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package gitpb
import (
"errors"
"fmt"
"strconv"
"strings"
"go.wit.com/log"
)
// newver(0.25.101-1+b10)
// a == 0
// b == 25
// c == 101
// pnum == 1
// bnum == 10
type Vers struct {
a int // major
b int
c int
pnum int
bnum int
}
func TokenVersions(ver string) (*Vers, error) {
var err error
tok := new(Vers)
var golang bool
if strings.HasPrefix(ver, "v") {
golang = true
ver = strings.TrimPrefix(ver, "v")
}
parts := strings.Split(ver, "-")
if len(parts) == 0 {
return nil, errors.New("version was empty")
}
abc := strings.Split(parts[0], ".")
if len(abc) != 3 {
return nil, errors.New("abc != 3 parts")
}
tok.a, err = strconv.Atoi(abc[0])
if err != nil {
return nil, errors.New("tok.a failed")
}
tok.b, err = strconv.Atoi(abc[1])
if err != nil {
return nil, errors.New("tok.b failed")
}
tok.c, err = strconv.Atoi(abc[2])
if err != nil {
return nil, errors.New("tok.c failed")
}
if golang {
return tok, nil
}
if len(parts) != 2 {
return nil, errors.Join(err, errors.New("len != 2 parts"))
}
bb := strings.Split(parts[1], "+")
if len(bb) != 2 {
return nil, errors.Join(err, errors.New(fmt.Sprintf("parts(%v) abc(%v)", parts, abc)))
}
tok.pnum, err = strconv.Atoi(bb[0])
if err != nil {
return nil, errors.Join(err, errors.New(fmt.Sprintf("parts(%v) abc(%v)", parts, abc)))
}
tok.bnum, err = strconv.Atoi(strings.TrimPrefix(bb[1], "b"))
if err != nil {
return nil, errors.Join(err, errors.New(fmt.Sprintf("parts(%v) abc(%v)", parts, abc)))
}
return tok, nil
}
func CompareVers(atok *Vers, btok *Vers) int {
if (atok == nil) || (btok == nil) {
return 0
}
// CHECK A
if atok.a > btok.a {
return 1
}
if btok.a > atok.a {
return -1
}
// CHECK B
if atok.b > btok.b {
return 1
}
if btok.b > atok.b {
return -1
}
// CHECK C
if atok.c > btok.c {
return 1
}
if btok.c > atok.c {
return -1
}
// CHECK PATCH #
if atok.pnum > btok.pnum {
return 1
}
if btok.pnum > atok.pnum {
return -1
}
// CHECK BUILD #
if atok.bnum > btok.bnum {
return 1
}
if btok.bnum > atok.bnum {
return -1
}
// CHECK IS EQUAL
if atok.bnum == btok.bnum {
return 0
}
return 0 // compare should not have gotten here (%v) to curver (%v)", newver, curver))
}
// compares newver(0.25.101-1+b10) curver(0.25.101-5+b1)
// returns true only if it's newer. returns false if equal
// used for .deb mirrors
func NewerVersion(newver string, curver string) (bool, error) {
newtok, err1 := TokenVersions(newver)
curtok, err2 := TokenVersions(curver)
if (newtok == nil) || (curtok == nil) {
s := log.Sprintf("token on the railroad failed (%v) to curver (%v) err(%v)(%v)", newtok, curtok, err1, err2)
return false, errors.New(s)
}
// CHECK A
if newtok.a > curtok.a {
return true, nil
}
if curtok.a > newtok.a {
return false, errors.New(log.Sprintf("A.x.x lower (%v) to curver (%v)", newver, curver))
}
// CHECK B
if newtok.b > curtok.b {
return true, nil
}
if curtok.b > newtok.b {
return false, errors.New(log.Sprintf("x.B.x lower (%v) to curver (%v)", newver, curver))
}
// CHECK C
if newtok.c > curtok.c {
return true, nil
}
if curtok.c > newtok.c {
return false, errors.New(log.Sprintf("x.x.C lower (%v) to curver (%v)", newver, curver))
}
// CHECK PATCH #
if newtok.pnum > curtok.pnum {
return true, nil
}
if curtok.pnum > newtok.pnum {
return false, errors.New(log.Sprintf("patch # lower (%v) to curver (%v)", newver, curver))
}
// CHECK BUILD #
if newtok.bnum > curtok.bnum {
return true, nil
}
if curtok.bnum > newtok.bnum {
return false, errors.New(log.Sprintf("build # lower (%v) to curver (%v)", newver, curver))
}
// CHECK IS EQUAL
if curtok.bnum == newtok.bnum {
return false, errors.New(log.Sprintf("new is equal (%v) to curver (%v)", newver, curver))
}
return false, errors.New(log.Sprintf("compare should not have gotten here (%v) to curver (%v)", newver, curver))
}
|
