152 lines
3.5 KiB
Go
152 lines
3.5 KiB
Go
package service
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import (
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"cmp"
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"encoding/json"
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"fmt"
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"log"
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"os"
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"path/filepath"
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"strconv"
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"strings"
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"sync"
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)
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// ==================== 常量定义 ====================
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// AppVersion 应用版本号（发布时直接修改此处）
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const AppVersion = "0.4.2"
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// 版本号缓存
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var (
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cachedVersion string
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versionOnce sync.Once
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)
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// ==================== 类型定义 ====================
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// Version 版本号结构
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type Version struct {
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Major int
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Minor int
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Patch int
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}
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// WailsConfig Wails 配置文件结构
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type WailsConfig struct {
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Version string `json:"version"`
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}
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// ==================== 版本号解析和比较 ====================
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// ParseVersion 解析版本号字符串（支持 v1.0.0 或 1.0.0 格式）
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func ParseVersion(versionStr string) (*Version, error) {
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versionStr = strings.TrimPrefix(versionStr, "v")
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parts := strings.Split(versionStr, ".")
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if len(parts) != 3 {
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return nil, fmt.Errorf("版本号格式错误，应为 x.y.z 格式")
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}
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major, err := strconv.Atoi(parts[0])
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if err != nil {
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return nil, fmt.Errorf("主版本号解析失败: %v", err)
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}
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minor, err := strconv.Atoi(parts[1])
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if err != nil {
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return nil, fmt.Errorf("次版本号解析失败: %v", err)
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}
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patch, err := strconv.Atoi(parts[2])
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if err != nil {
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return nil, fmt.Errorf("修订号解析失败: %v", err)
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}
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return &Version{Major: major, Minor: minor, Patch: patch}, nil
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}
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// Compare 比较版本号
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// 返回值：-1 表示当前版本小于目标版本，0 表示相等，1 表示大于
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func (v *Version) Compare(other *Version) int {
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switch {
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case v.Major != other.Major:
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return cmp.Compare(v.Major, other.Major)
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case v.Minor != other.Minor:
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return cmp.Compare(v.Minor, other.Minor)
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case v.Patch != other.Patch:
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return cmp.Compare(v.Patch, other.Patch)
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default:
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return 0
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}
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}
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// IsNewerThan 判断是否比目标版本新
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func (v *Version) IsNewerThan(other *Version) bool {
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return v.Compare(other) > 0
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}
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// ==================== 版本号获取 ====================
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// GetCurrentVersion 获取当前版本号（带缓存）
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// 优先级：硬编码版本号 > wails.json（开发模式）> 默认值
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func GetCurrentVersion() string {
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versionOnce.Do(func() {
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if AppVersion != "" {
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cachedVersion = AppVersion
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return
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}
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version := getVersionFromWailsJSON()
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if version != "" {
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cachedVersion = version
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return
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}
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cachedVersion = "0.0.1"
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})
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return cachedVersion
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}
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// ==================== 配置文件读取 ====================
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// getVersionFromWailsJSON 从 wails.json 读取版本号（仅开发模式使用）
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func getVersionFromWailsJSON() string {
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wd, err := os.Getwd()
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if err != nil {
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return ""
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}
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// 尝试当前目录
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if version := readVersionFromFile(filepath.Join(wd, "wails.json")); version != "" {
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return version
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}
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// 尝试父目录
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if version := readVersionFromFile(filepath.Join(filepath.Dir(wd), "wails.json")); version != "" {
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return version
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}
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return ""
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}
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// readVersionFromFile 从指定文件读取版本号
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func readVersionFromFile(filePath string) string {
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data, err := os.ReadFile(filePath)
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if err != nil {
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log.Printf("[版本] 读取文件失败: %s, 错误: %v", filePath, err)
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return ""
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}
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var config WailsConfig
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if err := json.Unmarshal(data, &config); err != nil {
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log.Printf("[版本] 解析 JSON 失败: %s, 错误: %v", filePath, err)
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return ""
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}
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if config.Version != "" {
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log.Printf("[版本] 从文件读取版本号: %s -> %s", filePath, config.Version)
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}
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return config.Version
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}
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