feat(config): refactor config to allow running without config

main.go

@@ -1,8 +1,6 @@
 package main // import "github.com/Jguer/yay"
 
 import (
-	"encoding/json"
-	"errors"
 	"fmt"
 	"os"
 
@@ -24,57 +22,6 @@ func initGotext() {
 	gotext.Configure(localePath, os.Getenv("LANG"), "yay")
 }
 
-func initConfig(configPath string) error {
-	cfile, err := os.Open(configPath)
-	if !os.IsNotExist(err) && err != nil {
-		return errors.New(gotext.Get("failed to open config file '%s': %s", configPath, err))
-	}
-
-	defer cfile.Close()
-	if !os.IsNotExist(err) {
-		decoder := json.NewDecoder(cfile)
-		if err = decoder.Decode(&config); err != nil {
-			return errors.New(gotext.Get("failed to read config file '%s': %s", configPath, err))
-		}
-	}
-
-	aurdest := os.Getenv("AURDEST")
-	if aurdest != "" {
-		config.BuildDir = aurdest
-	}
-
-	return nil
-}
-
-func initVCS(vcsFilePath string) error {
-	vfile, err := os.Open(vcsFilePath)
-	if !os.IsNotExist(err) && err != nil {
-		return errors.New(gotext.Get("failed to open vcs file '%s': %s", vcsFilePath, err))
-	}
-
-	defer vfile.Close()
-	if !os.IsNotExist(err) {
-		decoder := json.NewDecoder(vfile)
-		if err = decoder.Decode(&savedInfo); err != nil {
-			return errors.New(gotext.Get("failed to read vcs file '%s': %s", vcsFilePath, err))
-		}
-	}
-
-	return nil
-}
-
-func initBuildDir() error {
-	if _, err := os.Stat(config.BuildDir); os.IsNotExist(err) {
-		if err = os.MkdirAll(config.BuildDir, 0o755); err != nil {
-			return errors.New(gotext.Get("failed to create BuildDir directory '%s': %s", config.BuildDir, err))
-		}
-	} else if err != nil {
-		return err
-	}
-
-	return nil
-}
-
 func initAlpm(cmdArgs *settings.Arguments, pacmanConfigPath string) (*pacmanconf.Config, bool, error) {
 	root := "/"
 	if value, _, exists := cmdArgs.GetArg("root", "r"); exists {
@@ -124,6 +71,7 @@ func initAlpm(cmdArgs *settings.Arguments, pacmanConfigPath string) (*pacmanconf
 }
 
 func main() {
+	var err error
 	ret := 0
 	defer func() { os.Exit(ret) }()
 	initGotext()
@@ -131,28 +79,16 @@ func main() {
 		text.Warnln(gotext.Get("Avoid running yay as root/sudo."))
 	}
 
+	config, err = settings.NewConfig()
+	if err != nil {
+		if str := err.Error(); str != "" {
+			fmt.Fprintln(os.Stderr, str)
+		}
+		ret = 1
+		return
+	}
+
 	cmdArgs := settings.MakeArguments()
-	runtime, err := settings.MakeRuntime()
-	if err != nil {
-		if str := err.Error(); str != "" {
-			fmt.Fprintln(os.Stderr, str)
-		}
-		ret = 1
-		return
-	}
-
-	config = settings.MakeConfig()
-	config.Runtime = runtime
-
-	err = initConfig(runtime.ConfigPath)
-	if err != nil {
-		if str := err.Error(); str != "" {
-			fmt.Fprintln(os.Stderr, str)
-		}
-		ret = 1
-		return
-	}
-
 	err = cmdArgs.ParseCommandLine(config)
 	if err != nil {
 		if str := err.Error(); str != "" {
@@ -163,30 +99,12 @@ func main() {
 	}
 
 	if config.Runtime.SaveConfig {
-		errS := config.SaveConfig(runtime.ConfigPath)
+		errS := config.Save(config.Runtime.ConfigPath)
 		if errS != nil {
 			fmt.Fprintln(os.Stderr, err)
 		}
 	}
 
-	config.ExpandEnv()
-	err = initBuildDir()
-	if err != nil {
-		if str := err.Error(); str != "" {
-			fmt.Fprintln(os.Stderr, str)
-		}
-		ret = 1
-		return
-	}
-
-	err = initVCS(runtime.VCSPath)
-	if err != nil {
-		if str := err.Error(); str != "" {
-			fmt.Fprintln(os.Stderr, str)
-		}
-		ret = 1
-		return
-	}
 	var useColor bool
 	config.Runtime.PacmanConf, useColor, err = initAlpm(cmdArgs, config.PacmanConf)
 	if err != nil {
@@ -199,7 +117,7 @@ func main() {
 
 	text.UseColor = useColor
 
-	dbExecutor, err := ialpm.NewExecutor(runtime.PacmanConf)
+	dbExecutor, err := ialpm.NewExecutor(config.Runtime.PacmanConf)
 	if err != nil {
 		if str := err.Error(); str != "" {
 			fmt.Fprintln(os.Stderr, str)