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pkg/version: lint and add comments

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This commit is contained in:
unclejack 2014-10-06 18:41:53 +03:00
parent 44264f48e4
commit d29c7e51cf
1 changed files with 24 additions and 18 deletions
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42
pkg/version/version.go
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@ -5,53 +5,59 @@ import (
"strings"
)
// Version provides utility methods for comparing versions.
type Version string
func (me Version) compareTo(other Version) int {
func (v Version) compareTo(other Version) int {
var (
meTab = strings.Split(string(me), ".")
currTab = strings.Split(string(v), ".")
otherTab = strings.Split(string(other), ".")
)
max := len(meTab)
max := len(currTab)
if len(otherTab) > max {
max = len(otherTab)
}
for i := 0; i < max; i++ {
var meInt, otherInt int
var currInt, otherInt int
if len(meTab) > i {
meInt, _ = strconv.Atoi(meTab[i])
if len(currTab) > i {
currInt, _ = strconv.Atoi(currTab[i])
}
if len(otherTab) > i {
otherInt, _ = strconv.Atoi(otherTab[i])
}
if meInt > otherInt {
if currInt > otherInt {
return 1
}
if otherInt > meInt {
if otherInt > currInt {
return -1
}
}
return 0
}
func (me Version) LessThan(other Version) bool {
return me.compareTo(other) == -1
// LessThan checks if a version is less than another version
func (v Version) LessThan(other Version) bool {
return v.compareTo(other) == -1
}
func (me Version) LessThanOrEqualTo(other Version) bool {
return me.compareTo(other) <= 0
// LessThanOrEqualTo checks if a version is less than or equal to another
func (v Version) LessThanOrEqualTo(other Version) bool {
return v.compareTo(other) <= 0
}
func (me Version) GreaterThan(other Version) bool {
return me.compareTo(other) == 1
// GreaterThan checks if a version is greater than another one
func (v Version) GreaterThan(other Version) bool {
return v.compareTo(other) == 1
}
func (me Version) GreaterThanOrEqualTo(other Version) bool {
return me.compareTo(other) >= 0
// GreaterThanOrEqualTo checks ia version is greater than or equal to another
func (v Version) GreaterThanOrEqualTo(other Version) bool {
return v.compareTo(other) >= 0
}
func (me Version) Equal(other Version) bool {
return me.compareTo(other) == 0
// Equal checks if a version is equal to another
func (v Version) Equal(other Version) bool {
return v.compareTo(other) == 0
}