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package cli
import (
"fmt"
"io"
"strings"
"gopkg.in/yaml.v3"
)
type marshaler interface {
marshal(any, io.Writer) error
}
type rawMarshaler struct {
m marshaler
checkNul bool
}
func (m *rawMarshaler) marshal(v any, w io.Writer) error {
if s, ok := v.(string); ok {
if m.checkNul && strings.ContainsRune(s, '\x00') {
return fmt.Errorf("cannot output a string containing NUL character: %q", s)
}
_, err := w.Write([]byte(s))
return err
}
return m.m.marshal(v, w)
}
func yamlFormatter(indent *int) *yamlMarshaler {
return &yamlMarshaler{indent}
}
type yamlMarshaler struct {
indent *int
}
func (m *yamlMarshaler) marshal(v any, w io.Writer) error {
enc := yaml.NewEncoder(w)
if i := m.indent; i != nil {
enc.SetIndent(*i)
} else {
enc.SetIndent(2)
}
if err := enc.Encode(v); err != nil {
return err
}
return enc.Close()
}
|
