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noise_printer.go
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/
noise_printer.go
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// Copyright © 2023 Ory Corp
// SPDX-License-Identifier: Apache-2.0
package cmdx
import (
"fmt"
"io"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
)
type ConditionalPrinter struct {
w io.Writer
print bool
}
const (
FlagQuiet = "quiet"
)
func RegisterNoiseFlags(flags *pflag.FlagSet) {
flags.BoolP(FlagQuiet, FlagQuiet[:1], false, "Be quiet with output printing.")
}
// NewLoudOutPrinter returns a ConditionalPrinter that
// only prints to cmd.OutOrStdout when --quiet is not set
func NewLoudOutPrinter(cmd *cobra.Command) *ConditionalPrinter {
quiet, err := cmd.Flags().GetBool(FlagQuiet)
if err != nil {
Fatalf(err.Error())
}
return &ConditionalPrinter{
w: cmd.OutOrStdout(),
print: !quiet,
}
}
// NewQuietOutPrinter returns a ConditionalPrinter that
// only prints to cmd.OutOrStdout when --quiet is set
func NewQuietOutPrinter(cmd *cobra.Command) *ConditionalPrinter {
quiet, err := cmd.Flags().GetBool(FlagQuiet)
if err != nil {
Fatalf(err.Error())
}
return &ConditionalPrinter{
w: cmd.OutOrStdout(),
print: quiet,
}
}
// NewLoudErrPrinter returns a ConditionalPrinter that
// only prints to cmd.ErrOrStderr when --quiet is not set
func NewLoudErrPrinter(cmd *cobra.Command) *ConditionalPrinter {
quiet, err := cmd.Flags().GetBool(FlagQuiet)
if err != nil {
Fatalf(err.Error())
}
return &ConditionalPrinter{
w: cmd.ErrOrStderr(),
print: !quiet,
}
}
// NewQuietErrPrinter returns a ConditionalPrinter that
// only prints to cmd.ErrOrStderr when --quiet is set
func NewQuietErrPrinter(cmd *cobra.Command) *ConditionalPrinter {
quiet, err := cmd.Flags().GetBool(FlagQuiet)
if err != nil {
Fatalf(err.Error())
}
return &ConditionalPrinter{
w: cmd.ErrOrStderr(),
print: quiet,
}
}
// NewLoudPrinter returns a ConditionalPrinter that
// only prints to w when --quiet is not set
func NewLoudPrinter(cmd *cobra.Command, w io.Writer) *ConditionalPrinter {
quiet, err := cmd.Flags().GetBool(FlagQuiet)
if err != nil {
Fatalf(err.Error())
}
return &ConditionalPrinter{
w: w,
print: !quiet,
}
}
// NewQuietPrinter returns a ConditionalPrinter that
// only prints to w when --quiet is set
func NewQuietPrinter(cmd *cobra.Command, w io.Writer) *ConditionalPrinter {
quiet, err := cmd.Flags().GetBool(FlagQuiet)
if err != nil {
Fatalf(err.Error())
}
return &ConditionalPrinter{
w: w,
print: quiet,
}
}
func NewConditionalPrinter(w io.Writer, print bool) *ConditionalPrinter {
return &ConditionalPrinter{
w: w,
print: print,
}
}
func (p *ConditionalPrinter) Println(a ...interface{}) (n int, err error) {
if p.print {
return fmt.Fprintln(p.w, a...)
}
return
}
func (p *ConditionalPrinter) Print(a ...interface{}) (n int, err error) {
if p.print {
return fmt.Fprint(p.w, a...)
}
return
}
func (p *ConditionalPrinter) Printf(format string, a ...interface{}) (n int, err error) {
if p.print {
return fmt.Fprintf(p.w, format, a...)
}
return
}