Don't bomb out when config file not found, just warn

cmd/root.go

@@ -60,13 +60,12 @@ func init() {
 	cobra.OnInitialize(func() {
 		err := config.Init()
 		if err != nil {
-			fmt.Fprintln(os.Stderr, "Could not initialize configuration:", err)
+			fmt.Fprintln(os.Stderr, "Warning: Could not initialize configuration:", err)
-			os.Exit(1)
 		}
 	})
 	cobra.OnInitialize(func() {
 		if verbose {
-			output = os.Stderr
+			output = os.Stdout
 		} else {
 			output = io.Discard
 		}

internal/pkg/config/config.go

@@ -19,17 +19,11 @@ type command string
 
 var (
 	ConfigFile string = CONFIG_FILE_DEFAULT
-	networks   *[]network.Network
+	networks          = &[]network.Network{}
-	containers *[]container.Container
+	containers        = &[]container.Container{}
-	categories *[]string
+	categories        = &[]string{}
 )
 
-// A parsing convenience
-type parse struct {
-	Networks   []network.Network
-	Containers []container.Container
-}
-
 func Categories() []string {
 	if categories != nil {
 		return *categories
@@ -65,6 +59,12 @@ func Union(ids []string) (conts []container.Container) {
 	return
 }
 
+// A parsing convenience
+type parse struct {
+	Networks   []network.Network
+	Containers []container.Container
+}
+
 func Init() error {
 	f, err := os.ReadFile(ConfigFile)
 	if err != nil {