add go generate code for updating version

main.go

@@ -1,4 +1,5 @@
 package main
+//go:generate go run src/install/updateversion.go
 
 import (
 	"fmt"
@@ -7,44 +8,6 @@ import (
 )
 
 func main() {
-	// f, _ := os.Create("test.1")
-	// f.Truncate(8096)
-	// f.Close()
-
-	// file, _ := os.Open("test.1")
-	// defer file.Close()
-
-	// buffer := make([]byte, 4096)
-	// emptyBuffer := make([]byte, 4096)
-	// for {
-	// 	bytesread, err := file.Read(buffer)
-	// 	if err != nil {
-	// 		break
-	// 	}
-	// 	log.Debugln(bytes.Equal(buffer[:bytesread], emptyBuffer[:bytesread]))
-	// }
-	// var sender bool
-	// flag.BoolVar(&sender, "sender", false, "sender")
-	// flag.Parse()
-	// c, err := croc.New(sender, "foo")
-	// if err != nil {
-	// 	panic(err)
-	// }
-	// if sender {
-	// 	err = c.Send(croc.TransferOptions{
-	// 		// PathToFile: "../wskeystore/README.md",
-	// 		// PathToFile:       "./src/croc/croc.go",
-	// 		// PathToFiles: []string{"C:\\Users\\zacks\\go\\src\\github.com\\schollz\\croc\\src\\croc\\croc.go", "croc.exe"},
-	// 		PathToFiles: []string{"croc2.exe", "croc3.exe"}, //,"croc2.exe", "croc3.exe"},
-	// 		//PathToFiles:      []string{"README.md"}, //,"croc2.exe", "croc3.exe"},
-	// 		KeepPathInRemote: false,
-	// 	})
-	// } else {
-	// 	err = c.Receive()
-	// }
-	// if err != nil {
-	// 	fmt.Println(err)
-	// }
 	if err := cli.Run(); err != nil {
 		fmt.Println(err)
 	}

src/cli/cli.go

@@ -21,14 +21,14 @@ import (
 var Version string
 
 func Run() (err error) {
-
+// use all of the processors
 	runtime.GOMAXPROCS(runtime.NumCPU())
+
 	app := cli.NewApp()
 	app.Name = "croc"
 	if Version == "" {
-		Version = "dev"
+		Version = "6.0.0"
 	}
-
 	app.Version = Version
 	app.Compiled = time.Now()
 	app.Usage = "easily and securely transfer stuff from one computer to another"

src/install/updateversion.go

@@ -0,0 +1,53 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"strings"
+)
+
+func main() {
+	err := run()
+	if err != nil {
+		fmt.Println(err)
+	}
+}
+
+func run() (err error) {
+	b, err := ioutil.ReadFile("README.md")
+	if err != nil {
+		return
+	}
+	newVersion := GetStringInBetween(string(b), "version-", "-b")
+
+	b, err = ioutil.ReadFile("src/cli/cli.go")
+	if err != nil {
+		return
+	}
+	oldVersion := GetStringInBetween(string(b), `Version = "`, `"`)
+
+	if newVersion != oldVersion {
+		fmt.Printf("new version: '%s'\n", newVersion)
+		fmt.Printf("old version: '%s'\n", oldVersion)
+		newCli := strings.Replace(string(b), fmt.Sprintf(`Version = "%s"`, oldVersion), fmt.Sprintf(`Version = "%s"`, newVersion), 1)
+		err = ioutil.WriteFile("src/cli/cli.go", []byte(newCli), 0644)
+	} else {
+		fmt.Printf("current version: '%s'\n", oldVersion)
+	}
+	return
+}
+
+// GetStringInBetween Returns empty string if no start string found
+func GetStringInBetween(str string, start string, end string) (result string) {
+	s := strings.Index(str, start)
+	if s == -1 {
+		return
+	}
+	s += len(start)
+	e := strings.Index(str[s:], end)
+	if e == -1 {
+		return
+	}
+	e += s
+	return str[s:e]
+}