fix lint

pkg/utils/version_compare.go

@@ -0,0 +1,114 @@
+package utils
+
+import "strconv"
+
+func compareVersionNumbers(left, right VersionInfo) int {
+	maxLen := len(left.Numbers)
+	if len(right.Numbers) > maxLen {
+		maxLen = len(right.Numbers)
+	}
+	for index := 0; index < maxLen; index++ {
+		leftValue := 0
+		rightValue := 0
+		if index < len(left.Numbers) {
+			leftValue = left.Numbers[index]
+		}
+		if index < len(right.Numbers) {
+			rightValue = right.Numbers[index]
+		}
+		if leftValue < rightValue {
+			return -1
+		}
+		if leftValue > rightValue {
+			return 1
+		}
+	}
+	return 0
+}
+
+func compareGitDescribeDistance(left, right VersionInfo) int {
+	if left.GitDescribeDistance == right.GitDescribeDistance {
+		return 0
+	}
+	if left.GitDescribeDistance < right.GitDescribeDistance {
+		return -1
+	}
+	return 1
+}
+
+func compareGitDescribeTails(left, right VersionInfo) int {
+	maxLen := len(left.GitDescribeTail)
+	if len(right.GitDescribeTail) > maxLen {
+		maxLen = len(right.GitDescribeTail)
+	}
+	for index := 0; index < maxLen; index++ {
+		if index >= len(left.GitDescribeTail) {
+			return -1
+		}
+		if index >= len(right.GitDescribeTail) {
+			return 1
+		}
+		if left.GitDescribeTail[index] < right.GitDescribeTail[index] {
+			return -1
+		}
+		if left.GitDescribeTail[index] > right.GitDescribeTail[index] {
+			return 1
+		}
+	}
+	return 0
+}
+
+func comparePrereleaseIdentifiers(left, right VersionInfo) int {
+	if len(left.Prerelease) == 0 && len(right.Prerelease) == 0 {
+		return 0
+	}
+	if len(left.Prerelease) == 0 {
+		return 1
+	}
+	if len(right.Prerelease) == 0 {
+		return -1
+	}
+
+	maxLen := len(left.Prerelease)
+	if len(right.Prerelease) > maxLen {
+		maxLen = len(right.Prerelease)
+	}
+	for index := 0; index < maxLen; index++ {
+		if index >= len(left.Prerelease) {
+			return -1
+		}
+		if index >= len(right.Prerelease) {
+			return 1
+		}
+		if result := comparePrereleasePart(left.Prerelease[index], right.Prerelease[index]); result != 0 {
+			return result
+		}
+	}
+	return 0
+}
+
+func comparePrereleasePart(leftPart, rightPart string) int {
+	leftNumber, leftErr := strconv.Atoi(leftPart)
+	rightNumber, rightErr := strconv.Atoi(rightPart)
+	switch {
+	case leftErr == nil && rightErr == nil:
+		if leftNumber < rightNumber {
+			return -1
+		}
+		if leftNumber > rightNumber {
+			return 1
+		}
+	case leftErr == nil:
+		return -1
+	case rightErr == nil:
+		return 1
+	default:
+		if leftPart < rightPart {
+			return -1
+		}
+		if leftPart > rightPart {
+			return 1
+		}
+	}
+	return 0
+}