package internal import ( "fmt" "os" "path" "path/filepath" "strings" "sync" "github.com/cupcakearmy/autorestic/internal/colors" "github.com/cupcakearmy/autorestic/internal/flags" "github.com/cupcakearmy/autorestic/internal/lock" "github.com/joho/godotenv" "github.com/mitchellh/go-homedir" "github.com/spf13/cobra" "github.com/spf13/viper" ) const VERSION = "1.7.4" type OptionMap map[string][]interface{} type Options map[string]OptionMap type Config struct { Version string `mapstructure:"version"` Extras interface{} `mapstructure:"extras"` Locations map[string]Location `mapstructure:"locations"` Backends map[string]Backend `mapstructure:"backends"` Global Options `mapstructure:"global"` } var once sync.Once var config *Config func exitConfig(err error, msg string) { if err != nil { colors.Error.Println(err) } if msg != "" { colors.Error.Println(msg) } lock.Unlock() os.Exit(1) } func GetConfig() *Config { if config == nil { once.Do(func() { if err := viper.ReadInConfig(); err == nil { absConfig, _ := filepath.Abs(viper.ConfigFileUsed()) if !flags.CRON_LEAN { colors.Faint.Println("Using config: \t", absConfig) } // Load env file envFile := filepath.Join(filepath.Dir(absConfig), ".autorestic.env") err = godotenv.Load(envFile) if err == nil && !flags.CRON_LEAN { colors.Faint.Println("Using env:\t", envFile) } } else { text := err.Error() if strings.Contains(text, "no such file or directory") { cfgFileName := ".autorestic" colors.Error.Println( fmt.Sprintf( "cannot find configuration file '%s.yml' or '%s.yaml'.", cfgFileName, cfgFileName)) } else { colors.Error.Println("could not load config file\n" + text) } os.Exit(1) } var versionConfig interface{} viper.UnmarshalKey("version", &versionConfig) if versionConfig == nil { exitConfig(nil, "no version specified in config file. please see docs on how to migrate") } version, ok := versionConfig.(int) if !ok { exitConfig(nil, "version specified in config file is not an int") } else { // Check for version if version != 2 { exitConfig(nil, "unsupported config version number. please check the docs for migration\nhttps://autorestic.vercel.app/migration/") } } config = &Config{} if err := viper.UnmarshalExact(config); err != nil { exitConfig(err, "Could not parse config file!") } }) } return config } func GetPathRelativeToConfig(p string) (string, error) { if path.IsAbs(p) { return p, nil } else if strings.HasPrefix(p, "~") { home, err := homedir.Dir() return path.Join(home, strings.TrimPrefix(p, "~")), err } else { return path.Join(path.Dir(viper.ConfigFileUsed()), p), nil } } func (c *Config) Describe() { // Locations for name, l := range c.Locations { var tmp string colors.PrimaryPrint(`Location: "%s"`, name) tmp = "" for _, path := range l.From { tmp += fmt.Sprintf("\t%s %s\n", colors.Success.Sprint("←"), path) } colors.PrintDescription("From", tmp) tmp = "" for _, to := range l.To { tmp += fmt.Sprintf("\t%s %s\n", colors.Success.Sprint("→"), to) } colors.PrintDescription("To", tmp) if l.Cron != "" { colors.PrintDescription("Cron", l.Cron) } tmp = "" hooks := map[string][]string{ "Before": l.Hooks.Before, "After": l.Hooks.After, "Failure": l.Hooks.Failure, "Success": l.Hooks.Success, } for hook, commands := range hooks { if len(commands) > 0 { tmp += "\n\t" + hook for _, cmd := range commands { tmp += colors.Faint.Sprintf("\n\t ▶ %s", cmd) } } } if tmp != "" { colors.PrintDescription("Hooks", tmp) } if len(l.Options) > 0 { tmp = "" for t, options := range l.Options { tmp += "\n\t" + t for option, values := range options { for _, value := range values { tmp += colors.Faint.Sprintf("\n\t ✧ --%s=%s", option, value) } } } colors.PrintDescription("Options", tmp) } } // Backends for name, b := range c.Backends { colors.PrimaryPrint("Backend: \"%s\"", name) colors.PrintDescription("Type", b.Type) colors.PrintDescription("Path", b.Path) if len(b.Env) > 0 { tmp := "" for option, value := range b.Env { tmp += fmt.Sprintf("\n\t%s %s %s", colors.Success.Sprint("✧"), strings.ToUpper(option), colors.Faint.Sprint(value)) } colors.PrintDescription("Env", tmp) } } } func CheckConfig() error { c := GetConfig() if c == nil { return fmt.Errorf("config could not be loaded/found") } if !CheckIfResticIsCallable() { return fmt.Errorf(`%s was not found. Install either with "autorestic install" or manually`, flags.RESTIC_BIN) } for name, backend := range c.Backends { backend.name = name if err := backend.validate(); err != nil { return err } } for name, location := range c.Locations { location.name = name if err := location.validate(); err != nil { return err } } return nil } func GetAllOrSelected(cmd *cobra.Command, backends bool) ([]string, error) { var list []string if backends { for name := range config.Backends { list = append(list, name) } } else { for name := range config.Locations { list = append(list, name) } } all, _ := cmd.Flags().GetBool("all") if all { return list, nil } var selected []string if backends { selected, _ = cmd.Flags().GetStringSlice("backend") } else { selected, _ = cmd.Flags().GetStringSlice("location") } for _, s := range selected { var splitted = strings.Split(s, "@") for _, l := range list { if l == splitted[0] { goto found } } if backends { return nil, fmt.Errorf("invalid backend \"%s\"", s) } else { return nil, fmt.Errorf("invalid location \"%s\"", s) } found: } if len(selected) == 0 { return selected, fmt.Errorf("nothing selected, aborting") } return selected, nil } func AddFlagsToCommand(cmd *cobra.Command, backend bool) { var usage string if backend { usage = "all backends" } else { usage = "all locations" } cmd.PersistentFlags().BoolP("all", "a", false, usage) if backend { cmd.PersistentFlags().StringSliceP("backend", "b", []string{}, "select backends") } else { cmd.PersistentFlags().StringSliceP("location", "l", []string{}, "select locations") } } func (c *Config) SaveConfig() error { file := viper.ConfigFileUsed() if err := CopyFile(file, file+".old"); err != nil { return err } colors.Secondary.Println("Saved a backup copy of your file next to the original.") viper.Set("backends", c.Backends) viper.Set("locations", c.Locations) return viper.WriteConfig() } func optionToString(option string) string { if !strings.HasPrefix(option, "-") { return "--" + option } return option } func appendOptionsToSlice(str *[]string, options OptionMap) { for key, values := range options { for _, value := range values { // Bool asBool, ok := value.(bool) if ok && asBool { *str = append(*str, optionToString(key)) continue } *str = append(*str, optionToString(key), fmt.Sprint(value)) } } } func getOptions(options Options, keys []string) []string { var selected []string for _, key := range keys { appendOptionsToSlice(&selected, options[key]) } return selected } func combineBackendOptions(key string, b Backend) []string { // Priority: backend > global var options []string gFlags := getOptions(GetConfig().Global, []string{key}) bFlags := getOptions(b.Options, []string{"all", key}) options = append(options, gFlags...) options = append(options, bFlags...) return options } func combineAllOptions(key string, l Location, b Backend) []string { // Priority: location > backend > global var options []string gFlags := getOptions(GetConfig().Global, []string{key}) bFlags := getOptions(b.Options, []string{"all", key}) lFlags := getOptions(l.Options, []string{"all", key}) options = append(options, gFlags...) options = append(options, bFlags...) options = append(options, lFlags...) return options }