Add port prompt for compute init

pkg/app/run_test.go

@@ -285,6 +285,8 @@ COMMANDS
                                    package
         --backend=BACKEND          A hostname, IPv4, or IPv6 address for the
                                    package backend
+        --backend-port=BACKEND-PORT
+                                   A port number for the package backend
 
   compute build [<flags>]
     Build a Compute@Edge package locally

pkg/compute/init.go

@@ -69,15 +69,16 @@ type StarterKit struct {
 // InitCommand initializes a Compute@Edge project package on the local machine.
 type InitCommand struct {
 	common.Base
-	client   api.HTTPClient
-	manifest manifest.Data
-	language string
-	from     string
-	branch   string
-	tag      string
-	path     string
-	domain   string
-	backend  string
+	client      api.HTTPClient
+	manifest    manifest.Data
+	language    string
+	from        string
+	branch      string
+	tag         string
+	path        string
+	domain      string
+	backend     string
+	backendPort uint
 }
 
 // NewInitCommand returns a usable command registered under the parent.
@@ -96,8 +97,9 @@ func NewInitCommand(parent common.Registerer, client api.HTTPClient, globals *co
 	c.CmdClause.Flag("branch", "Git branch name to clone from package template repository").Hidden().StringVar(&c.branch)
 	c.CmdClause.Flag("tag", "Git tag name to clone from package template repository").Hidden().StringVar(&c.tag)
 	c.CmdClause.Flag("path", "Destination to write the new package, defaulting to the current directory").Short('p').StringVar(&c.path)
-	c.CmdClause.Flag("domain", "The name of the domain associated to the package").StringVar(&c.path)
-	c.CmdClause.Flag("backend", "A hostname, IPv4, or IPv6 address for the package backend").StringVar(&c.path)
+	c.CmdClause.Flag("domain", "The name of the domain associated to the package").StringVar(&c.domain)
+	c.CmdClause.Flag("backend", "A hostname, IPv4, or IPv6 address for the package backend").StringVar(&c.backend)
+	c.CmdClause.Flag("backend-port", "A port number for the package backend").UintVar(&c.backendPort)
 
 	return &c
 }
@@ -293,9 +295,25 @@ func (c *InitCommand) Exec(in io.Reader, out io.Writer) (err error) {
 		}
 		if c.backend == "" || c.backend == "originless" {
 			c.backend = "127.0.0.1"
+			c.backendPort = uint(80)
 		}
 	}
 
+	if c.backendPort == 0 {
+		input, err := text.Input(out, "Backend port number: [80] ", in)
+		if err != nil {
+			return fmt.Errorf("error reading input %w", err)
+		}
+
+		portnumber, err := strconv.Atoi(input)
+		if err != nil {
+			text.Warning(out, "error converting input: %v. We'll use the default port number: [80].", err)
+			portnumber = 80
+		}
+
+		c.backendPort = uint(portnumber)
+	}
+
 	text.Break(out)
 
 	if !c.Globals.Verbose() {
@@ -370,6 +388,7 @@ func (c *InitCommand) Exec(in io.Reader, out io.Writer) (err error) {
 		ServiceVersion: version,
 		Name:           c.backend,
 		Address:        c.backend,
+		Port:           c.backendPort,
 	})
 	if err != nil {
 		return fmt.Errorf("error creating backend: %w", err)