better get func

command/alias.go

@@ -73,11 +73,12 @@ func aliasSet(cmd *cobra.Command, args []string) error {
 
 	successMsg := fmt.Sprintf("%s Added alias.", utils.Green("✓"))
 
-	if aliasCfg.Exists(alias) {
+	oldExpansion, ok := aliasCfg.Get(alias)
+	if ok {
 		successMsg = fmt.Sprintf("%s Changed alias %s from %s to %s",
 			utils.Green("✓"),
 			utils.Bold(alias),
-			utils.Bold(aliasCfg.Get(alias)),
+			utils.Bold(oldExpansion),
 			utils.Bold(expansionStr),
 		)
 	}
@@ -188,11 +189,11 @@ func aliasDelete(cmd *cobra.Command, args []string) error {
 		return fmt.Errorf("couldn't read aliases config: %w", err)
 	}
 
-	if !aliasCfg.Exists(alias) {
+	expansion, ok := aliasCfg.Get(alias)
+	if !ok {
 		return fmt.Errorf("no such alias %s", alias)
-	}
 
-	expansion := aliasCfg.Get(alias)
+	}
 
 	err = aliasCfg.Delete(alias)
 	if err != nil {

command/root.go

@@ -464,9 +464,9 @@ func ExpandAlias(args []string) ([]string, error) {
 		return empty, err
 	}
 
-	if aliases.Exists(args[1]) {
+	expansion, ok := aliases.Get(args[1])
+	if ok {
 		extraArgs := []string{}
-		expansion := aliases.Get(args[1])
 		for i, a := range args[2:] {
 			if !strings.Contains(expansion, "$") {
 				extraArgs = append(extraArgs, a)

internal/config/alias_config.go

@@ -9,19 +9,13 @@ type AliasConfig struct {
 	Parent Config
 }
 
-func (a *AliasConfig) Exists(alias string) bool {
+func (a *AliasConfig) Get(alias string) (string, bool) {
 	if a.Empty() {
-		return false
+		return "", false
 	}
 	value, _ := a.GetStringValue(alias)
 
-	return value != ""
-}
-
-func (a *AliasConfig) Get(alias string) string {
-	value, _ := a.GetStringValue(alias)
-
-	return value
+	return value, value != ""
 }
 
 func (a *AliasConfig) Add(alias, expansion string) error {