Support IPv6 in minio command line (#6947)

Fixes #6946

pkg/ellipses/ellipses.go

@@ -26,7 +26,7 @@ import (
 
 var (
 	// Regex to extract ellipses syntax inputs.
-	regexpEllipses = regexp.MustCompile(`(.*)({[0-9]*\.\.\.[0-9]*})(.*)`)
+	regexpEllipses = regexp.MustCompile(`(.*)({[0-9a-z]*\.\.\.[0-9a-z]*})(.*)`)
 
 	// Ellipses constants
 	openBraces  = "{"
@@ -53,13 +53,24 @@ func parseEllipsesRange(pattern string) (seq []string, err error) {
 		return nil, errors.New("Invalid argument")
 	}
 
+	var hexadecimal bool
 	var start, end uint64
 	if start, err = strconv.ParseUint(ellipsesRange[0], 10, 64); err != nil {
-		return nil, err
+		// Look for hexadecimal conversions if any.
+		start, err = strconv.ParseUint(ellipsesRange[0], 16, 64)
+		if err != nil {
+			return nil, err
+		}
+		hexadecimal = true
 	}
 
 	if end, err = strconv.ParseUint(ellipsesRange[1], 10, 64); err != nil {
-		return nil, err
+		// Look for hexadecimal conversions if any.
+		end, err = strconv.ParseUint(ellipsesRange[1], 16, 64)
+		if err != nil {
+			return nil, err
+		}
+		hexadecimal = true
 	}
 
 	if start > end {
@@ -68,9 +79,17 @@ func parseEllipsesRange(pattern string) (seq []string, err error) {
 
 	for i := start; i <= end; i++ {
 		if strings.HasPrefix(ellipsesRange[0], "0") && len(ellipsesRange[0]) > 1 || strings.HasPrefix(ellipsesRange[1], "0") {
-			seq = append(seq, fmt.Sprintf(fmt.Sprintf("%%0%dd", len(ellipsesRange[1])), i))
+			if hexadecimal {
+				seq = append(seq, fmt.Sprintf(fmt.Sprintf("%%0%dx", len(ellipsesRange[1])), i))
+			} else {
+				seq = append(seq, fmt.Sprintf(fmt.Sprintf("%%0%dd", len(ellipsesRange[1])), i))
+			}
 		} else {
-			seq = append(seq, fmt.Sprintf("%d", i))
+			if hexadecimal {
+				seq = append(seq, fmt.Sprintf("%x", i))
+			} else {
+				seq = append(seq, fmt.Sprintf("%d", i))
+			}
 		}
 	}
 

pkg/ellipses/ellipses_test.go

@@ -96,6 +96,7 @@ func TestHasEllipses(t *testing.T) {
 			true,
 		},
 		{
+
 			[]string{
 				"mydisk-{1...4}{1..2.}",
 			},
@@ -201,6 +202,11 @@ func TestFindEllipsesPatterns(t *testing.T) {
 			false,
 			0,
 		},
+		{
+			"{f...z}",
+			false,
+			0,
+		},
 		// Test for valid input.
 		{
 			"{1...64}",
@@ -222,6 +228,11 @@ func TestFindEllipsesPatterns(t *testing.T) {
 			true,
 			36,
 		},
+		{
+			"{1...a}",
+			true,
+			10,
+		},
 	}
 
 	for i, testCase := range testCases {