits the program with a formatted message.
	Exitf(code int, format string, a ...interface{})
}