234 lines
5.1 KiB
Go
234 lines
5.1 KiB
Go
package config
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import (
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"fmt"
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"log/slog"
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"os"
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"path/filepath"
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"strings"
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"github.com/spf13/viper"
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"gopkg.in/ini.v1"
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)
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var (
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V *viper.Viper
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ROOT string
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)
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const mainIniPath = "bin/conf/env.ini"
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func init() {
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root, err := findConfigRoot()
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if err != nil {
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slog.Warn("can't find config root", "error", err)
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ROOT, _ = os.Getwd()
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} else {
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ROOT = root
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}
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configPath := filepath.Join(ROOT, mainIniPath)
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V = viper.New()
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// 使用 ini 包解析配置文件
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cfg, err := ini.Load(configPath)
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if err != nil {
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slog.Error("load config file error", "error", err)
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// 创建一个空的配置
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cfg = ini.Empty()
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}
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// 将 ini 配置加载到 viper 中
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loadIniToViper(cfg, V)
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if err = loadIncludeFiles(); err != nil {
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panic("load include files error:" + err.Error())
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}
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go signalReload()
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}
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func ReloadConfigFile() {
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configPath := filepath.Join(ROOT, mainIniPath)
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// 使用 ini 包重新加载配置文件
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cfg, err := ini.Load(configPath)
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if err != nil {
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slog.Error("reload config file error", "error", err)
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return
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}
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// 清空现有配置并重新加载
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V = viper.New()
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loadIniToViper(cfg, V)
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if err := loadIncludeFiles(); err != nil {
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slog.Error("reload include files error", "error", err)
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return
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}
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slog.Info("reload config file successfully")
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}
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func SaveConfigFile() error {
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configPath := filepath.Join(ROOT, mainIniPath)
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if err := V.WriteConfigAs(configPath); err != nil {
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slog.Error("save config file error", "error", err)
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return err
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}
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slog.Info("save config file successfully")
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return nil
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}
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func loadIncludeFiles() error {
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includeFile := GetString("include_files.path", "")
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if includeFile != "" {
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includeFiles := strings.Split(includeFile, ",")
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for _, file := range includeFiles {
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file = strings.TrimSpace(file)
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if file != "" {
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// 使用绝对路径或相对路径
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if !filepath.IsAbs(file) {
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file = filepath.Join(ROOT, file)
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}
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// 使用 ini 包加载包含的配置文件
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cfg, err := ini.Load(file)
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if err != nil {
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return fmt.Errorf("failed to read config file %s: %w", file, err)
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}
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// 合并配置到主 viper 实例
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loadIniToViper(cfg, V)
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}
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}
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}
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return nil
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}
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// GetString 获取字符串配置值,支持 section.key 格式
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func GetString(key string, defaultValue string) string {
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if V.IsSet(key) {
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return V.GetString(key)
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}
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return defaultValue
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}
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// GetInt 获取整数配置值,支持 section.key 格式
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func GetInt(key string, defaultValue int) int {
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if V.IsSet(key) {
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return V.GetInt(key)
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}
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return defaultValue
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}
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// GetBool 获取布尔配置值,支持 section.key 格式
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func GetBool(key string, defaultValue bool) bool {
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if V.IsSet(key) {
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return V.GetBool(key)
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}
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return defaultValue
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}
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// GetSection 获取整个 section 的配置,返回 map[string]string
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func GetSection(section string) (map[string]string, error) {
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// 从 viper 中获取 section,格式为 section.key
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sectionMap := make(map[string]string)
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// 遍历所有配置键,查找属于该 section 的配置
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allKeys := V.AllKeys()
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found := false
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for _, key := range allKeys {
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if strings.HasPrefix(key, section+".") {
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found = true
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subKey := strings.TrimPrefix(key, section+".")
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sectionMap[subKey] = V.GetString(key)
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}
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}
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if !found {
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return nil, fmt.Errorf("section %s not found", section)
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}
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return sectionMap, nil
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}
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// GetPath 获取路径配置值,如果是相对路径则基于 ROOT 解析为绝对路径
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func GetPath(key string, defaultValue string) string {
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pathValue := GetString(key, defaultValue)
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if pathValue == "" {
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return defaultValue
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}
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// 如果是绝对路径,直接返回
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if filepath.IsAbs(pathValue) {
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return pathValue
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}
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// 相对路径基于 ROOT 解析
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return filepath.Join(ROOT, pathValue)
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}
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// loadIniToViper 将 ini 配置加载到 viper 中
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func loadIniToViper(cfg *ini.File, v *viper.Viper) {
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for _, section := range cfg.Sections() {
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sectionName := section.Name()
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// 跳过默认 section (DEFAULT)
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if sectionName == ini.DEFAULT_SECTION {
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sectionName = ""
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}
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for _, key := range section.Keys() {
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keyName := key.Name()
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value := key.Value()
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// 构建 viper 键名:section.key 或 key (如果 section 为空)
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var viperKey string
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if sectionName != "" {
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viperKey = sectionName + "." + keyName
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} else {
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viperKey = keyName
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}
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v.Set(viperKey, value)
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}
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}
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}
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// fileExist 检查文件或目录是否存在
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// 如果由 filename 指定的文件或目录存在则返回 true,否则返回 false
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func fileExist(filename string) bool {
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_, err := os.Stat(filename)
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return err == nil || os.IsExist(err)
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}
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func findConfigRoot() (string, error) {
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if execPath, err := os.Executable(); err == nil {
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if root := searchConfig(filepath.Dir(execPath)); root != "" {
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return root, nil
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}
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}
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if wd, err := os.Getwd(); err == nil {
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if root := searchConfig(wd); root != "" {
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return root, nil
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}
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}
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return "", fmt.Errorf("unable to locate %s", mainIniPath)
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}
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func searchConfig(start string) string {
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dir := start
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for {
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configPath := filepath.Join(dir, mainIniPath)
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if fileExist(configPath) {
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return dir
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}
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parent := filepath.Dir(dir)
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if parent == dir {
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break
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}
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dir = parent
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}
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return ""
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}
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