forked from wallix/awless
/
version.go
115 lines (95 loc) · 2.29 KB
/
version.go
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/*
Copyright 2017 WALLIX
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package config
import (
"bytes"
"fmt"
"strconv"
"strings"
)
var (
Version = "0.0.13"
BuildFor string
buildSha, buildDate, buildArch, buildOS string
)
type BuildInfo struct {
Version, Sha, Date, Arch, OS, For string
}
func (b BuildInfo) String() string {
var buff bytes.Buffer
buff.WriteString(fmt.Sprintf("version=%s", b.Version))
if b.Sha != "" {
buff.WriteString(fmt.Sprintf(", commit=%s", b.Sha))
}
if b.Date != "" {
buff.WriteString(fmt.Sprintf(", build-date=%s", b.Date))
}
if b.Arch != "" {
buff.WriteString(fmt.Sprintf(", build-arch=%s", b.Arch))
}
if b.OS != "" {
buff.WriteString(fmt.Sprintf(", build-os=%s", b.OS))
}
if b.For != "" {
buff.WriteString(fmt.Sprintf(", build-for=%s", b.For))
}
return buff.String()
}
var CurrentBuildInfo = BuildInfo{
Version: Version,
For: BuildFor,
Sha: buildSha,
Date: buildDate,
Arch: buildArch,
OS: buildOS,
}
const semverLen = 3
type semver [semverLen]int
func IsUpgrade(current, latest string) bool {
current = strings.TrimPrefix(current, "v")
latest = strings.TrimPrefix(latest, "v")
dot := func(r rune) bool {
return r == '.'
}
cFields := strings.FieldsFunc(current, dot)
lFields := strings.FieldsFunc(latest, dot)
if len(cFields) != semverLen || len(lFields) != semverLen {
return false
}
currents := new(semver)
for i, f := range cFields {
num, err := strconv.Atoi(f)
if err != nil {
return false
}
currents[i] = num
}
latests := new(semver)
for i, f := range lFields {
num, err := strconv.Atoi(f)
if err != nil {
return false
}
latests[i] = num
}
for i := 0; i < semverLen; i++ {
if latests[i] > currents[i] {
return true
} else if latests[i] == currents[i] {
continue
} else {
return false
}
}
return false
}