yay/pkg/text/print.go
2021-08-11 22:19:55 +02:00

118 lines
2.7 KiB
Go

package text
import (
"fmt"
"os"
"strconv"
"strings"
"syscall"
"github.com/leonelquinteros/gotext"
"golang.org/x/sys/unix"
)
const (
arrow = "==>"
smallArrow = " ->"
opSymbol = "::"
)
var cachedColumnCount = -1
func OperationInfoln(a ...interface{}) {
fmt.Fprint(os.Stdout, append([]interface{}{Bold(Cyan(opSymbol + " ")), boldCode}, a...)...)
fmt.Fprintln(os.Stdout, ResetCode)
}
func OperationInfo(a ...interface{}) {
fmt.Fprint(os.Stdout, append([]interface{}{Bold(Cyan(opSymbol + " ")), boldCode}, a...)...)
fmt.Fprint(os.Stdout, ResetCode)
}
func SprintOperationInfo(a ...interface{}) string {
return fmt.Sprint(append([]interface{}{Bold(Cyan(opSymbol + " ")), boldCode}, a...)...) + ResetCode
}
func Info(a ...interface{}) {
fmt.Fprint(os.Stdout, append([]interface{}{Bold(Green(arrow + " "))}, a...)...)
}
func Infoln(a ...interface{}) {
fmt.Fprintln(os.Stdout, append([]interface{}{Bold(Green(arrow))}, a...)...)
}
func SprintWarn(a ...interface{}) string {
return fmt.Sprint(append([]interface{}{Bold(yellow(smallArrow + " "))}, a...)...)
}
func Warn(a ...interface{}) {
fmt.Fprint(os.Stdout, append([]interface{}{Bold(yellow(smallArrow + " "))}, a...)...)
}
func Warnln(a ...interface{}) {
fmt.Fprintln(os.Stdout, append([]interface{}{Bold(yellow(smallArrow))}, a...)...)
}
func SprintError(a ...interface{}) string {
return fmt.Sprint(append([]interface{}{Bold(Red(smallArrow + " "))}, a...)...)
}
func Error(a ...interface{}) {
fmt.Fprint(os.Stderr, append([]interface{}{Bold(Red(smallArrow + " "))}, a...)...)
}
func Errorln(a ...interface{}) {
fmt.Fprintln(os.Stderr, append([]interface{}{Bold(Red(smallArrow))}, a...)...)
}
func getColumnCount() int {
if cachedColumnCount > 0 {
return cachedColumnCount
}
if count, err := strconv.Atoi(os.Getenv("COLUMNS")); err == nil {
cachedColumnCount = count
return cachedColumnCount
}
if ws, err := unix.IoctlGetWinsize(syscall.Stdout, unix.TIOCGWINSZ); err == nil {
cachedColumnCount = int(ws.Col)
return cachedColumnCount
}
return 80
}
func PrintInfoValue(key string, values ...string) {
// 16 (text) + 1 (:) + 1 ( )
const (
keyLength = 18
delimCount = 2
)
str := fmt.Sprintf(Bold("%-16s: "), key)
if len(values) == 0 || (len(values) == 1 && values[0] == "") {
fmt.Fprintf(os.Stdout, "%s%s\n", str, gotext.Get("None"))
return
}
maxCols := getColumnCount()
cols := keyLength + len(values[0])
str += values[0]
for _, value := range values[1:] {
if maxCols > keyLength && cols+len(value)+delimCount >= maxCols {
cols = keyLength
str += "\n" + strings.Repeat(" ", keyLength)
} else if cols != keyLength {
str += strings.Repeat(" ", delimCount)
cols += delimCount
}
str += value
cols += len(value)
}
fmt.Println(str)
}