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lazygit/pkg/utils/color.go
2022-03-19 12:12:57 +11:00

65 lines
1.2 KiB
Go

package utils
import (
"regexp"
"sync"
"github.com/gookit/color"
"github.com/jesseduffield/lazygit/pkg/gui/style"
)
var (
decoloriseCache = make(map[string]string)
decoloriseMutex sync.RWMutex
)
// Decolorise strips a string of color
func Decolorise(str string) string {
decoloriseMutex.RLock()
val := decoloriseCache[str]
decoloriseMutex.RUnlock()
if val != "" {
return val
}
re := regexp.MustCompile(`\x1B\[([0-9]{1,3}(;[0-9]{1,3})*)?[mGK]`)
ret := re.ReplaceAllString(str, "")
decoloriseMutex.Lock()
decoloriseCache[str] = ret
decoloriseMutex.Unlock()
return ret
}
func IsValidHexValue(v string) bool {
if len(v) != 4 && len(v) != 7 {
return false
}
if v[0] != '#' {
return false
}
for _, char := range v[1:] {
switch char {
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', 'A', 'B', 'C', 'D', 'E', 'F':
continue
default:
return false
}
}
return true
}
func SetCustomColors(customColors map[string]string) map[string]style.TextStyle {
colors := make(map[string]style.TextStyle)
for key, colorSequence := range customColors {
style := style.New().SetFg(style.NewRGBColor(color.HEX(colorSequence, false)))
colors[key] = style
}
return colors
}