Merge pull request #768 from huanggze/log-download

feat: allow to export logs

pkg/utils/stringutils/string.go

@@ -14,12 +14,17 @@ limitations under the License.
 package stringutils
 
 import (
+	"regexp"
 	"strings"
 	"unicode/utf8"
 
 	"github.com/asaskevich/govalidator"
 )
 
+const ansi = "[\u001B\u009B][[\\]()#;?]*(?:(?:(?:[a-zA-Z\\d]*(?:;[a-zA-Z\\d]*)*)?\u0007)|(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PRZcf-ntqry=><~]))"
+
+var re = regexp.MustCompile(ansi)
+
 // Creates an slice of slice values not included in the other given slice.
 func Diff(base, exclude []string) (result []string) {
 	excludeMap := make(map[string]bool)
@@ -83,3 +88,7 @@ func Split(str string, sep string) []string {
 	}
 	return strings.Split(str, sep)
 }
+
+func StripAnsi(str string) string {
+	return re.ReplaceAllString(str, "")
+}