service/library/sutil/sutil.go

71 lines
1.2 KiB
Go

// Copyright 2014 The sutil Author. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package sutil
import (
"fmt"
"strings"
//"crypto/sha1"
)
type VersionCmp struct {
ver string
}
func NewVersionCmp(ver string) *VersionCmp {
v := &VersionCmp{}
v.ver = v.fmtver(ver)
return v
}
func (m *VersionCmp) fmtver(ver string) string {
pvs := strings.Split(ver, ".")
rv := ""
for _, pv := range pvs {
rv += fmt.Sprintf("%020s", pv)
}
return rv
}
func (m *VersionCmp) Min() string {
return m.fmtver("0")
}
func (m *VersionCmp) Max() string {
return m.fmtver("99999999999999999999")
}
func (m *VersionCmp) Lt(ver string) bool {
return m.ver < m.fmtver(ver)
}
func (m *VersionCmp) Lte(ver string) bool {
return m.ver <= m.fmtver(ver)
}
func (m *VersionCmp) Gt(ver string) bool {
return m.ver > m.fmtver(ver)
}
func (m *VersionCmp) Gte(ver string) bool {
return m.ver >= m.fmtver(ver)
}
func (m *VersionCmp) Eq(ver string) bool {
return m.ver == m.fmtver(ver)
}
func (m *VersionCmp) Ne(ver string) bool {
return m.ver != m.fmtver(ver)
}
func (m *VersionCmp) GetFormatVersion() string {
return m.ver
}