From 1097e9e700a127f445ee4d138af2d51435390d43 Mon Sep 17 00:00:00 2001
From: yanghui <yanghui@aiotlink.com>
Date: 星期五, 14 五月 2021 16:01:50 +0800
Subject: [PATCH] add compare
---
version.go | 97 ++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 96 insertions(+), 1 deletions(-)
diff --git a/version.go b/version.go
index 73f0341..627ecf5 100644
--- a/version.go
+++ b/version.go
@@ -1,16 +1,25 @@
-package version
+package vaversion
import (
"encoding/json"
+ "errors"
"flag"
"fmt"
+ "math"
"os"
+ "strconv"
+ "strings"
+)
+
+type (
+ VaVersion int64
)
var (
BuildVersion string
BuildTime string
CommitSha1 string
+ AppName string
)
func init() {
@@ -22,6 +31,7 @@
info["version"] = BuildVersion
info["build"] = BuildTime
info["commit"] = CommitSha1
+ info["name"] = AppName
b, err := json.Marshal(info)
if nil != err {
@@ -33,3 +43,88 @@
}
}
}
+
+func (v VaVersion) Valid() bool {
+ if v < 0 {
+ return false
+ }
+
+ majorVersion := v >> 32
+ if majorVersion > math.MaxUint16 {
+ return false
+ }
+
+ return true
+}
+
+func (v VaVersion) Compare(v1 VaVersion) (int, error) {
+ if !v.Valid() {
+ return 0, errors.New("Invalid VaVersion left value")
+ }
+
+ if !v1.Valid() {
+ return 0, errors.New("Invalid VaVersion right value")
+ }
+
+ if v > v1 {
+ return 1, nil
+ }
+
+ if v < v1 {
+ return -1, nil
+ }
+
+ return 0, nil
+}
+
+func (v VaVersion) String() (string, error) {
+ if !v.Valid() {
+ return "", errors.New("Invalid VaVersion value")
+ }
+
+ majorVersion := (v >> 32) & 0xffff
+ minorVersion := (v >> 16) & 0xffff
+ buildNumber := v & 0xffff
+
+ name := fmt.Sprintf("%d.%d.%d", majorVersion, minorVersion, buildNumber)
+
+ return name, nil
+}
+
+func VersionName2VaVersion(version string) (VaVersion, error) {
+ subVersions := strings.Split(version, ".")
+ if len(subVersions) != 3 {
+ return 0, errors.New("Incorrect version format, version formats like 1.12.3")
+ }
+
+ majorVersion, err := strconv.ParseInt(subVersions[0], 10, 64)
+ if nil != err {
+ return 0, errors.New(version + " major part can't be parsed, version formats like 1.12.3")
+ }
+
+ minorVersion, err := strconv.ParseInt(subVersions[1], 10, 64)
+ if nil != err {
+ return 0, errors.New(version + " minor part can't be parsed, version formats like 1.12.3")
+ }
+
+ buildNumber, err := strconv.ParseInt(subVersions[2], 10, 64)
+ if nil != err {
+ return 0, errors.New(version + " build number part can't be parsed, version formats like 1.12.3")
+ }
+
+ if majorVersion > math.MaxUint16 {
+ return 0, errors.New(version + " major version too large, max value is:" + strconv.Itoa(math.MaxUint16))
+ }
+
+ if minorVersion > math.MaxUint16 {
+ return 0, errors.New(version + " minor version too large, max value is:" + strconv.Itoa(math.MaxUint16))
+ }
+
+ if buildNumber > math.MaxUint16 {
+ return 0, errors.New(version + " build number too large, max value is:" + strconv.Itoa(math.MaxUint16))
+ }
+
+ num := (majorVersion << 32) | (minorVersion << 16) | buildNumber
+
+ return VaVersion(num), nil
+}
--
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