kodflow/kitsune

package install

import (
    "strconv"
    "strings"
)

func compareVersions(version1, version2 string) bool {
    if version1 == "" || version2 == "" {
        return true
    }

    v1Parts := strings.Split(strings.TrimPrefix(version1, "v"), ".")
    v2Parts := strings.Split(strings.TrimPrefix(version2, "v"), ".")

    v1Nums := make([]int, len(v1Parts))
    v2Nums := make([]int, len(v2Parts))
    for i, part := range v1Parts {
        num, err := strconv.Atoi(part)
        if err != nil {
            return false
        }
        v1Nums[i] = num
    }
    for i, part := range v2Parts {
        num, err := strconv.Atoi(part)
        if err != nil {
            return false
        }
        v2Nums[i] = num
    }

    for i := 0; i < len(v1Nums) && i < len(v2Nums); i++ {
        if v1Nums[i] < v2Nums[i] {
            return true
        } else if v1Nums[i] > v2Nums[i] {
            return false
        }
    }

    return len(v1Nums) > len(v2Nums)
}