feat: select which applications to install

cli.go

@@ -33,8 +33,36 @@ func (c *CLI) defaultTokenPath() (string, error) {
 	return filepath.Join(cfg, "vin", "token.json"), nil
 }
 
+func (c *CLI) selectApps(v Vin) ([]App, error) {
+	// allApps is a map for referencing applications by repository name
+	allApps := make(map[string]App)
+	for _, app := range v.Apps {
+		allApps[app.Repo] = app
+	}
+
+	repos := make([]string, 0)
+	prompt := &survey.MultiSelect{
+		Message: "select applications to install",
+		Options: v.repos(),
+	}
+	if err := survey.AskOne(prompt, &repos); err != nil {
+		return nil, err
+	}
+
+	apps := make([]App, 0)
+	for _, repo := range repos {
+		apps = append(apps, allApps[repo])
+	}
+	return apps, nil
+}
+
+// CLIOptions represents options for the CIL.
+type CLIOptions struct {
+	SelectApps bool
+}
+
 // Run runs the CLI.
-func (c *CLI) Run() error {
+func (c *CLI) Run(opt CLIOptions) error {
 	configPath, err := c.defaultConfigPath()
 	if err != nil {
 		return err
@@ -50,6 +78,14 @@ func (c *CLI) Run() error {
 		return err
 	}
 
+	if opt.SelectApps {
+		apps, err := c.selectApps(*v)
+		if err != nil {
+			return err
+		}
+		v.Apps = apps
+	}
+
 	for _, app := range v.Apps {
 		urls := app.suitableAssetURLs()
 		if len(urls) == 0 {

cmd/vin/cmd/cmd_get.go

@@ -5,9 +5,14 @@ import (
 	"github.com/spf13/cobra"
 )
 
+var selectApps bool
+
 func runGet(cmd *cobra.Command, args []string) error {
 	cli := vin.NewCLI()
-	return cli.Run()
+	opt := vin.CLIOptions{
+		SelectApps: selectApps,
+	}
+	return cli.Run(opt)
 }
 
 var getCmd = &cobra.Command{
@@ -18,5 +23,7 @@ var getCmd = &cobra.Command{
 }
 
 func init() { //nolint:gochecknoinits
+	getCmd.Flags().BoolVarP(&selectApps, "select", "s", false, "select applications to install")
+
 	rootCmd.AddCommand(getCmd)
 }

vin.go

@@ -99,3 +99,11 @@ func New(configPath, tokenPath string) (*Vin, error) {
 	}
 	return &v, nil
 }
+
+func (v *Vin) repos() []string {
+	r := make([]string, 0)
+	for _, app := range v.Apps {
+		r = append(r, app.Repo)
+	}
+	return r
+}