command

type BoolFlag ¶

type BoolFlag bool

BoolFlag is the default value of a bool flag.

func (v BoolFlag) Define(b *strings.Builder, set *flag.FlagSet, p any, name, usage string)

type Command ¶

type Command interface {
	Parse(arguments []string) error

	// MustParse determines exit outcomes for Parse errors
	// and calls handleError if [HandlerFunc] returns a non-nil error.
	MustParse(arguments []string, handleError func(error))
	// contains filtered or unexported methods
}

func New(output io.Writer, logf LogFunc, name string, early HandlerFunc) Command

type Flag ¶

type Flag[T any] interface {
	// Flag defines a generic flag type in Node's flag set.
	Flag(p any, name string, value FlagDefiner, usage string) T
}

type FlagDefiner ¶

type FlagDefiner interface {
	// Define defines the flag in set.
	Define(b *strings.Builder, set *flag.FlagSet, p any, name, usage string)
}

FlagDefiner is a deferred flag definer value, usually encapsulating the default value.

type FlagError ¶

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

FlagError wraps errors returned by flag.

func (e FlagError) Is(target error) bool

func (e FlagError) Success() bool

type HandlerFunc ¶

type HandlerFunc = func(args []string) error

HandlerFunc is called when matching a directly handled subcommand tree.

type IntFlag ¶

type IntFlag int

IntFlag is the default value of an int flag.

func (v IntFlag) Define(b *strings.Builder, set *flag.FlagSet, p any, name, usage string)

type LogFunc ¶

type LogFunc = func(format string, a ...any)

LogFunc is the function signature of a printf function.

type Node ¶

type Node baseNode[Node]

type RepeatableFlag ¶

type RepeatableFlag []string

RepeatableFlag implements an ordered, repeatable string flag.

func (r *RepeatableFlag) Define(b *strings.Builder, set *flag.FlagSet, _ any, name, usage string)

func (r *RepeatableFlag) Set(v string) error

func (r *RepeatableFlag) String() string

type StringFlag ¶

type StringFlag string

StringFlag is the default value of a string flag.

func (v StringFlag) Define(b *strings.Builder, set *flag.FlagSet, p any, name, usage string)