Add qr code support

Author: chyok

go.mod

@@ -4,6 +4,7 @@ go 1.21.1
 
 require (
 	github.com/schollz/progressbar/v3 v3.14.1
+	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
 	github.com/urfave/cli/v2 v2.25.7
 )
 

go.sum

@@ -15,6 +15,8 @@ github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/schollz/progressbar/v3 v3.14.1 h1:VD+MJPCr4s3wdhTc7OEJ/Z3dAeBzJ7yKH/P4lC5yRTI=
 github.com/schollz/progressbar/v3 v3.14.1/go.mod h1:Zc9xXneTzWXF81TGoqL71u0sBPjULtEHYtj/WVgVy8E=
+github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e h1:MRM5ITcdelLK2j1vwZ3Je0FKVCfqOLp5zO6trqMLYs0=
+github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e/go.mod h1:XV66xRDqSt+GTGFMVlhk3ULuV0y9ZmzeVGR4mloJI3M=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=

main.go

@@ -9,6 +9,7 @@ import (
 	"github.com/chyok/st/internal/pkg/discovery"
 	"github.com/chyok/st/internal/pkg/transfer"
 	"github.com/chyok/st/template"
+	"github.com/skip2/go-qrcode"
 
 	"github.com/urfave/cli/v2"
 )
@@ -24,7 +25,10 @@ func sendFile(c *cli.Context) error {
 }
 
 func receiveFile(c *cli.Context) error {
-	fmt.Println("server address: http://" + config.G.LocalIP + ":" + config.G.Port)
+	address := fmt.Sprintf("http://%s:%s", config.G.LocalIP, config.G.Port)
+	q, _ := qrcode.New(address, qrcode.Low)
+	fmt.Println(q.ToSmallString(false))
+	fmt.Printf("Server address: %s \n", address)
 	fmt.Println("Waiting transfer...")
 	go discovery.Listen(config.G.MulticastAddress)
 	http.HandleFunc("/", transfer.ReceiveFileHandler)