fix version check

version.go

@@ -5,6 +5,8 @@ import (
 	"io"
 	"net/http"
 	"regexp"
+
+	"github.com/Masterminds/semver/v3"
 )
 
 const (
@@ -28,11 +30,22 @@ func needUpdate() (bool, error) {
 		return false, fmt.Errorf("unable to read response body: %v", err)
 	}
 
-	re := regexp.MustCompile(`const version = "([\d.]+)"`)
+	fmt.Println(string(b))
+	re := regexp.MustCompile(`version\s+=\s+"(\d+.\d+.\d+)"`)
 	ver := re.FindStringSubmatch(string(b))
-	if len(ver) < 2 || ver[1] == "" {
-		return false, fmt.Errorf("unable to find version in response")
+	if ver[1] == "" {
+		return false, fmt.Errorf("unable to parse version number")
 	}
 
-	return ver[1] != version, nil
+	curVer, err := semver.NewVersion(version)
+	if err != nil {
+		return false, fmt.Errorf("unable to parse current version to semver: %v", err)
+	}
+
+	newVer, err := semver.NewVersion(ver[1])
+	if err != nil {
+		return false, fmt.Errorf("unable to parse new version to semver: %v", err)
+	}
+
+	return curVer != newVer, nil
 }