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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 63363f2d49
commit 6f66d8a30f
1 changed files with 24 additions and 18 deletions
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42
version/version.go
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@ -5,53 +5,59 @@ import (
"strings" "strings"
) )
// Version provides utility methods for comparing versions.
type Version string type Version string
func (me Version) compareTo(other Version) int { func (v Version) compareTo(other Version) int {
var ( var (
meTab = strings.Split(string(me), ".") currTab = strings.Split(string(v), ".")
otherTab = strings.Split(string(other), ".") otherTab = strings.Split(string(other), ".")
) )
max := len(meTab) max := len(currTab)
if len(otherTab) > max { if len(otherTab) > max {
max = len(otherTab) max = len(otherTab)
} }
for i := 0; i < max; i++ { for i := 0; i < max; i++ {
var meInt, otherInt int var currInt, otherInt int
if len(meTab) > i { if len(currTab) > i {
meInt, _ = strconv.Atoi(meTab[i]) currInt, _ = strconv.Atoi(currTab[i])
} }
if len(otherTab) > i { if len(otherTab) > i {
otherInt, _ = strconv.Atoi(otherTab[i]) otherInt, _ = strconv.Atoi(otherTab[i])
} }
if meInt > otherInt { if currInt > otherInt {
return 1 return 1
} }
if otherInt > meInt { if otherInt > currInt {
return -1 return -1
} }
} }
return 0 return 0
} }
func (me Version) LessThan(other Version) bool { // LessThan checks if a version is less than another version
return me.compareTo(other) == -1 func (v Version) LessThan(other Version) bool {
return v.compareTo(other) == -1
} }
func (me Version) LessThanOrEqualTo(other Version) bool { // LessThanOrEqualTo checks if a version is less than or equal to another
return me.compareTo(other) <= 0 func (v Version) LessThanOrEqualTo(other Version) bool {
return v.compareTo(other) <= 0
} }
func (me Version) GreaterThan(other Version) bool { // GreaterThan checks if a version is greater than another one
return me.compareTo(other) == 1 func (v Version) GreaterThan(other Version) bool {
return v.compareTo(other) == 1
} }
func (me Version) GreaterThanOrEqualTo(other Version) bool { // GreaterThanOrEqualTo checks ia version is greater than or equal to another
return me.compareTo(other) >= 0 func (v Version) GreaterThanOrEqualTo(other Version) bool {
return v.compareTo(other) >= 0
} }
func (me Version) Equal(other Version) bool { // Equal checks if a version is equal to another
return me.compareTo(other) == 0 func (v Version) Equal(other Version) bool {
return v.compareTo(other) == 0
} }