mirror of
https://github.com/go-gitea/gitea.git
synced 2024-12-04 14:46:57 -05:00
160 lines
3.6 KiB
Go
160 lines
3.6 KiB
Go
|
package version
|
||
|
|
||
|
import (
|
||
|
"regexp"
|
||
|
"strconv"
|
||
|
"strings"
|
||
|
)
|
||
|
|
||
|
var regexpSigns = regexp.MustCompile(`[_\-+]`)
|
||
|
var regexpDotBeforeDigit = regexp.MustCompile(`([^.\d]+)`)
|
||
|
var regexpMultipleDots = regexp.MustCompile(`\.{2,}`)
|
||
|
|
||
|
var specialForms = map[string]int{
|
||
|
"dev": -6,
|
||
|
"alpha": -5,
|
||
|
"a": -5,
|
||
|
"beta": -4,
|
||
|
"b": -4,
|
||
|
"RC": -3,
|
||
|
"rc": -3,
|
||
|
"#": -2,
|
||
|
"p": 1,
|
||
|
"pl": 1,
|
||
|
}
|
||
|
|
||
|
// Compares two version number strings, for a particular relationship
|
||
|
//
|
||
|
// Usage
|
||
|
// version.Compare("2.3.4", "v3.1.2", "<")
|
||
|
// Returns: true
|
||
|
//
|
||
|
// version.Compare("1.0rc1", "1.0", ">=")
|
||
|
// Returns: false
|
||
|
func Compare(version1, version2, operator string) bool {
|
||
|
version1N := Normalize(version1)
|
||
|
version2N := Normalize(version2)
|
||
|
|
||
|
return CompareNormalized(version1N, version2N, operator)
|
||
|
}
|
||
|
|
||
|
// Compares two normalizated version number strings, for a particular relationship
|
||
|
//
|
||
|
// The function first replaces _, - and + with a dot . in the version strings
|
||
|
// and also inserts dots . before and after any non number so that for example
|
||
|
// '4.3.2RC1' becomes '4.3.2.RC.1'.
|
||
|
//
|
||
|
// Then it splits the results like if you were using Split(version, '.').
|
||
|
// Then it compares the parts starting from left to right. If a part contains
|
||
|
// special version strings these are handled in the following order: any string
|
||
|
// not found in this list:
|
||
|
// < dev < alpha = a < beta = b < RC = rc < # < pl = p.
|
||
|
//
|
||
|
// Usage
|
||
|
// version.CompareNormalized("1.0-dev", "1.0", "<")
|
||
|
// Returns: true
|
||
|
//
|
||
|
// version.CompareNormalized("1.0rc1", "1.0", ">=")
|
||
|
// Returns: false
|
||
|
//
|
||
|
// version.CompareNormalized("1.0", "1.0b1", "ge")
|
||
|
// Returns: true
|
||
|
func CompareNormalized(version1, version2, operator string) bool {
|
||
|
compare := CompareSimple(version1, version2)
|
||
|
|
||
|
switch {
|
||
|
case operator == ">" || operator == "gt":
|
||
|
return compare > 0
|
||
|
case operator == ">=" || operator == "ge":
|
||
|
return compare >= 0
|
||
|
case operator == "<=" || operator == "le":
|
||
|
return compare <= 0
|
||
|
case operator == "==" || operator == "=" || operator == "eq":
|
||
|
return compare == 0
|
||
|
case operator == "<>" || operator == "!=" || operator == "ne":
|
||
|
return compare != 0
|
||
|
case operator == "" || operator == "<" || operator == "lt":
|
||
|
return compare < 0
|
||
|
}
|
||
|
|
||
|
return false
|
||
|
}
|
||
|
|
||
|
// Compares two normalizated version number strings
|
||
|
//
|
||
|
// Just the same of CompareVersion but return a int result, 0 if both version
|
||
|
// are equal, 1 if the right side is bigger and -1 if the right side is lower
|
||
|
//
|
||
|
// Usage
|
||
|
// version.CompareSimple("1.2", "1.0.1")
|
||
|
// Returns: 1
|
||
|
//
|
||
|
// version.CompareSimple("1.0rc1", "1.0")
|
||
|
// Returns: -1
|
||
|
func CompareSimple(version1, version2 string) int {
|
||
|
var x, r, l int = 0, 0, 0
|
||
|
|
||
|
v1, v2 := prepVersion(version1), prepVersion(version2)
|
||
|
len1, len2 := len(v1), len(v2)
|
||
|
|
||
|
if len1 > len2 {
|
||
|
x = len1
|
||
|
} else {
|
||
|
x = len2
|
||
|
}
|
||
|
|
||
|
for i := 0; i < x; i++ {
|
||
|
if i < len1 && i < len2 {
|
||
|
if v1[i] == v2[i] {
|
||
|
continue
|
||
|
}
|
||
|
}
|
||
|
|
||
|
r = 0
|
||
|
if i < len1 {
|
||
|
r = numVersion(v1[i])
|
||
|
}
|
||
|
|
||
|
l = 0
|
||
|
if i < len2 {
|
||
|
l = numVersion(v2[i])
|
||
|
}
|
||
|
|
||
|
if r < l {
|
||
|
return -1
|
||
|
} else if r > l {
|
||
|
return 1
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return 0
|
||
|
}
|
||
|
|
||
|
func prepVersion(version string) []string {
|
||
|
if len(version) == 0 {
|
||
|
return []string{""}
|
||
|
}
|
||
|
|
||
|
version = regexpSigns.ReplaceAllString(version, ".")
|
||
|
version = regexpDotBeforeDigit.ReplaceAllString(version, ".$1.")
|
||
|
version = regexpMultipleDots.ReplaceAllString(version, ".")
|
||
|
|
||
|
return strings.Split(version, ".")
|
||
|
}
|
||
|
|
||
|
func numVersion(value string) int {
|
||
|
if value == "" {
|
||
|
return 0
|
||
|
}
|
||
|
|
||
|
if number, err := strconv.Atoi(value); err == nil {
|
||
|
return number
|
||
|
}
|
||
|
|
||
|
if special, ok := specialForms[value]; ok {
|
||
|
return special
|
||
|
}
|
||
|
|
||
|
return -7
|
||
|
}
|