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package cli
import (
"fmt"
)
// UiColor is a posix shell color code to use.
type UiColor struct {
Code int
Bold bool
}
// A list of colors that are useful. These are all non-bolded by default.
var (
UiColorNone UiColor = UiColor{-1, false}
UiColorRed = UiColor{31, false}
UiColorGreen = UiColor{32, false}
UiColorYellow = UiColor{33, false}
UiColorBlue = UiColor{34, false}
UiColorMagenta = UiColor{35, false}
UiColorCyan = UiColor{36, false}
)
// ColoredUi is a Ui implementation that colors its output according
// to the given color schemes for the given type of output.
type ColoredUi struct {
OutputColor UiColor
InfoColor UiColor
ErrorColor UiColor
WarnColor UiColor
Ui Ui
}
func (u *ColoredUi) Ask(query string) (string, error) {
return u.Ui.Ask(u.colorize(query, u.OutputColor))
}
func (u *ColoredUi) AskSecret(query string) (string, error) {
return u.Ui.AskSecret(u.colorize(query, u.OutputColor))
}
func (u *ColoredUi) Output(message string) {
u.Ui.Output(u.colorize(message, u.OutputColor))
}
func (u *ColoredUi) Info(message string) {
u.Ui.Info(u.colorize(message, u.InfoColor))
}
func (u *ColoredUi) Error(message string) {
u.Ui.Error(u.colorize(message, u.ErrorColor))
}
func (u *ColoredUi) Warn(message string) {
u.Ui.Warn(u.colorize(message, u.WarnColor))
}
func (u *ColoredUi) colorize(message string, color UiColor) string {
if color.Code == -1 {
return message
}
attr := 0
if color.Bold {
attr = 1
}
return fmt.Sprintf("\033[%d;%dm%s\033[0m", attr, color.Code, message)
}
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