feat: provider cmd — list, use, add with interactive key input

cmd/ry/main.go

@@ -5,6 +5,7 @@ import (
 	"os"
 
 	"git.yoresee.cc/nightstar/ry/internal/cmd"
+	_ "git.yoresee.cc/nightstar/ry/internal/provider/rainyun"
 )
 
 func main() {

internal/cmd/provider.go

@@ -0,0 +1,94 @@
+package cmd
+
+import (
+	"fmt"
+
+	"git.yoresee.cc/nightstar/ry/internal/config"
+	"git.yoresee.cc/nightstar/ry/internal/provider"
+
+	"github.com/spf13/cobra"
+)
+
+var providerCmd = &cobra.Command{
+	Use:   "provider",
+	Short: "Manage cloud providers",
+}
+
+var providerListCmd = &cobra.Command{
+	Use:   "list",
+	Short: "List configured providers",
+	Annotations: map[string]string{"skipProvider": "true"},
+	RunE: func(cmd *cobra.Command, args []string) error {
+		// show all registered providers, mark current with *
+		current := ""
+		if cfg != nil {
+			current = cfg.CurrentProvider
+		}
+		for _, name := range provider.List() {
+			marker := " "
+			if name == current {
+				marker = "*"
+			}
+			fmt.Printf("%s %s\n", marker, name)
+		}
+		return nil
+	},
+}
+
+var providerUseCmd = &cobra.Command{
+	Use:   "use <name>",
+	Short: "Switch the current cloud provider",
+	Annotations: map[string]string{"skipProvider": "true"},
+	Args:  cobra.ExactArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		name := args[0]
+		if _, ok := cfg.Providers[name]; !ok {
+			return fmt.Errorf("provider %q not configured — run 'ry provider add %s' first", name, name)
+		}
+		cfg.CurrentProvider = name
+		if err := config.Save(cfgPath, cfg); err != nil {
+			return fmt.Errorf("save config: %w", err)
+		}
+		fmt.Printf("Switched to provider %q\n", name)
+		return nil
+	},
+}
+
+var providerAddCmd = &cobra.Command{
+	Use:   "add <name>",
+	Short: "Add a new cloud provider",
+	Annotations: map[string]string{"skipProvider": "true"},
+	Args:  cobra.ExactArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		name := args[0]
+		fmt.Printf("Adding provider %q...\n", name)
+		fmt.Print("Enter API Key: ")
+		var apiKey string
+		fmt.Scanln(&apiKey)
+		if apiKey == "" {
+			return fmt.Errorf("API Key is required")
+		}
+		if cfg.Providers == nil {
+			cfg.Providers = make(map[string]config.ProviderConfig)
+		}
+		cfg.Providers[name] = config.ProviderConfig{APIKey: apiKey}
+		if cfg.CurrentProvider == "" {
+			cfg.CurrentProvider = name
+		}
+		if err := config.Save(cfgPath, cfg); err != nil {
+			return fmt.Errorf("save config: %w", err)
+		}
+		fmt.Printf("Provider %q added successfully\n", name)
+		if cfg.CurrentProvider == name {
+			fmt.Printf("Set as current provider\n")
+		}
+		return nil
+	},
+}
+
+func init() {
+	providerCmd.AddCommand(providerListCmd)
+	providerCmd.AddCommand(providerUseCmd)
+	providerCmd.AddCommand(providerAddCmd)
+	rootCmd.AddCommand(providerCmd)
+}

internal/cmd/root.go

@@ -25,6 +25,12 @@ var (
 var rootCmd = &cobra.Command{
 	Use:   "ry",
 	Short: "Multi-cloud CLI — manage cloud resources from your terminal",
+	Long:  `ry is a multi-cloud CLI that lets you manage cloud resources from your terminal.
+
+Use "ry [command] --help" for more information about a command.`,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return cmd.Help()
+	},
 	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
 		var err error
 		cfg, err = config.Load(cfgPath)
@@ -32,6 +38,11 @@ var rootCmd = &cobra.Command{
 			return fmt.Errorf("load config: %w", err)
 		}
 
+		// provider subcommands don't need an initialized provider
+		if cmd.Annotations != nil && cmd.Annotations["skipProvider"] == "true" {
+			return nil
+		}
+
 		providerName := cfg.CurrentProvider
 		if flagProvider != "" {
 			providerName = flagProvider