123 lines
2.7 KiB
Go
123 lines
2.7 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"io/ioutil"
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"os"
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"os/user"
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"path/filepath"
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"github.com/liamg/aminal/config"
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"github.com/liamg/aminal/version"
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)
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func getActuallyProvidedFlags() map[string]bool {
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result := make(map[string]bool)
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flag.Visit(func(f *flag.Flag) {
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result[f.Name] = true
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})
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return result
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}
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func getConfig() *config.Config {
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showVersion := false
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ignoreConfig := false
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shell := ""
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debugMode := false
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slomo := false
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if flag.Parsed() == false {
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flag.BoolVar(&showVersion, "version", showVersion, "Output version information")
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flag.BoolVar(&ignoreConfig, "ignore-config", ignoreConfig, "Ignore user config files and use defaults")
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flag.StringVar(&shell, "shell", shell, "Specify the shell to use")
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flag.BoolVar(&debugMode, "debug", debugMode, "Enable debug logging")
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flag.BoolVar(&slomo, "slomo", slomo, "Render in slow motion (useful for debugging)")
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flag.Parse() // actual parsing and fetching flags from the command line
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}
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actuallyProvidedFlags := getActuallyProvidedFlags()
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if showVersion {
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v := version.Version
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if v == "" {
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v = "development"
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}
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fmt.Println(v)
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os.Exit(0)
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}
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var conf *config.Config
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if ignoreConfig {
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conf = &config.DefaultConfig
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} else {
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conf = loadConfigFile()
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}
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// Override values in the configuration file with the values specified in the command line, if any.
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if actuallyProvidedFlags["shell"] {
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conf.Shell = shell
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}
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if actuallyProvidedFlags["debug"] {
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conf.DebugMode = debugMode
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}
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if actuallyProvidedFlags["slomo"] {
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conf.Slomo = slomo
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}
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return conf
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}
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func loadConfigFile() *config.Config {
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usr, err := user.Current()
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if err != nil {
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fmt.Printf("Failed to get current user information: %s\n", err)
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return &config.DefaultConfig
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}
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home := usr.HomeDir
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if home == "" {
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return &config.DefaultConfig
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}
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places := []string{}
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xdgHome := os.Getenv("XDG_CONFIG_HOME")
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if xdgHome != "" {
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places = append(places, filepath.Join(xdgHome, "aminal/config.toml"))
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}
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places = append(places, filepath.Join(home, ".config/aminal/config.toml"))
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places = append(places, filepath.Join(home, ".aminal.toml"))
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for _, place := range places {
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if b, err := ioutil.ReadFile(place); err == nil {
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if c, err := config.Parse(b); err == nil {
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return c
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}
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fmt.Printf("Invalid config at %s: %s\n", place, err)
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}
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}
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if b, err := config.DefaultConfig.Encode(); err != nil {
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fmt.Printf("Failed to encode config file: %s\n", err)
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} else {
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err = os.MkdirAll(filepath.Dir(places[0]), 0744)
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if err != nil {
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fmt.Printf("Failed to create config file directory: %s\n", err)
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} else {
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if err = ioutil.WriteFile(places[0], b, 0644); err != nil {
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fmt.Printf("Failed to encode config file: %s\n", err)
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}
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}
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}
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return &config.DefaultConfig
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}
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